Cadillac CT4 2023 Warning Lights, Gauges, and Indicators 

The extensive variety of warning and indication lights on the 2023 Cadillac CT4 is intended to advise drivers about numerous elements of the vehicle’s performance and safety. By warning drivers of possible problems like low fuel, engine troubles, low tire pressure, and more, these lights act as crucial communication tools. The CT4’s warning and indicator lights offer timely information with clear symbols and color coding, enabling drivers to make informed decisions while preserving a safe and easy driving experience. The CT4’s warning and indication lights are essential for improving driver awareness and general vehicle dependability, whether they are used for tracking essential vehicle functions, evaluating safety systems, or monitoring engine performance.

2023 Cadillac CT4 Specs, Price, Features, Mileage and Review

Warning
Warning lights and gauges can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gauges could prevent injury.
Some warning lights come on briefly when the engine is started to indicate they are working. When one of the warning lights comes on and stays on while driving, or when one of the gauges shows there may be a problem, check the section that explains what to do. Waiting to do repairs can be costly and even dangerous.

Instrument Cluster (Base Level and Midlevel

English Base Level and Midlevel Shown, Metric Similar

1. Fuel Gauge 
2. Engine Coolant Temperature Gauge 
3. Speedometer 
4. Driver Information Center (DIC) (Base Level) 
5. Driver Information Center (DIC) (Midlevel) 
6. Driver Information Center (DIC) (Uplevel)
7. Tachometer 

Cluster Menu
There is an interactive display area in the center of the instrument cluster

Base Level Cluster Menu
There is an interactive display area in the center of the instrument cluster.

Press S or T to access the cluster applications. Use the thumbwheel to scroll y or z through the list of available features. Press the thumbwheel to select. Not all applications will be available on all vehicles.

• Info Tiles Selection/Trip Computer/ Maintenance/Driver Assistance: The selected Driver Information Center (DIC) displays can be viewed. 
• Performance
• Audio
• Navigation
• Phone
• Options
• Simplify

If equipped, press the thumbwheel to enter the Performance menu. Scroll through the available items.

Performance Timer: Press the thumbwheel to enter the setup menu. Use the thumbwheel to scroll to select the desired speed segment, then press the thumbwheel to enter the submenu. Use the thumbwheel to confirm the speed segment selection or to reset the best time for that segment. On the next acceleration, the performance timer will record the time. Pressing the thumbwheel while the timer is running will cancel the timer if done before reaching the end of the segment.

Lap Timer (without PDR): Press the thumbwheel when Lap Timer is displayed to start, stop, or reset the lap timer. Press the thumbwheel while the Lap Timer page is active to start the timer. If the lap timer is active, pressing the thumbwheel will stop the current lap timer and start a new lap. Pressing the thumbwheel within 10 seconds after completing the last lap (Stop Lap Timer option is displayed), and the Lap Timer will stop. Press the thumbwheel after the lap timer is stopped to reset the timer, or to view the lap history. A maximum of 16 laps can be stored.

Lap Timer (with PDR): The lap times recorded with the PDR system will automatically be displayed in this window. This only happens if a track has been selected in the PDR system and a video recording is started. 

Friction Bubble: A four-quadrant visual display, indicative of the four corners of the car, with a “bubble” showing where the most inertia is being exerted on the vehicle.

Launch Control: If equipped, the Launch Control display allows the driver to adjust the parameters of the Launch Control System. Use the right steering wheel control to open and scroll through the different items and displays. Press o to access the cluster application’s Use w or x through the list of available applications. Not all applications will be available on all vehicles.

• Info App. This is where the selected Driver
• Information Center (DIC) displays can be viewed. 
• Options

Options
Press V to select the Options app, then press p to enter the Options menu. Use w or x to scroll through items in the Options menu.

Units: Press p while Units is displayed to enter the Units menu. Choose English or Metric units by pressing V while the desired item is highlighted.

Info Pages: Press p while Info Pages is displayed to enter the Info Pages menu and select the items to be displayed in the Info app.

Speed Warning: The Speed Warning display allows you to set a speed not to be exceeded. To set, press p when Speed Warning is displayed. Scroll w or x to adjust the value. Press V to set the speed. Once the speed is set, this feature can be turned off by pressing V while viewing this page. If the selected speed limit is exceeded, a pop-up warning is displayed with a chime.

