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:
Meet the Wedge
The CTS sedan's exterior is angular, but the new CTS coupe takes the design
theme to a new level. There are creases everywhere, and while most meet and
intersect to create a unique-looking coupe t ...
Rear Wiper Blade Replacement
The rear wiper blade and wiper arm have a cover for protection.
The cover must be removed before the wiper blade can be replaced.
To remove the cover:
1. Slide a plastic tool under cover ...
Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade.
If the transmission is not shifted down, the brakes might get hot and no longer
work well.
Vehicles can tow ...






