2021 Mazda3 Warning and Indicator Lights User Manual

Introduction

On its instrument panel, the 2021 Mazda3 is fitted with a number of warning and indicator lights. These lights are intended to notify the driver of various vehicle issues or problems. Maintaining the safety and functionality of your Mazda3 depends on your understanding of each warning or indicator light. In the 2021 Mazda3, you might see the following warning and indicator lights:

1.  Check Engine Light: This light, which is commonly represented as an engine symbol, alerts the driver to a problem with the engine or one of its associated parts. It can just be a loose gas cap, or it might be a more serious engine issue. It is recommended to have your car evaluated by a skilled technician if this light comes on.
2. System for Monitoring Tire Pressure (TPMS) Warning Light: When one or more of your tires have low air pressure, this light, which is typically portrayed as an exclamation mark inside a horseshoe-shaped tire, glows. As soon as you can, check the tire pressures and raise them to the required levels.
3. Battery/Charging System Warning Light: This light, which is typically shaped like a battery or includes the term “BATT” or “ALT,” alerts the driver to a problem with the charging system of the car. It can be an indication of a bad battery, alternator, or electrical setup. If this light comes on, get your car checked out by a professional.
4. ABS Warning Light: The ABS warning light, which is commonly represented by the letters “ABS” enclosed in a circle, alerts the driver of a problem with the ABS. When this indicator illuminates, the ABS may not be operating properly, thus it’s best to get it checked by a trained specialist.
5. Oil Pressure Warning Light: When the engine oil pressure is low, this light, which is typically fashioned like an oil can or a droplet of oil, lights. It’s critical to stop the car right away and check the oil level. Have the car inspected to find out why the oil pressure is low if the oil level is enough.
6. Traction Control System (TCS) or Stability Control Warning Light: This light, which is frequently represented by an automobile in skids or with the letters “TCS” or “ESC,” signifies a problem with the traction control or stability control systems. To identify and resolve the problem, have an expert inspect your car.

Warning and Indicator Lights

If a Warning Light Turns On or Flashes
If any warning light turns on/flashes, take appropriate action for each light. There is no problem if the light turns off, however if the light does not turn off or turns on/flashes again, consult an Authorized Mazda Dealer. The details for some warnings can be viewed on the center display or multi-information display in the instrument cluster.

Center display

1. Select “Information” on the home screen.
2. Select “Vehicle Status Monitor”.
3. Select the applicable warning to view the warning details.

NOTE
You can also display the currently occurring warning by sliding the commander knob to the left while on the home screen of the center display.

Multi-information display

1. Press the INFO switch on the steering switch to display the warning indication screen. Refer to Multi-information Display.

Brake System Warning Indication/Warning Light

This warning has the following functions:

Warning light inspection
For an operation check, make sure that the light turns on when the ignition is switched on, and turns off a few seconds later or when the engine is started.

When the light turns on
If the brake system warning light remains illuminated the brake fluid may be low or there could be a problem with the brake system. Park the vehicle in a safe place immediately and contact an Authorized Mazda Dealer. Refer to Inspecting Brake/Clutch Fluid Level.

WARNING
Do not drive with the brake system warning light illuminated. Contact an Authorized Mazda Dealer to have the brakes inspected as soon as possible: Driving with the brake system warning light illuminated is dangerous. It indicates that your brakes may not work at all or that they could completely fail at any time. If this light remains illuminated, after checking that the parking brake is fully released, have the brakes inspected immediately.

CAUTION

• In addition, the effectiveness of the braking may diminish so you may need to depress the brake pedal more strongly than normal to stop the vehicle.

Electronic Brake Force Distribution System Warning

If the electronic brake force distribution control unit determines that some components are operating incorrectly, the control unit may illuminate the brake system warning light and the ABS warning light simultaneously. The problem is likely to be the electronic brake force distribution system.

WARNING
Do not drive with both the brake system warning light and ABS warning light illuminated. Have the vehicle towed to an Authorized Mazda Dealer to have the brakes inspected as soon as possible:
Driving when the brake system warning light and ABS warning light are illuminated simultaneously is dangerous. When both lights are illuminated, the rear wheels could lock more quickly in an emergency stop than under normal circumstances.

Charging System Warning Indication/Warning Light

If the warning light illuminates while driving, it indicates a malfunction of the alternator or of the charging system. Drive to the side of the road and park off the right-of-way. Consult an Authorized Mazda Dealer.

CAUTION
Do not continue driving when the charging system warning light is illuminated because the engine could stop unexpectedly.