Audio
Use w or x to scroll through options, browse for music, select from favorites, or change the audio source. In the main view, scroll to change the station or go to the next or previous track.

Navigation
In the Navigation menu, if there is no active route, press V to access Recents or Favorites. If there is an active route, press V to cancel or resume route guidance, mute or unmute voice guidance, or access Recents or Favorites.

Phone
In the Phone menu, if there is no active phone call, view recent calls, scroll through contacts, select from the favorites, or change the phone source. If there is an active call, mute the phone or switch to handset operation.

Options
Use w or x to scroll through items in the Options menu. Press V to select the item. Press o to exit the item.

Display Themes
Press the thumbwheel to enter the Display menu. There are four instrument cluster display configurations to choose from. Sport, Tour, Stealth, and Track (if equipped). The style of the cluster will change depending on the theme selected. The default is linked to Driver Mode. Other display themes can be set. If in My Mode then those displays plus HUD (if equipped) can be set. My Mode is only selectable when in Link to Driver mode.} Stealth Mode is enabled when the Instrument Panel Illumination Control is set to the minimum level. 

Sport: Displays Coolant Temperature, Fuel Gauge, Fuel Range, Compass, Driver Mode Control Light, Odometer, Speed, Tachometer, Electronic Transmission Range, Current Gear, Speed Limit, Info Area, and Interaction Area, and Cruise Control (if engaged).

• Tour: Displays Fuel Gauge, Fuel Range, Compass, Driver Mode Control Light, Odometer, Speed, Tachometer, Electronic Transmission Range, Current Gear, Peak Performance, Speed Limit, Info Area, and Interaction Area, and Cruise Control (if engaged).
• Stealth: Displays Fuel Gauge, Digital Speed, and Tachometer.
• Track: If equipped, displays Coolant Temperature, Fuel Gauge, Driver Mode Control Light, Speed, Tachometer, Electronic Transmission Range, Current Gear, Info Area, and Interactive Area.

Preset info tiles are shown on each layout:

Sport: Time and Temperature, Oil Temperature, Tire Status, Oil Pressure
Track: Oil Pressure, Transmission Fluid Temperature, Tire Status, Oil Temperature
Tour: Time and Temperature
Stealth: None
Speed Warning: Allows you to set a speed not to be exceeded. To set, press V when Speed Warning is displayed. Use w or x to adjust the value. Press V to set the speed. Once the speed is set, this feature can be turned off by pressing the V while viewing this page. If the selected speed limit is exceeded, a pop-up warning is displayed with a chime.

Speed Sign
Shows sign information, which comes from a roadway database in the onboard navigation if equipped.

Units
Press the thumbwheel while Units is displayed to enter the Units menu. Choose US or metric units by pressing the thumbwheel while the desired item is highlighted. A selected mark will be displayed next to the selected item.

Tachometer
If equipped, the Tachometer allows the driver to choose between the traditional tachometer (linear gauge) or the numerical tachometer (shift lights with numerical
Tachometer RPM) when the Track theme is selected.

Tire Pressure
If the tire pressure readings need to be recalibrated at any time, this option initiates the Tire Pressure Relearn function. The selection of relearn opens a pop-up when the thumbwheel is pressed for five seconds. Head-Up Display (HUD) Rotation Press the thumbwheel while Adjust Rotation is highlighted to enter Adjust Mode. Scroll to adjust the angle of the HUD display. Press the thumbwheel to confirm and save the setting. 

Traction & Stability
If equipped, displays the status of the Traction (TSC) and Stability (ESC) control systems. To turn the Traction Control System (TCS) on or off, choose Traction. If equipped, to turn StabiliTrak/Electronic Stability Control (ESC) on or off, choose Stability. 

Software Licenses
Press the thumbwheel while Software Licenses is highlighted to display open-source software information.

Reset To Defaults
Allows the driver to reset to default settings.

Simplify
Press the thumbwheel to enter the Simplify menu. Simplify Mode allows certain features of the instrument cluster to be hidden. These features include info tiles and interactive areas. Using the thumbwheel S or T, except to acknowledge an alert, will exit Simplify Mode. The selected features will stay hidden even  after starting and restarting the vehicle unless Simplify Mode is manually canceled

Speedometer
The speedometer shows the vehicle’s speed in either kilometers per hour (km/h) or miles per hour (mph).

