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 Diagnostics. Click on the “My Account” tab on the home page.
See also:
License Plate Lamp
To replace one of these bulbs:
1. Open the liftgate. See Liftgate for more information.
Passenger Side Shown, Driver Side
Similar
2. Push the left end of the lamp assembly towards the ri ...
Engine Compartment
Fuse Block
(CTS-V Coupe and
Sedan)
This fuse block is on the left side of
the engine compartment.
Lift the fuse block cover to access
the fuses.
The vehicle may not be equipped
with all of the fuses and relays
shown.
Notic ...
Odometer
The odometer shows how far the
vehicle has been driven, in either
kilometers or miles.
This vehicle has a tamper–resistant
odometer. The digital odometer will
read 999,999 if it is turned bac ...