Transmission Messages
MANUAL SHIFT
This message displays when the automatic transmission is in manual mode. See Manual Mode for more information.
TRANSMISSION HOT IDLE ENGINE
Notice: Do not drive the vehicle while the transmission fluid is overheating and the transmission temperature warning is displayed on the instrument panel cluster and/or DIC, or the transmission can be damaged. This could lead to costly repairs that would not be covered by the warranty.
This message displays along with four chimes if the transmission fluid in the vehicle gets hot. Driving with the transmission fluid temperature high can cause damage to the vehicle. Stop the vehicle and let it idle to allow the transmission to cool. This message clears and the chime stops when the fluid temperature reaches a safe level.
See also:
Starting the Engine
Place the transmission in the
proper gear.
If the vehicle has the keyless
access system, the keyless access
transmitter must be authenticated in
order for the ignition control knob
to turn. ...
Rear Vision Camera Location
The camera is located above the
license plate.
The area displayed by the camera is
limited and does not display objects
that are close to either corner or
under the bumper. The area
displ ...
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 v ...