Odometer
The odometer shows how far the vehicle has been driven, in either kilometers or miles.

Trip Odometer
The trip odometer shows how far the vehicle has been driven since the trip odometer was last reset. The trip odometer is accessed and reset through the Driver Information Center (DIC).

Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). For vehicles with the Stop/Start system, when the ignition is on, the tachometer indicates the vehicle status. When pointing to AUTO STOP, the engine is off but the vehicle is on and can move. The engine could auto-start at any time. When the indicator points to OFF, the vehicle is off. When the engine is on, the tachometer will indicate the rpm. The tachometer may vary by several hundred rpm, during Auto Stop mode, when the engine is shutting off and restarting.

Uplevel
The redline of the tachometer adjusts dynamically based on engine temperature. The line displays a lower indication when the vehicle’s odometer value is less than 805 kilometers (500 miles). If equipped, the shift indicators are displayed on the instrument cluster and Head-Up Display (HUD). The shift indicators are only operational when the automatic transmission is in Manual mode, or the vehicle has a manual transmission. When the vehicle engine is less than 70°C (158°F) and the vehicle odometer value is less than 805 kilometers (500 miles) the shift indications are not displayed. A strong visual indicator is displayed as the vehicle approaches the red line. Tour and Sport themes feature shift rings while the Track the me features shift lights accompanied by a numerical tachometer display.

Fuel Gauge

Metric Uplevel Sport Mode Shown, Other Modes Similar

English Uplevel Sport Mode Shown, Other Modes Similar

Metric Base Level and Midlevel

English Base Level and Midlevel

Metric Uplevel

English Uplevel

When the ignition is on, the fuel gauge indicates the approximate amount of fuel left in the tank. There is an arrow near the fuel gauge pointing to the side of the vehicle the fuel door is on. When the indicator nears empty, the low fuel light comes on. There still is a little fuel left, but the vehicle should be refueled soon.

The fuel gauge may:

• Take a little more, or less fuel to fill up than it indicates. For example, the gauge may have indicated the tank is half full, but it actually will take a little more, or less than half the tank’s capacity to fill the tank.
• Moves a little while turning a corner, speeding up, or braking.
• Take a few seconds to stabilize after the ignition is turned on and goes back to empty when the ignition is turned off.

These are normal conditions, none of which indicate a problem with the fuel gauge.

Engine Oil Temperature Gauge (Uplevel only)
This gauge shows the engine oil temperature. If the gauge pointer moves into the high end, it means that the engine oil has overheated. If the vehicle has been operated under normal driving conditions, pull off the road, stop the vehicle, and turn off the engine as soon as possible. 

Engine Coolant Temperature Gauge

Metric Base Level and Midlevel

English Base Level and Midlevel

Metric Uplevel

English Uplevel

This gauge shows the engine coolant temperature
If the pointer moves toward the warning area at the high end of the gauge, the engine is too hot. If the engine coolant has overheated and the vehicle has been operating under normal driving conditions, pull off the road, stop the vehicle, and turn off the engine as soon as possible. 

Voltmeter Gauge (Uplevel only)

When the ignition is on, this gauge indicates the battery voltage. When the engine is running, this gauge shows the condition of the charging system. The gauge can transition from a higher to lower or a lower to higher reading. This is normal. If the vehicle is operating outside the normal operating range, the charging system light comes on. Readings outside the normal operating range can also occur when a large number of electrical accessories are operating in the vehicle and the engine is left idling for an extended period. This condition is normal since the charging system is not able to provide full power at the engine idle. As engine speeds are increased, this condition should correct itself as higher engine speeds allow the charging system to create maximum power. The vehicle can only be driven for a short time with readings outside the normal operating range. If the vehicle must be driven, turn off all accessories, such as the radio and air conditioner, and unplug all chargers and accessories. Readings outside the normal operating range indicate a possible problem in the electrical system. Have the vehicle serviced as soon as possible?