Engine Oil Warning Indication/Warning Light

This warning light indicates low engine oil pressure.

CAUTION
Do not run the engine if the oil pressure is low. Otherwise, it could result in extensive engine damage. If the light illuminates or the warning indication is displayed while driving:

1. Drive to the side of the road and park off the right-of-way on level ground.
2. Turn off the engine and wait 5 minutes for the oil to drain back into the oil pan.
3. Inspect the engine oil level . If it’s low, add the appropriate amount of engine oil while being careful not to overfill.
   CAUTION
   Do not run the engine if the oil level is low. Otherwise, it could result in extensive engine damage.
4. Start the engine and check the warning light.
   If the light remains illuminated even though the oil level is normal or after adding oil, stop the engine immediately and have your vehicle towed to an Authorized Mazda Dealer.

High Engine Coolant Temperature Warning Indication

Displays if the engine coolant temperature has increased excessively.
“Elevated Engine Coolant Temp. Drive Slowly” displayed Drive slowly to reduce engine load until you can find a safe place to stop the vehicle and wait for the engine to cool down.

“Excessive Engine Coolant Temp. Stop the Vehicle in a Safe Location” displayed
This indicates the possibility of overheating. Park the vehicle in a safe place immediately and stop the engine. Refer to Overheating.

CAUTION
Do not drive the vehicle with the high engine coolant temperature warning light illuminated. Otherwise, it could result in damage to the engine.

Power Steering Malfunction Indication/Indicator Light

The message is displayed if the electric power steering has a malfunction. If the message is displayed, stop the vehicle in a safe place and do not operate the steering wheel. There is no problem if the indication turns off when the engine is restarted after some time has passed. If the indication displays even after the engine is restarted, contact an Authorized Mazda Dealer if the message is displayed continuously.

NOTE

• If the message is displayed, the power steering will not operate normally. In this case, the steering wheel can still be operated, however, the operation may feel heavy compared to normal, or the steering wheel could vibrate when turning.
• Repeatedly jerking the steering wheel left and right while the vehicle is stopped or moving extremely slowly will cause the power steering system to go into protective mode which will make the steering feel heavy, but this does not indicate a problem. If this occurs, park the vehicle safely and wait several minutes for the system to return to normal.

ABS Warning Indication/Warning Light

If the ABS warning light stays on while you’re driving, the ABS control unit has detected a system malfunction. If this occurs, your brakes will function normally as if the vehicle had no ABS. Should this happen, consult an Authorized Mazda Dealer as soon as possible.

NOTE

• When the engine is jump-started to charge the battery, uneven rpm occurs and the ABS warning light may illuminate. If this occurs, it is the result of the weak battery and does not indicate an ABS malfunction. Recharge the battery.
• The brake assist system does not operate while the ABS warning light is illuminated.

Master Warning Indication

The indication displays if the system has a malfunction. Check the reason for the indication displaying on the center display or multi-information display. Refer to If a Warning Light Turns On or Flashes.

Brake Control System Warning Indication/Warning Light

The warning light illuminates when the system has a malfunction. Have your vehicle inspected at an Authorized Mazda Dealer.

Electric Parking Brake (EPB) Indication/Indicator Light

This warning has the following functions:

Parking brake warning/Indicator light inspection
The light illuminates when the parking brake is applied with the ignition switched to START or ON. It turns off when the parking brake is released.

When the light is flashing
The light flashes if the Electric Parking Brake (EPB) has a malfunction. If the light remains flashing even if the Electric Parking Brake (EPB) switch is operated, consult an Authorized Mazda Dealer as soon as possible.

Brake Override Warning Indication

This message is displayed when the accelerator pedal and brake pedal are depressed at the same time while driving. Release the accelerator pedal and depress the brake pedal.

Check Engine Indication/Light
If this light illuminates while driving, the vehicle may have a problem. It is important to note the driving conditions when the light illuminated and consult an Authorized Mazda Dealer.
The check engine light may illuminate in the following cases:

• The engine’s electrical system has a problem.
• The emission control system has a problem.
• The fuel-filler cap is missing or not tightened securely.
• The fuel tank level being very low or approaching empty.

If the check engine light remains on, or it flashes continuously , do not drive at high speeds and consult an Authorized Mazda Dealer as soon as possible.

WARNING

If the check engine light turns on, do not disconnect the battery cables
If the battery cables are disconnected and then reconnected, the engine could be damaged and catch on fire.

