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 the screen background. The Automatic setting adjusts the screen background automatically depending on the exterior lighting conditions.
To change the overall brightness setting for the display, use the vehicle interior lighting instrument panel illumination control.
See also:
Add-on Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment. Added
electrical equipment may interfer ...
Footnotes — Maintenance Schedule Additional Required Services — Severe
a) Check all fuel and vapor lines and hoses for proper hook-up, routing, and
condition. Check that the purge valve, if the vehicle has one, works properly. Replace
as needed.
b) Or every four yea ...
When to Check and Change AutomaticTransmission Fluid
A good time to check your automatic transmission
fluid level is when the engine oil is changed.
Change the fluid and filter at the intervals listed in
Additional Required Services on page 482, and ...