Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Front Fog Lamps
The front fog lamp button is located on the exterior lamp control, on the
outboard side of the steering wheel.
The ignition must be on to turn on the fog lamps.
(Front Fog Lamps): Press to ...
Engine Compartment
Fuse Block
(CTS Wagon)
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 ...
UHP Controls
Use the buttons located on the infotainment system and the steering wheel to
operate the UHP system.
Steering Wheel Controls
Steering wheel controls can be used to:
- Answer incoming calls
...