Steep inclines and/or heavy loads

ACC is primarily intended for use on fairly level roads. The system may have difficulty maintaining the correct distance to a vehicle ahead on steep inclines, if the vehicle is carrying a heavy load or is towing a trailer. In these situations, the driver should always be prepared to apply the brakes if necessary.
See also:
Brake lights
The brake lights come on automatically when the brakes are applied.
Adaptive brake lights
The adaptive brake lights activate in the event of sudden braking or if the ABS
system is activated. This ...
Getting started
Voice control button on the steering wheel ...
Operation
Controls and display
1 Resume previous settings, increase speed (each additional press increases
speed by 1 mph (approximately 2 km/h).
2 Standby mode on/off
3 Set time interval
4 Put in activ ...