Automatic Transmission Warning Indication/Warning Light*The indication/light illuminates when the transmission has a problem.

CAUTION
If the automatic transmission warning indication/light illuminates, the transmission has an electrical problem. Continuing to drive your Mazda in this condition could cause damage to your transmission. Consult an Authorized Mazda Dealer as soon as possible.

AWD Warning Indication/Warning Light*

“AWD Malfunction. Front Wheel Drive Only. Have the Vehicle Inspected” is displayed/When the light is turned on
The indication is displayed/the light turns on under the following conditions. The system may have a malfunction. Have the vehicle checked at an Authorized Mazda Dealer.

• When there is a malfunction in the AWD system.
• “Excessive AWD System Load. Drive Slowly Until Warning Light Turns Off. Vehicle Now in Front Wheel Drive” is displayed/When the light is flashing The indication is displayed/the light flashes under the following conditions. Park the vehicle in a safe place and check that the warning indication light turns off/ the warning light stops flashing, and then drive the vehicle. Contact an Authorized Mazda Dealer if the indication is continuously displayed.
• When the differential oil temperature is excessively high.
• When there is a large difference between the front and rear wheel rotation, such as when trying to remove the vehicle from mud.

“Mismatched Tire Diameters. Vehicle Now in Front Wheel Drive” is displayed/When the light is turned on

The indication is displayed/the light turns on under the following conditions. Inspect the tire sizes or tire pressures on all 4 wheels. Contact an Authorized Mazda Dealer if the indication remains on or the warning light remains illuminated.

• When any of the tire diameter is different.
• When any of the tire pressure is incorrect.

TCS/DSC Indication/Indicator Light (Turns on)If the light stays on, the TCS, DSC or the brake assist system may have a malfunction and they may not operate correctly. Take your vehicle to an Authorized Mazda Dealer.

Air Bag/Front Seat Belt Pretensioner System Warning Indication/Warning Light

A system malfunction is indicated if the warning light constantly flashes, constantly illuminates or does not illuminate at all when the ignition is switched ON. If any of these occur, consult an Authorized Mazda Dealer as soon as possible. The system may not operate in an accident.

WARNING
Never tamper with the air bag/pretensioner systems and always have an Authorized Mazda Dealer perform all servicing and repairs:
Self-servicing or tampering with the systems is dangerous. An air bag/pretensioner could accidentally activate or become disabled causing serious injury or death.

Tire Pressure Monitoring System (TPMS) Warning Indication/Warning Light (Flashing)

If there is a problem with the TPMS or the voltage of a tire pressure sensor decreases, the TPMS warning light flashes and a message is displayed on the multi-information display. Have your vehicle inspected by an Authorized Mazda Dealer.

WARNING

Do not drive the vehicle at high speeds if the TPMS warning light turns on or flashes:
Driving the vehicle at high speeds while the TPMS warning light is turned on or flashing is dangerous because the brake performance and the steering wheel operability will be reduced. If the vehicle is driven at high speeds or the brakes are suddenly applied, it could lead to an accident. Gradually apply the brakes to lower the vehicle’s speed. Do not ignore the TPMS warning light when it is turned on or flashing: Continuing to drive the vehicle while ignoring the illumination/flashing of the TPMS warning light is dangerous because a tire may burst which could lead to an accident. Take appropriate measures as soon as possible.

KEY Warning Indication/Warning Light (Red)

“Keyless Entry System Malfunction. Have the Vehicle Inspected” is displayed
This message is displayed if the advanced keyless entry & push button start system has a problem. Contact an Authorized Mazda Dealer.

CAUTION
If the message is indicated, or the push button start indicator light (amber) flashes, the engine may not start. If the engine cannot be started, try starting it using the emergency operation for starting the engine, and have the vehicle inspected at an Authorized Mazda Dealer as soon as possible. Refer to Emergency Operation for Starting the Engine.

“Key Not Detected” is displayed

• If the presence of the key cannot be detected (dead battery, battery malfunction, no key), it is displayed when the driver attempts to start the engine (push button start operation, brake pedal depression).
  Displayed when it is determined that a key that was in the vehicle has been removed from the vehicle. (Key taken out warning. Other than IG-OFF).

Security Indicator Light

If the security indicator light flashes continuously while you are driving, do not shut off the engine. Go to an Authorized Mazda Dealer and have it checked. If the engine is shut off while the indicator light is flashing, you will not be able to restart it. Make sure the key is within the operational range for signal transmission. Switch the ignition off, and then restart the engine. If the engine does not start after 3 or more tries, contact an Authorized Mazda Dealer.

