Transmission
Electronic Range Select (ERS) Mode
ERS mode allows you to choose the top-gear limit of the transmission and the vehicle's speed while driving downhill or towing a trailer.
The vehicle has an electronic shift position indicator within the instrument panel cluster. When using the ERS mode a number will display next to the L, indicating the current gear that has been selected.
To use this feature:
1. Move the shift lever to L (Low).
2. Press the plus/minus button located on the shift lever, to increase or decrease the gear range available.
See Manual Mode on page 9‑25.
See also:
OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock
and Stolen Vehicle Assistance. You will be prompted to change the PIN the first
time when speaking with an Advisor. T ...
Trailer Sway Control (TSC)
Non-hybrid vehicles with StabiliTrak have a Trailer Sway Control (TSC) feature. If the vehicle is towing a trailer and the system detects that the trailer is swaying, the vehicle brakes are applied wi ...
Making a Call
Calls can be made using the following commands.
Dial or Call: The dial or call command can be used interchangeably to dial a phone number or a stored name tag.
Digit Dial: This command allows a phon ...





