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Applies to: vehicles with Audi adaptive cruise control
The traffic jam assist function helps the driver in traffic jams or congested traffic.
- Fig. 139 Turn signal lever: Button for traffic jam assist
- Fig. 140 Instrument cluster: Traffic jam assist
At speeds below 65 km/h, the traffic jam assist can help to keep the vehicle inside a traffic lane calculated by the system. The system steers the vehicle automatically when the adaptive cruise control is switched on (subject to certain inherent system limitations). As the name implies, the purpose of the traffic jam assist function is to assist the driver; the driver must keep his/her hands on the steering wheel at all times and must always be ready to take over the steering. The driver can override the automatic steering at any time by steering manually.
The system is designed for driving on motorways and major roads.
Switching the traffic jam assist on/off
Press the button Fig. 139► to switch the system on/off.
To deactivate the system permanently, select the following on the infotainment system: MENU button > Car > left control button > Driver assist > Traffic jam assist.
Requirements for using the traffic jam assist:
- The traffic jam assist must be activated on the infotainment system.
- The adaptive cruise control must be switched on and activated link►.
Always switch off the traffic jam assist in the following situations:
- In situations requiring extra care and attention from the driver.
- In poor weather, for instance in snow or heavy rain.
- In poor road conditions.
- In roadwork areas.
- In city traffic.
Availability of the traffic jam assist:
While the Driver assist display is on the instrument cluster, the indicator lamp 
and the driver message Traffic jam assist available are displayed to indicate that a traffic jam situation has been detected. You can use the controls on the multi-function steering wheel link► to call up the Driver assist display. To activate the traffic jam assist, press the button Fig. 139► and switch on the adaptive cruise control link►.
and the driver message Traffic jam assist available are displayed to indicate that a traffic jam situation has been detected. You can use the controls on the multi-function steering wheel link► to call up the Driver assist display. To activate the traffic jam assist, press the button Fig. 139► and switch on the adaptive cruise control link►.Warning and indicator lamps
and 
- Traffic jam assist is switched on. Vehicles in front have been detected. The system is controlling your vehicle as it moves Fig. 140►.
- If the driver does not take over the steering after being prompted with several severity levels, the traffic jam assist will be switched off. The system will apply the brakes and bring the vehicle to a standstill.WARNING
Always leave your hands on the steering wheel and be ready to steer at all times. It is always the driver s responsibility to keep in the traffic lane and to assess the traffic situation and take appropriate care. Please observe the safety warnings ►. Never use the traffic jam assist in the following situations - risk of accident!
- On off-road terrain or unsealed roads. The traffic jam assist is designed for use on surfaced roads only.
- In city traffic or roadwork areas.
- On twisty roads.
- In narrow traffic lanes.
- In unpredictable traffic situations, e.g. at intersections or toll gates.
Note
The system does not always keep the vehicle in the centre of the lane.