NOTE
Because the electronic codes are reset when the immobilizer system is repaired, the keys are needed. Make sure to bring all the keys to an Authorized Mazda Dealer so that they can be programmed.
7-34 *Some models.

High Beam Control System (HBC) Warning Indication/Warning Light (Amber)

The light remains turned on if there is a problem with the system. Have your vehicle inspected at an Authorized Mazda Dealer.

i-ACTIVSENSE Warning Indication/Warning Light

The indication displays if the system has a malfunction. Check the reason for the indication displaying on the center display or multi-information display. Refer to If a Warning Light Turns On or Flashes.

Exterior Light Warning Indication/Warning LightThis light illuminates if there is a malfunction in the exterior lights (except license plate lights). Have your vehicle inspected by an Authorized Mazda Dealer.

CAUTION
Do not drive the vehicle while an exterior light has a malfunction. Poor visibility, and not being able to signal braking and turns may cause an accident. In addition, if the vehicle is driven with the lights not turned on, it may conflict with laws and regulations due to poor maintenance.

Low Fuel Warning Indication/Warning LightThe warning indication/warning light displays/turns on when the ignition is switched ON and the remaining fuel is about 9 L (2.3 US gal, 1.9 Imp gal) or the remaining distance to empty is 50 km (31 miles) or shorter. The warning light flashes when the vehicle continues to be driven with the warning indication/warning light displayed/turned on and the remaining fuel in the tank is near empty.

NOTE
The light illumination timing may vary because fuel inside the fuel tank moves around according to the driving conditions and the vehicle posture.

Action to be taken
Add fuel. If the light is flashing, refuel as soon as possible.

Check Fuel Cap Warning Indication/Warning Light

If the check fuel cap warning light illuminates while driving, the fuel-filler cap may not be installed properly.

Action to be taken
Stop the engine and reinstall the fuel-filler cap. Refer to Refueling.

Engine Oil Level Warning Indication/Warning Light

This warning light indicates that the engine oil level is around the MIN mark.

CAUTION
Do not continue to drive the vehicle with the engine oil level warning indication/warning light displayed/turned on. If the vehicle continues to be driven with an insufficient amount of engine oil, it could cause damage to the engine.

Action to be taken
Add 1 L (0.26 US gal, 0.22 Imp gal) of engine oil.

Seat Belt Warning Indication/Warning Light (Front seat)

The seat belt warning light turns on if the driver or front passenger’s seat is occupied and the seat belt is not fastened with the ignition switched ON. If the driver or front passenger’s seat belt is unfastened (only when the front passenger’s seat is occupied) and if the vehicle is driven at about 20 km/h (12 mph) or faster, or about 10 km/h (6 mph) or faster for a continuous 30 seconds, with the seat belt unfastened, the warning light flashes for a certain period. After a short time, the warning light stops flashing, but remains illuminated.

NOTE

• The warning light flashes for about 6 seconds if the driver or front passenger’s seat is not fastened when the ignition is switched ON.(Except Mexico)
  Placing heavy items on the front passenger’s seat may cause the front passenger’s seat belt warning function to operate depending on the weight of the item.\
• To allow the front passenger occupant classification sensor to function properly, do not place and sit on an additional seat cushion on the front passenger’s seat. The sensor may not function properly because the additional seat cushion could cause sensor interference.
  If a small child is seated on the front passenger’s seat, the warning light may not operate.

Action to be taken
Fasten the seat belts.

Seat Belt Warning Light (Rear seat)(Red)

If the rear seat belts are not fastened while the ignition is switched ON , the driver and the passenger are alerted by the warning light.
The warning light operates even if there is no passenger on the rear seat.

NOTE
If a rear seat belt is not fastened by a certain period of time after the engine has been started, the warning light turns off.

Action to be taken
Fasten the seat belts.

Low Washer Fluid Level Warning Indication/Warning Light

This warning light indicates that little washer fluid remains.

Action to be taken
Add washer fluid.

Door-Ajar/Trunk lid-Ajar/Liftgate-Ajar Warning Indication/Warning Light

The light turns on if any door/trunk lid/liftgate is not closed securely.

Action to be taken
Close the door/trunk lid/liftgate securely.

Tire Pressure Monitoring System (TPMS) Warning Indication/Warning Light (Turns on)

If a tire pressure decreases below the specified air pressure, the TPMS warning light turns on. At the same time, a message and the tire pressure of each tire are displayed on the multi-information display alternately. In addition, the tire (s) with low air pressure is displayed in yellow.

