Adjustable Throttle and Brake Pedal
If your vehicle has this feature, you can change the position of the throttle and brake pedals.
This feature is designed for shorter drivers, since the pedals cannot move farther away from the standard position, but can move closer for better pedal reach. If your vehicle has this feature, it can be programmed to work with the memory function.
The vehicle must be in PARK (P) for this feature to operate.

The switch used to adjust the pedals is located on the steering column.
Press the switch forward or backward to move the pedals closer or farther away from you.
See also:
Onstar.com
The website provides access to
account information, manages the
OnStar subscription, and allows
viewing of videos of each service.
Get subscription plan pricing and
sign up for OnStar Vehicle ...
Brake Adjustment
Every time you make a brake stop, your disc
brakes adjust for wear. ...
Towing a Trailer
CAUTION:
If you do not use the correct equipment
and drive properly, you can lose control
when you pull a trailer. For example, if the
trailer is too heavy, the brakes may not
work well — or ...
