2025 FORD F-650 Warning Lights and Indicator Owner’s Manual
The 2025 Ford F-650 is a standout commercial truck because to its modern safety features and powerful performance, which includes a wide range of warning lights and indicators. By informing drivers about potential risks, mechanical problems, and system statuses, these indicators play a crucial role in communication and improve efficiency and safety while driving. We’ll go over the purpose and meaning of the warning lights and indicators on the 2025 Ford F-650 in this succinct guide, giving drivers the information they need to drive safely.
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F-650 WARNING LAMPS AND INDICATORS
The following warning lamps and indicators alert you to a vehicle condition that may become serious. Some lamps illuminate when you start your vehicle to make sure they work. If any lamps remain on after starting your vehicle, refer to the respective system warning lamp for further information.
Note: Some warning indicators appear in the information display and operate the same as a warning lamp but do not illuminate when you start your vehicle.
Anti-Lock Braking System
If it illuminates when you are driving, this indicates a malfunction. Your vehicle continues to have normal braking without the anti-lock brake system function. Have your vehicle checked as soon as possible.
Automatic Regeneration Control (If Equipped)
Illuminates when you switch it off.
Battery
If it illuminates when driving, it indicates a malfunction. Switch off all unnecessary electrical equipment and have the system immediately checked.
Brake System
WARNING: Driving your vehicle with the warning lamp on is dangerous. A significant decrease in braking performance may occur. It may take you longer to stop your vehicle. Have your vehicle checked as soon as possible. Driving extended distances with the parking brake engaged can cause brake failure and the risk of personal injury.
Indicates low brake fluid level or a brake system malfunction. Have the system immediately checked.
Check Suspension (If Equipped)
Illuminates when you press the air suspension dump switch.
Cruise Control
Illuminates when you switch on this feature.
Diesel Exhaust Fluid (If Equipped)
Illuminates with the key in the ON position, when the fluid is contaminated or the level falls below 1.0 gal (3.8 L). Refill the tank or, at a minimum, add at least 1.0 gal (3.8 L) in the tank.
Direction Indicator
Illuminates when you switch on the left or right direction indicator, or when you switch on the hazard warning flashers. Check for a burned out bulb if the indicators stay on or flash faster.
Door Ajar
Displays when the ignition is on and any door is not completely closed.
Electronic Locking Differential (If Equipped)
Illuminates when using the electronic locking differential.
Engine Coolant Temperature
If it illuminates when your vehicle is moving, this indicates that the engine is overheating. Stop your vehicle as soon as it is safe to do so and switch the engine off. Have your vehicle checked as soon as possible. idk
Engine Oil Pressure
If it illuminates with the engine running, or when you are driving, this indicates a malfunction. Stop your vehicle as soon as it is safe to do so and switch off the engine. Check the engine oil level.
Note: Do not resume your journey if it illuminates despite the level being correct. Have the system checked as soon as possible.
Exhaust Brake On (If Equipped)
The exhaust brake indicator light illuminates when you switch the exhaust brake on.
Fasten Seatbelt
Illuminates and a tone sounds to remind you to fasten your seatbelt.
High Beam
Illuminates when you switch on the high beam headlamps. It flashes when you use the headlamp flasher.
Hydromax
If the light illuminates and remains on when the key is in the on position or the engine is running, this indicates inadequate hydraulic booster pressure or reserve pump system failure. Stop the vehicle as soon as possible and have your vehicle checked.
Low Fuel Level
Illuminates when the fuel level is low or the fuel tank is nearly empty. Refuel as soon as possible.
Parking Brake Warning
Briefly illuminates when you switch the ignition to the on position, with the engine off. It also illuminates when you apply the parking brake. If the park brake lamp does not illuminate at these times, seek immediate service. Vehicles with the power parking brake option: If the park brake warning lamp begins to blink after setting the parking brake, this may indicate a failure in the parking brake system. Have the system checked as soon as possible. Driving extended distances with the parking brake engaged can cause brake failure and the risk of personal injury.
Parking Lamps
Illuminates when you switch the low beam headlamps or the parking lamps on.
Powertrain Malfunction/Reduced Power/Electronic Throttle Control (If Equipped)
Illuminates in the event of a powertrain fault. Have your vehicle checked as soon as possible.
Service Engine Soon
If it illuminates when the engine is running, the on-board diagnostics system notifies you that the emission control system requires service. If it flashes, engine misfire may be occurring. An increase in exhaust gas temperatures can damage the catalytic converter or other vehicle components. Avoid heavy acceleration and deceleration and have your vehicle immediately serviced. It illuminates when you switch the ignition on prior to engine start to check the bulb and to indicate whether your vehicle is ready for Inspection and Maintenance (I/M) testing. Normally, it illuminates until the engine is cranked and turns off if no malfunctions are present. However, if after 15 seconds it flashes eight times, this indicates that your vehicle is not ready for inspection and maintenance (I/M) testing.