WARNING

Do not drive the vehicle at high speeds if the TPMS warning light turns on or flashes:
Driving the vehicle at high speeds while the TPMS warning light is turned on or flashing is dangerous because the brake performance and the steering wheel operability will be reduced. If the vehicle is driven at high speeds or the brakes are suddenly applied, it could lead to an accident. Gradually apply the brakes to lower the vehicle’s speed.
Do not ignore the TPMS warning light when it is turned on or flashing: Continuing to drive the vehicle while ignoring the illumination/flashing of the TPMS warning light is dangerous because a tire may burst which could lead to an accident. Take appropriate measures as soon as possible.

NOTE
While the TPMS is learning the tire positions, such as immediately after a tire position has been changed, the tire pressure at the tire position prior to it being changed is displayed until the system completes the learning. For this reason, the tire pressures displayed for the tire positions may be different from the actual tire pressures at the tire positions.

Action to be taken
Adjust the tire pressures to the appropriate pressures Refer to Tire Inflation Pressure.

CAUTION

• Adjust the tire pressures while the tires are cool. Because the air pressure in the tires fluctuates depending on the temperature, before adjusting the tire pressures, let the vehicle sit for an hour or drive it only within a 1.6 km (1 mile) distance. If the tire pressures are adjusted while the tires are warm, the tire pressures may decrease below the specified air pressure after cooling down which could turn on the warning light. In addition, because the air pressure in the tires decreases when the ambient temperature is low, if the ambient temperature increases, an illuminated TPMS warning light may turn off. Under any circumstances, always adjust the tire pressures while the tires are cool.
• After adjusting the tire pressures, the TPMS warning light turns off. If the TPMS warning light does not turn off, drive the vehicle at a speed of about 25 km (16 mph) or faster for 3 minutes or longer and make sure the warning light turns off.

If the TPMS warning light remains on even after adjusting the tire pressures, one of the tires may have a puncture.

KEY Indicator Light (Green)(Flashing)

“Low Key Fob Battery. Replace Battery” is displayed/When the light is flashing
When the key battery is low, the indication is displayed when the ignition is switched OFF.

Action to be taken
Replace the key battery.

Message Indicated on Multi-information Display
If there is a notification from the vehicle, a message is displayed on the multi-information display. Check the information and take the necessary action.

 

1. Multi-information display
   If the warning light turns on/flashes simultaneously or a symbol is indicated on the display, check the information regarding the warning light or symbol. Refer to If a Warning Light Turns On or Flashes.

Display*1*2	Content	Action to be taken
Depress Brake Pedal. Brake Hold Disabled	This message is indicated when there is a problem with the brake related system while the vehicle is being held in a stop position by the AUTOHOLD function.	Depress the brake pedal. Cancel the AUTOHOLD function and have your vehicle inspected at an Authorized Mazda Dealer.
Steep Slope. Continue Pressing Brake Pedal to Hold Stopped Position	This message indicates the possibility of the vehicle not being held in the stopped position by the AUTOHOLD function, such as on steep slopes.	Depress and hold your foot on the brake pedal.
Depress Brake Pedal and Operate Switch to Re- lease Elec. Parking Brake	This message is indicated when the Electric Parking Brake (EPB) switch is operated without depressing the brake pedal.	Operate the Electric Parking Brake (EPB) switch while depressing the brake pedal.
Depress Brake Pedal and Operate Switch to Re- lease	This message is indicated when the cancel operation is done without de- pressing the brake pedal while the vehicle is being held in the stopped position by the AUTOHOLD function.	Cancel the AUTOHOLD function stop hold control while depressing the brake pedal.

