WARNING   WARNING:  The system does not replace the parking brake. When you leave your vehicle, always apply the parking brake and shift the transmission into park (P) for automatic transmission or first gear for manual transmission.
WARNING   WARNING:  You must remain in your vehicle when the system turns on. At all times, you are responsible for controlling your vehicle, supervising the system and intervening, if required. Failure to take care may result in the loss of control of your vehicle, serious personal injury or death.

Note:   If the engine is revved excessively, or if a malfunction is detected, the system will be deactivated.
The system makes it easier to pull away when your vehicle is on a slope without the need to use the parking brake.
When the system is active, your vehicle will remain stationary on the slope for two to three seconds after you release the brake pedal.This allows you time to move your foot from the brake to the accelerator pedal. The brakes release automatically when the engine has sufficient torque to prevent your vehicle from rolling down the grade.This is an advantage when pulling away on a slope, for example from a car park ramp, traffic lights or when reversing uphill into a parking space.
The system will activate automatically on any slope that will cause significant vehicle rollback. For vehicles with a manual transmission, you can switch this feature off using the information display.   See   Information Displays.  The system will remain on or off depending on how it was last set.
Note:   There is no warning lamp to indicate the system is either on or off.
Note:   If your vehicle is equipped with Auto Hold, Hill Start Assist will not be available while Auto Hold is active.
Using Hill Start Assist
  1. Bring your vehicle to a complete standstill. Keep the brake pedal pressed and select an uphill gear (for example, drive (D) or first (1) when facing uphill or reverse (R) when facing downhill).
  1. If the sensors detect that your vehicle is on a slope, the system will activate automatically.
  1. When you remove your foot from the brake pedal, your vehicle will remain on the slope without rolling away for about two or three seconds. This hold time will automatically be extended if you are in the process of driving off.
  1. Drive off in the normal manner. The brakes will release automatically.
Switching the System On and Off
You can switch this feature on or off if your vehicle is equipped with a manual transmission and an information display.   See   General Information.  The system remembers the last setting when you start your vehicle.
If your vehicle is not equipped with a manual transmission and an information display, you cannot turn the system on or off. When you switch the ignition on, the system automatically turns on.