See also:

Limitations
Strong sunlight, reflections, extreme light contrasts, the use of sunglasses, or if the driver is not looking straight ahead may make the visual warning signal in the windshield difficult to see. ...

Whiplash Protection System – WHIPS
General information Whiplash Protection System (WHIPS) – front seats only The WHIPS system consists of specially designed hinges and brackets on the front seat backrests designed to help abs ...

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 lo ...