Display*1*2	Content	Action to be taken
Mazda Radar Cruise Control Canceled. Drive Safely	This message is indicated when the Mazda Radar Cruise Control (MRCC), Mazda Radar Cruise Con- trol with Stop & Go function (MRCC with Stop & Go function), and the Traffic Jam Assist (TJA) have been can- celed other than by the driver.	Have your vehicle inspected by an Authorized Mazda Dealer.
Distance & Speed Alert Operation Canceled Drive Safely	This message is indicated when the Distance & Speed Alert (DSA) have been canceled other than by the driv- er.	Have your vehicle inspected by an Authorized Mazda Dealer.
Cruise Control Operation Canceled. Drive Safely	This message is indicated when the Cruise Control have been canceled other than by the driver.	Have your vehicle inspected by an Authorized Mazda Dealer.
Emergency Braking Activated. Depress Brake Pedal to Hold Stop	This message is indicated after the Smart Brake Support (SBS) brakes operate and when the Smart Brake Sup- port (SBS) is canceled.	Depress the brake pedal.
Touch Key Fob to Push Button Start Switch	This message is indicated when the key battery is weak (battery dead or damaged key).	Touch the key against push button start to start the engine.   Refer to Engine Start Function When Key Battery is Dead on page 4-8.
Depress Brake Pedal to Start Vehicle	This message is indicated when the push button start is pressed without depressing the brake pedal.	When starting the engine, press the push button start with the brake pedal depressed.
Depress Clutch Pedal to Start Vehicle	This message is indicated when the push button start is pressed without depressing the clutch pedal.	When starting the engine, press the push button start with the clutch pedal depressed.
Check Gear Selector Lever Position	This message is indicated when the selector lever is shifted to the P or R position while driving.	Check the selector lever position.
Close Door and Fasten Seat Belt	This message is indicated when AU- TOHOLD is about to operate and a door is opened or a seat belt is unfastened.	When the AUTOHOLD is turned on, close the doors and fasten seat belts.
Wiper Blades Must Be on Windshield Before Operating	This message is indicated when the ignition is switched ON with the wiper arms at the service positions.	Return the wiper arms to the initial positions.

Display*1*2	Content	Action to be taken
Windshield Wiper Range of Motion Reduced. Re- move Obstruction(s)	This message is indicated when there is snow or dirt accumulation on the windshield and the wiper operation range is narrowed.	Remove foreign matter from the windshield.
Vehicle Not Switched Off	This message is indicated when the driver’s door is opened without switching the ignition OFF.	Switch the ignition OFF before leaving the vehicle.
Gear Selector Lever Not in Park	Displays when the push button start is pressed while the selector lever is in a position other than P, and the ignition is switched to ACC.	Shift the selector lever to the P position and then switch the ignition OFF.
Excessive Transmission Temperature. Drive Slowly	This message is indicated when the internal temperature of the automatic transmission is high.	Drive slowly to reduce load on the automatic transmission.
Excessive Transmission Temp. Stop Vehicle in a Safe Location	This message is indicated when the automatic transmission fluid temperature is abnormally high.	Park the vehicle in a safe place immediately and contact an Authorized Mazda Dealer.

1.  A pop-up is displayed when a warning occurs.
2. One screen displays four rows. If the entire message cannot be displayed on the screen, it switches to another screen.

Warning Sound is Activated

Lights-On Reminder
The lights-on reminder is operable when the time setting*1 of the auto headlight off function is off. If the ignition is switched OFF with the exterior lights turned on and the driver’s door is opened, a sound is activated.
Operate the headlight switch to turn off the exterior lights.
If the light switch is left on, the auto headlight off function automatically turns off the lights about 30 seconds after switching the ignition off. The time setting can be changed. Refer to the Settings section in the Mazda Connect Owner’s Manual.

NOTE

• When the ignition is switched to ACC, the “Ignition Not Switched OFF (STOP) Warning Beep” (page 7-43) overrides the lights-on reminder.
• A personalized function is available to change the sound volume for the lights-on reminder.
  Refer to the Settings section in the Mazda Connect Owner’s Manual.

Seat Belt Warning Beep Front seat
Except Mexico

If the driver’s seat belt is not fastened when the ignition is switched ON, a beep sound will be heard for about 6 seconds. If the driver or the front passenger’s seat belt is not fastened and if the vehicle is driven at about 20 km/h (12 mph) or faster, or about 10 km/h (6 mph) or faster for a continuous 30 seconds, with the seat belt unfastened, a sound is activated continuously for a certain period. Until a seat belt is fastened or a given period of time has elapsed, the beep sound will not stop even if the vehicle speed falls below 20 km/h (12 mph).

NOTE

• To allow the front passenger occupant classification sensor to function properly, do not place and sit on an additional seat cushion on the front passenger’s seat. The sensor may not function properly because the additional seat cushion could cause sensor interference.
• If a small child is seated on the front passenger’s seat, the warning beep may not operate.

Mexico
If the vehicle speed exceeds about 20 km/h (12 mph) with the driver or front passenger’s seat belt unfastened, a warning beep sounds continuously. If the seat belt remains unfastened, the beep sound stops once and then continues for about 90 seconds. The beep stops after the driver or front passenger’s seat belt is fastened. Until a seat belt is fastened or a given period of time has elapsed, the beep sound will not stop even if the vehicle speed falls below 20 km/h (12 mph).

