Click the Dashboard Indicator Light for a full description of what each light means and possible preventative measures for you to take.
What Do The Warning Lights Mean?
Adaptive Cruise Control
The available Audi adaptive cruise assist (ACA) is a “hands-on” system that enhances comfort, particularly on long journeys—by assisting the driver with acceleration and braking plus maintaining speed and following distance—and keeps the car in its lane at highway speeds and during traffic jam situations.
Anti-Lock Braking System
ABS prevents the wheels from locking when braking. The vehicle can still be steered even during hard braking. Apply steady pressure to the brake pedal. Do not pump the pedal. A pulsing in the brake pedal indicates that the system is acting to stabilize the vehicle.
In Start/Stop mode, the engine shuts off automatically when stopped, for example at a traffic light. The ignition and important assist systems such as power steering and the brake booster will
remain available during the Stop phase. The engine will restart automatically when needed.
Electrical system: malfunction! Safely stop vehicle
Do not continue driving and switch the engine off. See an authorized Audi dealer or authorized Audi Service Facility for assistance.
Side assist monitors the blind spot and traffic behind your vehicle and provides assistance when you are changing lanes. If the system detects an
object approaching and classifies it as critical, the display symbol in the exterior mirror on that side of the vehicle will turn on.
When you switch the ignition on, the indicator light will turn on briefly to check the function. If the indicator light does not turn on, there is a system malfunction. If the indicator light stays on, there is a malfunction in the brake system.
The cruise control system assists the driver in maintaining a constant speed above approximately 15 mph (20 km/h). The system maintains the desired speed by braking and accelerating.
The turn signal activates when you move the lever into a turn signal position when the ignition is switched on. The respective left or right indicator light flashes.
Displays when the ignition is on and any door is not completely closed.
Electric Park Brake
It will illuminate when the electric parking brake has a malfunction.
Engine Cooling System
The engine cooling system is filled with a mixture of purified water and coolant additive at the factory. This coolant must not be not changed.
The coolant level is monitored using the indicator light. However, occasionally checking the coolant level manually is recommended.
IIf 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 the engine off. Check the engine oil level.
Safety Belt Monitoring System
If the indicator light turns on or flashes, a safety belt is not fastened or it has been unfastened while the vehicle is in motion. Above certain speeds, additional warning tones will sound.
If the indicator light does not turn on when the ignition is switched on, does not turn off after several seconds, or turns on or flashes while driving, there may be a malfunction in one of the safety systems. Drive to an authorized Audi dealer or authorized Audi Service Facility immediately to have the malfunction corrected.
Electronic Stabilization Control Off
To switch off the ESC, press and hold the ESC button for more than three seconds.
To completely reactivate the ESC stabilization function, press the button again. The indicator lights turn off.
It will illuminate when you switch the high beam headlamps on. It will flash when you use the headlamp flasher.
Displays when the ignition is on and the hood is not completely closed.
Active Lane Assist
If the indicator light turns on there is a malfunction,
the active lane assist functions may be unavailable
There is a malfunction in the fuel tank system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
Tire Pressure Monitoring System
If the indicator light turns on, there is a loss
of pressure in at least one tire. Check the
tires and replace or repair if necessary.
Low Washer Fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off.
Electronic Stabilization Control
If the indicator light blinks while driving, the ESC is actively regulating.
If the indicator light turns on, the system has
switched the ESC off. In this case, you can switch
the ignition off and then on to switch the ESC on
Displays when the ignition is on and the trunk is not completely closed.
Service Engine Soon
If it illuminates when the engine is running this indicates a malfunction. The On Board Diagnostics system has detected a malfunction of the vehicle emission control system.