Stability Control Indicator (If Equipped)
Flashes during operation. If it does not illuminate when you switch the ignition on, or remains on when the engine is running, this indicates a malfunction. Have your vehicle checked as soon as possible.
Traction Control Indicator
Flashes during a traction control event. If it does not illuminate when you switch the ignition on, or remains on when the engine is running, this indicates a malfunction. Have your vehicle checked as soon as possible.
Traction Control System Off
Illuminates when you switch the system off.
Trailer Anti-Lock Brake System (ABS)
Briefly illuminates when you switch on the ignition, and only when you connect a PLC trailer or a PLC diagnostic tool. If the light fails to illuminate, remains on after you start the vehicle or continues to flash, have the system immediately serviced.
Transmission Tow/Haul
Illuminates when you switch on tow/haul. If the light steadily flashes, have the system immediately serviced, damage to the transmission could occur.
Two Speed Axle (If Equipped)
The two-speed axle indicator comes on when you switch the low axle range on.
Wait to Start (If Equipped)
Illuminates when you switch the ignition on as part of the pre-start system. Wait until the wait to start indicator turns off before attempting to start the vehicle.
WARNING: Do not use starting fluid, for example, ether, in the air intake system. Such fluid could cause immediate explosive damage to the engine and possible personal injury.
Water in Fuel (If Equipped)
Illuminates when the fuel filter/water separator has a significant quantity of water in it. If the light illuminates when the engine is running, stop the vehicle as soon as safely possible, shut off the engine, then drain the fuel filter/water separator. Allowing water to stay in the system could result in extensive damage to, or failure of, the fuel injection system.
WARNING: Do not drain the water-in-fuel separator while the engine is running. Failure to follow this warning may result in fire, serious injury, death or property damage.
AUDIBLE WARNINGS AND INDICATORS
Headlamps On Warning Chime
Sounds when you remove the key from the ignition and open the driver’s door and you have left the headlamps or parking lamps on.
Key in Ignition Warning Chime
Sounds when you open the driver’s door and you have left the key in the ignition.
Parking Brake On Warning Chime
Sounds like you have left the parking brake on and are driving your vehicle. If the warning chime remains on after you have released the parking brake, have the system checked by your authorized dealer immediately.
FAQs
The yellow exclamation point warning light typically signifies a minor issue or maintenance reminder, such as low tire pressure or a loose fuel cap.
The check engine light indicates a potential issue with the engine or emissions system of the 2025 Ford F-650, which should be addressed promptly to prevent further damage.
The red battery warning light indicates a problem with the charging system of the 2025 Ford F-650, such as a faulty alternator or a weak battery, which requires immediate
attention to avoid a breakdown.
The ABS warning light indicates a fault in the anti-lock braking system of the 2025 Ford F-650, which may compromise braking performance in certain situations and should be inspected by a qualified.
The red temperature warning light signals that the engine of the 2025 Ford F-650 is overheating, which can lead to severe damage if not addressed promptly by pulling over safely and allowing the engine to cool down.
The oil pressure warning light indicates low oil pressure in the engine of the 2025 Ford F-650, which can lead to engine damage if ignored, necessitating an immediate check of the oil level and condition.
The yellow traction control light indicates that the traction control system of the 2025 Ford F-650 is actively working to maintain traction and stability, especially in slippery road conditions.
The airbag warning light indicates a fault in the airbag system of the 2025 Ford F-650, which may prevent the airbags from deploying properly in the event of a collision and should be inspected by a qualified.
The green turn signal indicator illuminates when the turn signal lever is activated, signalling to other drivers that the 2025 Ford F-650 is preparing to turn left or right.
The TPMS warning light indicates that one or more tires on the 2025 Ford F-650 have low air pressure, which can affect fuel efficiency, tire wear, and vehicle stability, prompting the need for immediate inflation or repair.
The red brake warning light indicates a problem with the braking system of the 2025 Ford F-650, such as low brake fluid or a malfunctioning brake system component, which requires immediate attention to ensure safe operation.
The yellow oil can warn light typically indicates that the engine oil level in the 2025 Ford F-650 is low, signalling the need for an oil change or topping up the oil level to prevent engine damage.
The green high-beam indicator illuminates when the high-beam headlights of the 2025 Ford F-650 are activated, providing enhanced visibility for the driver in dark or low-light conditions.
The fuel cap warning light indicates that the fuel cap of the 2025 Ford F-650 may not be properly tightened or is missing, potentially causing fuel evaporation or contamination, necessitating immediate inspection and correction.
The red seat belt warning light indicates that one or more occupants of the 2025 Ford F-650 have not fastened their seat belts, prompting them to do so for their safety and legal compliance.
Useful Links
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