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 have to be used so much that they would get hot and no longer work well.
The vehicle can tow in D (Drive).
Use a lower gear if the transmission shifts too often.
When towing at high altitude on steep uphill grades, engine coolant boils at a lower temperature than at normal altitudes. If the engine is turned off immediately after towing at high altitude on steep uphill grades, the vehicle could show signs similar to engine overheating.
To avoid this, let the engine run while parked, preferably on level ground, with the transmission in P (Park) for a few minutes before turning the engine off. If the overheat warning comes on, see Engine Overheating.
See also:
Place a Call Using a Stored
Number
1. Push . System responds:
“OnStar ready.”.
2. Say “Call <name tag>.”.
System responds: “OK,
calling <name tag>.” ...
License Plate Lamp
To replace one of these bulbs:
1. Open the liftgate. See Liftgate for more information.
Passenger Side Shown, Driver Side
Similar
2. Push the left end of the lamp assembly towards the ri ...
Exit Lighting
This allows the selection of how long the exterior lamps stay on when
leaving the vehicle when it is dark outside.
Press the MENU/SELECT knob when Exit Lighting is highlighted.
Turn the knob to ...