2015 VOLKSWAGEN TOUAREG light

An indicator light k comes on in the instrument cluster display whenever Hill Descent Assist is ena-bled. The indicator light blinks when Hill Descent Assist is regulating the brakes.
Hill Descent Assist is always enabled, but only regulates the brakes when certain requirements are met.
Hill Descent Assist regulates automatically:
x If the vehicle is in off-road mode and the indicator light k is on.
x And: If your speed is under 18 mph (30 km/h).
x And: If the downhill grade is 10 % or steeper.
x And: If you neither accelerate nor apply the brakes.
x And: If the vehicle's engine is running.
If you accelerate or step on the brake when Hill Descent Assist is operating, the feature switches off. Hill Descent Assist begins regulating speed again the next time the requirements are met.
Hill Descent Assist does not regulate speed:
x On downhill grades of less than 10 %.
x OR: At speeds over 18 mph (30 km/h).
x OR: If the driver brakes or accelerates.
WARNING
Always be ready to apply the brakes. Otherwise accidents and injuries can occur.
x Hill Descent Assist is merely a driving aid and cannot always slow the vehicle down enough under on downhill grades.
x The vehicle may pick up speed despite the use of Hill Descent Assist.
The Hill Descent Assist also works when you are backing down a hill.

Warning and indicator lights

Fig. 266 In the instrument cluster display: Cruise control status indications.

Display, warning and indicator lights

Fig. 269 In the instrument cluster display: ACC is active and the maximum distance is set to the detected vehicle in front.

Fig. 270 In the instrument cluster display: ACC is not active but a vehicle was detected in front.

Lights
up Possible cause ⇒  Proper response

Lights
up Possible cause ⇒  Proper response
E
Adaptive Cruise Control
(ACC) is not active, the sys-
tem is on but not regulating
or holding speed.
-

When the ignition is switched on, several warning and indicator lights come on briefly for a function check. They go out after a few seconds.
WARNING
Failure to heed warning lights and instrument cluster text messages can cause the vehicle to break down in traffic and result in a collision and serious personal injury.
x Never ignore warning lights or text WARNINGS.
x Always stop the vehicle as soon as it is safe to do so.
NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
Radar sensors, ultrasonic sensors and Front Assist camera

Fig. 271 Vehicle front view: Sensors and camera

There are 2 radar sensors next to the fog lights on the vehicle front (3). These can detect moving vehicles up to 590 ft (180 m) in front of your vehicle.
The areas of the sensors (2) and (3) and the camera (1) must not be spray painted on or covered by stickers or other objects, since this can lead to a malfunction of the Adaptive Cruise Control (ACC) and the Front Assist system.
NOTICE
If you notice that Adaptive Cruise Control (ACC) or Front Assist doesn't work properly or the sensors are damaged, switch off ACC immediately.
x Go see an authorized Volkswagen dealer or Volkswagen Service Facility for assistance and have the ACC system checked.
x The sensors can be damaged or become misaligned in low speed impacts and parking maneuvers. Damaged or misaligned sensors can cause ACC or Front Assist to malfunction.
x To help make sure that the system works properly, always keep the sensors clean, free of snow and ice; do not cover the sensors with stickers or other objects.
x When cleaning the sensors with power washers or steam cleaners, only spray the sensors directly for a very short time, and always keep the washer nozzle at least 4 inches (10 cm) from the sensors.
x For Declaration of Compliance to United States FCC and Industry Canada regulations
Always keep the area of the Front Assist camera clear of ice and snow.
Switching ACC on and off

Fig. 272 On the steering wheel column: Lever for Adaptive Cruise Control.

Fig. 273 Lever for Adaptive Cruise Control: Setting the distance (time intervals)

WARNING
Improper use of the Adaptive Cruise Control can cause collisions, other accidents and seri-ous personal injury.
x Always remember that the Adaptive Cruise Control has limits – it will not slow the vehicle down or maintain the set distance when you drive towards an obstacle or something on or near the road that is not moving, such as vehicles stopped in a traffic jam, a stalled or disa-bled vehicle.
x Always remember that the Adaptive Cruise Control cannot detect a vehicle that is driving towards you in your traffic lane and that it cannot detect narrow vehicles such as motorcy-cles and bicycles.
x Never drive at speeds that are too fast for traffic, road and weather conditions.
x Never follow a vehicle so closely that you cannot stop your vehicle safely. The Adaptive Cruise Control cannot slow or brake the vehicle safely when you follow another vehicle too closely. Always remember that the Adaptive Cruise Control has a braking power that is only about 30% of the vehicle's maximum braking ability, the automatic braking function cannot bring the vehicle to a stop.
x Never use Adaptive Cruise Control when you cannot drive safely at a steady speed, in-cluding on city streets, on winding roads or when road conditions are poor (for example, on ice, gravel, in fog, heavy rain or on wet roads that increase the risk of hydroplaning).
x The radar sensor's vision can be reduced by rain, snow and heavy road spray. These and similar conditions can prevent vehicles up ahead from being accurately detected and in some cases they may not be detected at all. Do not use ACC when the radar sensors cannot accu-rately detect vehicles moving ahead of you in traffic.
x Always turn off Adaptive Cruise Control when entering turn lanes, exit lanes and construc-tion zones or in similar situations because the vehicle will automatically accelerate to the stored speed when the road ahead is clear.
x Never rest your foot on the accelerator pedal, especially when the Adaptive Cruise Control is being used because doing so will override the braking function.
x Always pay attention to traffic, especially when Adaptive Cruise Control is switched on.
x Always maintain a safe speed and distance between your vehicle and other vehicles while considering the traffic situation. This is the duty of the driver. Adaptive Cruise Control is merely an aid to the driver.
x To prevent unintended operation, always switch ACC off when it is not being used.
x It is dangerous to use the “Resume” feature when the previously set speed is too high for existing road, traffic or weather conditions.
x Always select a speed and distance to traffic ahead that is safe and appropriate under the prevailing traffic, road, weather and lighting conditions.
x Never allow the closing speed between you and other vehicles to be so high that the Adaptive Cruise Control may not be able to slow your vehicle safely. If closing speed is too high, you must apply the brakes yourself to reduce the risk of a rear-end crash.
NOTICE
When the vehicle is driving at speeds lower than 20 mph (30 km/h) and the 3%4 button is pressed or the lever is moved to 2%35-%, the vehicle will be accelerated to the lowest possible speed that can be set in ACC of 20 mph (30 km/h)
The stored speed is canceled when the ignition or the ACC is switched off.

x If the radar sensor malfunctions.
x If external force has affected the radar sensor, for example, after a rear-end collision.
x If the radar sensor is covered (even temporarily) by any accessories or other equipment, for exam-ple, auxiliary headlights.
x If the vehicle is being loaded onto a truck, ferry, or train.
WARNING
Failure to switch off the Forward Collision Warning system in the situations mentioned can cause accidents and serious personal injury.
Forward Collision Warning system (Front Assist) system limits