Seat Belt Reminders

Driver Seat Belt Reminder Light
There is a driver seat belt reminder light on the instrument cluster. When the vehicle is started, this light flashes and a chime may come on to remind the driver to fasten their seat belt. Then the light stays on solid until the belt is buckled. This cycle may continue several times if the driver remains or becomes unbuckled while the vehicle is moving. If the driver seat belt is buckled, neither the light nor the chime comes on.

Front Passenger Seat Belt Reminder Light
The vehicle may have a front passenger seatbelt reminder light near the passenger airbag status indicator. When the vehicle is started, this light flashes and a chime may come on to remind passengers to fasten their seat belts. Then the light stays on solid until the belt is buckled. This cycle continues several times if the front passenger remains or becomes unbuckled while the vehicle is moving. If the front passenger seat belt is buckled, neither the chime nor the light comes on. The front passenger seat belt reminder light and chime may come on if an object is put on the seat such as a briefcase, handbag, grocery bag, laptop, or another electronic device. To turn off the reminder light and/or chime, remove the object from the seat or buckle the seat belt.

Airbag Readiness Light
This light shows if there is an electrical problem with the airbag system. It is located in the instrument cluster. The system check includes the airbag sensor(s), the passenger sensing system, the pretensioners, the airbag modules, the wiring, and the crash sensing and diagnostic module.

The airbag readiness light comes on for several seconds when the vehicle is started. If the light does not come on then, have it fixed immediately.

Warning
If the airbag readiness light stays on after the vehicle is started or comes on while driving, it means the airbag system might not be working properly. The airbags in the vehicle might not inflate in a crash, or they could even inflate without a crash. To help avoid injury, have the vehicle serviced right away. If there is a problem with the airbag system, a Driver Information Center (DIC) message may also come on.

Passenger Airbag Status Indicator
The vehicle has a passenger sensing system. The overhead console has a passenger airbag status indicator When the vehicle is started, the passenger airbag status indicator will light ON and OFF, or the symbol for on and off, for several seconds as a system check. Then, after several more seconds, the status indicator will light either ON or OFF, or either the on or off symbol, to let you know the status of the front outboard passenger frontal airbag. If the word ON, or the on symbol, is lit on the passenger airbag status indicator, it means that the front outboard passenger frontal airbag is allowed to inflate. If the word OFF, or the off symbol, is lit on the passenger airbag status indicator, it means that the passenger sensing system has turned off the front outboard passenger frontal airbag. If, after several seconds, both status indicator lights remain on, or if there are no lights at all, there may be a problem with the lights or the passenger sensing system.

Warning
If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. To help avoid injury to yourself or others, have the vehicle serviced right away.

Charging System Light

The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a check to show the light is working. It should go out when the engine is started. If the light stays on, or comes on while driving, there may be a problem with the electrical charging system. Have it checked by your dealer? Driving while this light is on could drain the battery. When this light comes on, or is flashing, the Driver Information Center (DIC) also displays a Ba message. If a short distance must be driven with the light on, be sure to turn off all accessories, such as the radio and air conditioner. Find a safe place to stop the vehicle.

Malfunction Indicator Lamp (Check Engine Light)
This light is part of the vehicle’s emission control onboard diagnostic system. If this light is on while the engine is running, a malfunction has been detected and the vehicle may require service. The light should come on to show that it is working when the ignition is in Service Mode. 
Malfunctions are often indicated by the system before any problem is noticeable. Being aware of the light and seeking service promptly when it comes on may prevent damage.

Caution
If the vehicle is driven continually with this light on, the emission control system may not work as well, the fuel economy may be lower, and the vehicle may not run smoothly. This could lead to costly repairs that might not be covered by the vehicle warranty.

Caution
Modifications to the engine, transmission, exhaust, intake, or fuel system, or the use of replacement tires that do not meet the original tire specifications, can cause this light to come on. This could lead to costly repairs not covered by the vehicle warranty. This could also affect the vehicle’s ability to pass an Emissions Inspection/Maintenance test.

If the light is flashing: A malfunction has been detected that could damage the emission control system and increase vehicle emissions. Diagnosis and service may be required. To help prevent damage, reduce vehicle speed and avoid hard accelerations and uphill grades. If towing a trailer, reduce the amount of cargo being hauled as soon as possible.

