Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.
See also:
Checking Brake Fluid
The brake/clutch fluid can be checked without taking off the cap by looking at the brake/clutch fluid reservoir.
The fluid level should be above MIN. If it is not, have the brake/ clutch hydraulic sy ...
Express Window Operation
Windows with an express-up or down feature allow the front windows to be lowered
or raised without holding the switch. Rear windows only have express-down. Pull
a window switch up or push it down ...
When the Light Flashes First and Then Is On Steady
If the light flashes for about a minute and then stays on, there may be a problem
with the TPMS. If the problem is not corrected, the light will come on at every
ignition cycle. See Tire Pressure ...