Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include:
Warning
Using the brakes to slow the vehicle on a long downhill slope can cause brake overheating, can reduce brake performance, and could result in a loss of braking.
Shift the transmission to a lower gear to let the engine assist the brakes on a steep downhill slope.
Coasting downhill in N (Neutral) or with the ignition off is dangerous. This can cause overheating of the brakes and loss of steering. Always have the engine running and the vehicle in gear.
Towing the Vehicle
Caution
Incorrectly towing a disabled vehicle may cause damage. The damage
would not be covered by the vehicle warranty.
Have the vehicle towed on a flatbed car carrier or a wheel lift tow truck.
If a wheel lift tow truck is used, the drive wheels cannot contact the road while
the vehicle is ...
Cruise Control
If equipped with cruise control, the vehicle can maintain a speed of about 40
km/h (25 mph) or more without keeping your foot on the accelerator. Cruise control
does not work at speeds below 40 km/h (25 mph).
Warning
Cruise control can be dangerous where you cannot drive safely
at a steady s ...
Navigation
OnStar navigation requires a specific OnStar subscription plan.
Press to receive directions or
have them sent to the vehicle navigation screen, if equipped.
Destinations can also be forwarded to the vehicle from MapQuest.com.
Turn-by-Turn Navigation
Press to connect to a live
Advisor.
...