Check the following:

• If fuel has been added to the vehicle using the capless fuel funnel adapter, make sure that it has been removed. The diagnostic system can detect if the adapter has been left installed in the vehicle, allowing fuel to evaporate into the atmosphere. A few driving trips with the adapter removed may turn off the light.
• Poor fuel quality can cause inefficient engine operation and poor driveability, which may go away once the engine is warmed up. If this occurs, change the fuel brand. It may require at least one full tank of the proper fuel to turn the light off. 

Emissions Inspection and Maintenance Programs
If the vehicle requires an Emissions Inspection/Maintenance test, the test equipment will likely connect to the vehicle’s Data Link Connector (DLC). The DLC is under the instrument panel to the left of the steering wheel. Connecting devices that are not used to perform an Emissions Inspection/Maintenance test or to service the vehicle may affect vehicle operation. 

The vehicle may not pass inspection if:

• The light is on when the engine is running.
• The light does not come on when the ignition is in Service Mode.
• Critical emission control systems have not been completely diagnosed. If this happens, the vehicle would not be ready for inspection and might require several days of routine driving before the system is ready for inspection. This can happen if the 12-volt battery has recently been replaced or run down, or if the vehicle has been recently serviced.

Brake System Warning Light

Metric

English

This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. If the light comes on and stays on, there is a brake problem. Have the brake system inspected right away. This light may come on if the brake fluid is low. If the light comes on while driving, pull off the road and stop carefully. If equipped with an electric brake boost, vehicle speed may be limited when the brake system warning light comes on. The brake pedal might be harder to push, or the brake pedal may go closer to the floor. It could take longer to stop. If the light is still on, have the vehicle towed for service. 

Warning
The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a crash. If the light is still on after the vehicle has been pulled off the road and carefully stopped, have the vehicle towed for service.

Electric Parking Brake Light

Metric

English Base Level

This light comes on when the parking brake is applied. If the light continues flashing after the parking brake is released, or while driving, there is a problem with the Electric Parking Brake system. A message may also display in the Driver Information Center (DIC). If the light does not come on, or remains flashing, see your dealer.

Lane Keep Assist (LKA) Light

If equipped, the Lane Keep Assist Light may display the following colors:

• Blank: LKA is disabled.
• White: Appears when the vehicle starts.

A steady white light indicates that LKA is not ready to assist.

• Green: Appears when LKA is turned on and ready to assist. LKA will gently turn the steering wheel if the vehicle approaches a detected lane marking.
• Amber: This appears when LKA is active. The light flashes amber as a Lane Departure Warning (LDW) alert to indicate that the lane marking has been unintentionally crossed. If the system detects you are steering intentionally (to pass or change lanes), the LDW alert may not display LKA will not assist or alert if the turn signal is active in the direction of lane departure, or if LKA detects that you are accelerating, braking, or actively steering.

Automatic Emergency Braking (AEB) Disabled Light

This indicator displays when you turn off Automatic Emergency Braking (AEB) or Front Pedestrian Braking (FPB). This indicator will also display if AEB or FPB is unavailable due to malfunction, weather conditions, or if the windshield is not clean.

Vehicle Ahead Indicator

If equipped, this indicator will display green when a vehicle is detected ahead and amber when you are following a vehicle ahead much too closely. 

FCA/ACC Following Gap Light

If equipped, this light indicates the following gap setting (near, medium, or far) for FCA, and, if equipped, Adaptive Cruise Control (ACC).

Pedestrian Ahead Indicator

If equipped, this indicator will display amber when a nearby pedestrian is detected in front of the vehicle. 

Traction Off Light

This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. The traction off light comes on when the Traction Control System (TCS) has been turned off. If StabiliTrak/Electronic Stability Control (ESC) is turned off, TCS is also turned off. To turn TCS and ESC off and on, If TCS is off, wheel slip during acceleration is not limited unless necessary to help protect the driveline from damage. Adjust driving accordingly.

StabiliTrak OFF Light

This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. This light comes on when the StabiliTrak/ Electronic Stability Control (ESC) system is turned off. If StabiliTrak/ESC is off, the Traction Control System (TCS) is also off. To turn ESC off and on, If ESC and TCS are off, the systems do not assist in controlling the vehicle. Adjust driving accordingly.

