Without Selective Ride Control
1. Move the shift lever to the left from D (Drive).
The transmission will enter Manual Mode. The DIC gear indicator will change to an M followed by a number representing the gear the vehicle is currently in.
2. In Manual Mode, press the shift lever forward to upshift or rearward to downshift.
Uplevel Display Shown, Base Model Similar
The display on the instrument panel cluster will show which gear the vehicle is in. The number indicates the requested gear range when moving the shift lever forward or rearward.
The transmission will only allow you to shift into gears appropriate for the vehicle speed and engine revolutions per minute (rpm). The transmission will not automatically shift to the next lower gear if the engine rpm is too high, nor to the next higher gear when the maximum engine rpm is reached.
While in the DSC mode, the transmission will automatically downshift when the vehicle comes to a stop. This will allow for more power during take-off.
When accelerating the vehicle from a stop in snowy and icy conditions, you may want to shift into second gear. A higher gear allows you to gain more traction on slippery surfaces.
See also:
Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
You will find a warning light about a hot engine as well
as an engine coolant temperature gage on the
instrument panel cluster. ...
Display Settings
Press the Config button on the
Home Page or the CONFIG button
on the faceplate, then select Display
Settings from the list.
The following options may display:
Dimming Mode: Press to change
t ...
OnStar®
If the vehicle is equipped with an active OnStar system, that system may also
record data in crash or near crash-like situations. The OnStar Terms and Conditions
provides information on data colle ...