Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Driving in Rain and on Wet Roads
Rain and wet roads can mean driving trouble.
On a wet road, you cannot stop, accelerate, or turn
as well because your tire-to-road traction is not
as good as on dry roads. And, if your tires do ...
Brake Fluid
The brake master cylinder and, on manual transmission vehicles, the clutch hydraulic system use the same reservoir. See Engine Compartment Overview for the location of the reservoir. The reser ...
Brake Assist
This vehicle has a brake assist feature designed to assist the driver in stopping
or decreasing vehicle speed in emergency driving conditions. This feature uses the
stability system hydraulic brak ...
