Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception.
Cellular reception is required for OnStar to send remote signals to the vehicle.
See also:
Hitches
Use the correct hitch equipment.
See your dealer or a hitch dealer for
assistance.
- The rear bumper on the vehicle
is not intended for hitches.
Do not attach rental hitches or
other bumper-t ...
Keys
WARNING
Leaving children in a vehicle with the Remote Keyless Entry (RKE) transmitter
is dangerous for many reasons; children or others could be badly injured or
even killed.
They could operate t ...
Engine Heater
The engine coolant heater can provide easier starting and better fuel economy
during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles
with an engine heater should ...