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:
Tire Rotation
If the vehicle has non-directional
tires, they should be rotated
every 12 000 km/7,500 mi.
See Maintenance Schedule.
Tires are rotated to achieve a
uniform wear for all tires.
The first rotat ...
Park Brake and P (Park) Mechanism Check
WARNING
When you are doing this check, the vehicle could begin to move.
You or others could be injured and property could be damaged.
Make sure there is room in front of the vehicle in case it beg ...
Engine Coolant
The cooling system in the vehicle is filled with DEX-COOL® engine coolant.
This coolant is designed to remain in the vehicle for 5 years or 240 000 km
(150,000 mi), whichever occurs first.
The fo ...