NOTE

• Placing heavy items on the front passenger’s seat may cause the front passenger’s seat belt warning function to operate depending on the weight of the item.
• To allow the front passenger seat weight sensor to function properly, do not place and sit on an additional seat cushion on the front passenger’s seat. The sensor may not function properly because the additional seat cushion could cause sensor interference.
• If a small child is seated on the front passenger’s seat, the warning beep may not operate.

Rear seat
The warning beep only sounds if a seat belt is unfastened after being fastened.

Ignition Not Switched Off (STOP) Warning Beep
If the driver’s door is opened with the ignition switched to ACC, a beep will be heard continuously in the cabin to notify the driver that the ignition has not been switched OFF (STOP). Under this condition, the keyless entry system will not operate, the vehicle cannot be locked, and the battery voltage will be depleted.

Key Removed from Vehicle Warning Beep

Vehicles with advanced keyless function
If the key is taken out of the vehicle while the ignition is switched to ACC or ON, and all the doors are closed, a sound is activated 6 times outside of the vehicle and a sound is activated 1 time in the vehicle.

Vehicles without advanced keyless function
If the key is taken out of the vehicle while the ignition is switched to ACC or ON, and all the doors are closed, a sound is activated 1 time in the vehicle.

NOTE
Make sure that you leave the vehicle while carrying the key, or switch the ignition OFF.

Touch Sensor Inoperable Warning Beep (With the advanced keyless function)
A warning beep is activated to notify the driver that the doors are not locked when all of the following conditions are met:

• The ignition is switched OFF.
• All the doors and liftgate are not fully closed.
• The lock is operated 3 times within 5 seconds.

Check the ignition and whether the doors and liftgate are open or closed, and then operate the lock again.

Liftgate Door-lock Switch Inoperable Warning Beep
When the door-lock switch on the liftgate is pressed under any of the following conditions, a warning sound is activated.

• The ignition is switched to a position other than OFF.
• Any door is open.

Make sure that none of the above conditions are present, and then press the door-lock switch again.

Key Left-in-luggage Compartment/Trunk Warning Beep (With the advanced keyless function)
If the key is left in the luggage compartment/trunk with all the doors locked and the liftgate/trunk lid closed, a beep will be heard outside for about 10 seconds to notify the driver that the key is in the luggage compartment/trunk. In this case, take out the key by pressing the electric liftgate/trunk lid opener and opening the liftgate/trunk lid. The key taken out of the luggage compartment/trunk may not operate because its functions have been temporarily stopped. To restore the key’s functions, perform the applicable procedure .

Key Left-in-vehicle Warning Beep (With the advanced keyless function)
If all the doors and luggage compartment/trunk are locked using another key while the key is left in the cabin, the beep which sounds outside of the vehicle will be heard for about 10 seconds to notify the driver that the key is in the cabin. In this case, take out the key by opening the door. A key taken out of the vehicle using this method may not operate because its functions have been temporarily stopped. To restore the key’s functions, perform the applicable procedure.

Low Fuel Warning Beep
When the low fuel warning light flashes, a warning beep is activated once at the same time.

Brake Override Warning Beep
A warning beep is activated when the accelerator pedal and brake pedal are depressed at the same time while driving. Only depress the brake pedal.

Shift Position Warning Beep
A sound is activated when the push button start is pressed while the selector lever is in a position other than P, and the ignition is switched to ACC. Check the selector lever position.

Electric Parking Brake (EPB) Warning Beep

• The vehicle is driven with the parking brake Applied
• The Electric Parking Brake (EPB) switch is pulled while the vehicle is driven.
• You attempt to start driving the vehicle while the conditions for releasing the Electric Parking Brake (EPB) automatically have not been met.

AUTOHOLD Warning Beep
Warning light flashes/message is displayed and beep sound is activated simultaneously for about 5 seconds when using AUTOHOLD function or when AUTOHOLD switch is operated. Because a problem with AUTOHOLD function has occurred, AUTOHOLD function does not operate even if AUTOHOLD switch is operated.
If the warning light flashes/message is displayed and the beep sound is activated simultaneously, have your vehicle inspected at an Authorized Mazda Dealer.

Vehicle Problem Warning Beep
If any of the following problems occur, a warning beep is activated. Check the information regarding the warning indication in the instrument cluster or on the center display.