Traction Control System (TCS)/ StabiliTrak Light
This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. If the light is on and not flashing, the TCS and potentially the StabiliTrak/ESC system are not fully operational and may not assist in maintaining control. Adjust driving accordingly. If the condition persists, see your dealer as soon as possible. A Driver Information Center (DIC) message may be displayed. The light flashes when the TCS and/or the StabiliTrak/ESC system is actively working. 

Engine Coolant Temperature Warning Light

This light comes on briefly while starting the vehicle. If it does not, have the vehicle serviced b your dealer. If the system is working normally the indicator light goes off.

Caution
The engine coolant temperature warning light indicates that the vehicle has overheated. Driving with this light on can damage the engine and it may not be covered by the vehicle warranty. The engine coolant temperature warning light comes on when the engine has overheated. If this happens, pull over and turn off the engine as soon as possible.

Driver Mode Control Light
This light comes on when Sport Mode is selected.

This light comes on when Snow Mode is selected.

This light comes on when V Mode is selected. This light comes on when My Mode is selected. 

Performance Traction Management Light
If equipped, when Performance Traction Management (PTM) is activated, one of the following lights displays show the current PTM mode. 

• This light comes on when Wet Mode is selected.
• This light comes on when Dry Mode is selected.
• This light comes on when Sport Mode is selected.
• This light comes on when Race 1 Mode is selected.
• This light comes on when Race 2 Mode is selected.

Tire Pressure Light
If equipped with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the vehicle is started. It provides information about tire pressures and the TPMS.

When the Light Is On Steady
This indicates that one or more of the tires are significantly underinflated. A Driver Information Center (DIC) tire pressure message may also display. Stop as soon as possible, and inflate the tires to the pressure value shown on the Tire and Loading Information label. 

When the Light Flashes First and Then Is On Steady
If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the problem is not corrected, the light will come on every time the vehicle is started. 

Engine Oil Pressure Light

Caution
Driving the vehicle with low engine oil pressure can damage the engine and the repairs would not be covered by the vehicle warranty.

If the engine oil pressure light comes on while driving:

1.  Stop in a safe location and turn off the engine.
2. Check the oil level. 
3. Add oil if the oil level is below the normal operating range.
4. Restart the vehicle. If the engine oil pressure light stays on for more than 10 seconds, turn the vehicle back off. Do not restart the vehicle.

See your dealer for service.
This light should come on briefly when the engine starts. When the engine is off and the vehicle is on, the light should remain illuminated. If it does not come on under either condition, contact your dealer.
If the light comes on and stays on when the engine is running, it may not have adequate oil pressure. The oil level may be low or there may be some other oil system problem. Turn the engine off when it is safe to do so and contact your dealer.

Low Fuel Warning LightA Low Fuel Warning Light near the fuel gauge comes on briefly when the ignition is turned on as a check to show it is working. It also comes on when the fuel gauge indicator nears empty. The light turns off when fuel is added. If it does not, have the vehicle serviced.

Security LightThe security light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. 

High-Beam On LightThis light comes on when the high-beam headlamps are in use. 

IntelliBeam Light

This light comes on when the IntelliBeam system, if equipped, is enabled. 

Lamps On Reminder

This light comes on when the exterior lamps are in use, except when only the Daytime Running Lamps (DRL) are active. 

Cruise Control Light

The cruise control light is white when the cruise control is on and ready, and turns green when the cruise control is set and active. 

Adaptive Cruise Control Light

Base Level

This light is white when the Adaptive Cruise Control (ACC, if equipped) is on and ready, and turns green when the ACC is set and active. See Adaptive

Cruise speed Control light
If equipped, this light may illuminate green when ACC is actively controlling the vehicle speed and detects a sharp curve on the road ahead. ACC automatically slows the vehicle down while navigating the curve and may increase speed out of the curve, but will not exceed the set speed.

Super Cruise Light
This light comes on to show the status of Super Cruise. 

Door Ajar Light

Base Level and Midlevel

This light comes on when a door is open or not securely latched. Before driving, check that all doors are properly closed.

FAQ

Useful Link

View Full User Guide: Cadillac CT4 2023 User Guide
Download Manuals: https://www.cadillac.com/support/vehicle/manuals-guides
2023 Cadillac CT4 Specs, Price, Features, Mileage and Review