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:
Transmission Messages
DIFFERENTIAL HOT, REDUCE
SPEED (CTS-V ONLY)
This message displays and a
chime sounds if the differential
fluid temperature exceeds 150°C
(300°F). Driving aggressively or
at high speeds can ...
How to Check Lubricant
To get an accurate reading, the vehicle should be on a level surface.
For Two-Wheel-Drive vehicles, the proper level is from 15mm to 40mm (0.6
in to 1.6 in) below the bottom of the filler plu ...
Storing the Fe
1. Lift the cargo management system cover.
2. Release the cover from the prop rod as described in the previous steps.
3. Insert the top of the fence into the lower two clips (A).
4. Turn the ...