• Automatic transmission problem
  Increase in automatic transmission internal temperature
  Brake fluid amount decrease
• Engine oil level sensor problem
• Electric Parking Brake (EPB) problem
• Engine hydraulic pressure decrease
• Engine coolant temperature increase
• Engine system problem

Blind Spot Monitoring (BSM) System Warning Beep
The Blind Spot Monitoring (BSM) warning beep operates when the turn signal lever is operated to the side where the Blind Spot Monitoring (BSM) warning light is illuminated.

Front Cross Traffic Alert (FCTA) Warning Beep
The Front Cross Traffic Alert (FCTA) warning beep is activated if there is a possibility of collision with a vehicle approaching from the front on the left and right sides of the vehicle.

Rear Cross Traffic Alert (RCTA) Warning Beep
The Rear Cross Traffic Alert (RCTA) warning beep is activated if there is a possibility of collision with a vehicle approaching from the rear on the left and right sides of the vehicle.

Lane Departure Warning Sound*
While the system is operating, if the system determines that the vehicle may depart from the lane, it sounds a warning sound.

NOTE
The volume of the Lane Departure Warning System (LDWS) warning sound can be changed. Refer to the Settings section in the Mazda Connect Owner’s Manual.

Mazda Radar Cruise Control (MRCC) System Warnings*
The Mazda Radar Cruise Control (MRCC) system warnings notify the driver of system malfunctions and cautions on use when required. Check based on the beep sound.

Warning beep type

1. The beep sounds 1 time while the Mazda Radar Cruise Control (MRCC) is operating
2. The beep sounds intermittently while the Mazda Radar Cruse Control (MRCC) is operating.

Notification content

1. The vehicle speed is slower than 25 km/h (16 mph) and the Mazda Radar Cruise Control (MRCC) system has been canceled.
2. The distance between your vehicle and the vehicle ahead is too close. Check the safety of the surrounding area and reduce vehicle speed.

Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) System Warnings

The Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) system warnings notify the driver of system malfunctions and cautions on use when required. Check based on the beep sound.

Warning beep type

1. The beep sounds 1 time while the Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) is operating
2. The beep sounds intermittently while the Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) is operating.

Notification content

1. If a malfunction occurs in the system, make sure that the Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) has been canceled.
2. The distance between your vehicle and the vehicle ahead is too close. Check the safety of the surrounding area and reduce vehicle speed.

Excessive Speed Warning
If the vehicle speed exceeds the speed limit sign displayed in the active driving display/instrument cluster, the area around the speed limit sign flashes in amber and the warning sound is activated at the same time. If the vehicle speed continues to exceed the displayed speed limit sign, the indication stops flashing and remains on.

Collision warning
If there is a possibility of a collision with a vehicle ahead, a warning sound is activated at the same time as the warning indications are displayed in the instrument cluster or active driving display.

Door-ajar Warning Beep
A warning beep is actived if the vehicle is driven with any door or liftgate ajar. Drive the vehicle after closing the doors and liftgate.

When Liftgate/Trunk Lid Cannot be Opened

When Liftgate/Trunk Lid Cannot be Opened
If the battery is dead, the liftgate/trunk lid cannot be unlocked and opened. In this case, the liftgate/trunk lid can be unlocked by taking care of the dead battery situation Refer to Jump-Starting. If the liftgate/trunk lid cannot be unlocked even if the dead battery situation has been resolved, the electrical system may have a malfunction. In this case, the liftgate/trunk lid can be opened using the following procedure as an emergency measure.
(5–door)

1.  Wrap the end of a flathead screwdriver in a cloth and remove the cover on the interior surface of the liftgate using it.
   
2. Turn the lever to the right to unlock the liftgate.
   (4–door)
3. Open the cover.
   
4. (With theft-prevention cover) Open the cap.
   
5. (With theft-prevention cover)
   Turn the screw counterclockwise and remove it.
   
6. (With theft-prevention cover)
   Remove the theft-prevention cover.
7. Move the lever to the left to fold the seatback.
8. Move the lever to the left to open the trunk lid.

(Type A)

(Type B)

After performing this emergency measure, have the vehicle inspected at an Authorized Mazda Dealer as soon as possible.

If the Active Driving Display Does Not Operate*
If the active driving display does not operate, switch the ignition off and then restart the engine. If the active driving display does not operate even with the engine restarted, have the vehicle inspected at an Authorized Mazda Dealer.

FAQs

Useful Links

View Full User: 2021 Mazda3 User Manual | Auto User Guide
Download Link: Owner’s – Manuals, Guides, Maintenance Schedules | Mazda USA