Global Positioning System (GPS)
• Obstruction of the GPS can occur in a large city with tall buildings; in parking garages; around airports; in tunnels, underpasses, or parking garages; or in an area with very dense trees. If GPS signals are not available, the OnStar system should still operate to call OnStar. However, OnStar could have difficulty identifying the exact location.
• In emergency situations, OnStar can use the last stored GPS location to send to emergency responders.
• A temporary loss of GPS can cause loss of the ability to send a Turn-by-Turn Navigation route.
The Advisor may give a verbal route or may ask for a call back after the vehicle is driven into an open area.
See also:
EPB Release
To release the EPB, place the ignition in the ON/RUN position, apply and hold
the brake pedal, and push down momentarily on the EPB switch. If you attempt to
release the EPB without the brake peda ...
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced.
If the wheel leaks air, replace it.
...
Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi). See Scheduled Maintenance
.
Tires are rotated to achieve a uniform wear for all tires. The first rotation is the most important.
Any time unusua ...