License Plate Lamp (Coupe and Sedan)
To replace one of these bulbs:
1. Push the tab to remove the license plate lamp.
2. Turn the license plate lamp assembly down to remove it.
3. Turn the socket counterclockwise and remove it.
4. Pull the bulb straight out to remove it.
5. Push the new bulb straight into the socket.
6. Reverse Steps 1 through 3 to reinstall the license plate lamp assembly.
See also:
Exterior Lamp Controls
The exterior lamp control is
located toward the end of the
turn signal/lane change lever.
(Exterior Lamp Control):
Turn the band with this symbol on
it to operate the exterior lamps.
The e ...
Engine Compartment
Fuse Block
(CTS Coupe and Sedan)
The underhood fuse block is
located 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 rel ...
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 ...