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:
Express Window Anti-Pinch Override
WARNING
If express override is activated, the window will not reverse automatically.
You or others could be injured and the window could be damaged. Before you use express
override, make sur ...
Adaptive Forward Lighting (AFL) Light
This light should come on briefly as the vehicle is started. If it does not
come on, have the vehicle serviced by your dealer.
This light comes on solid when there is a problem with the Adapti ...
Buying New Tires
GM has developed and matched
specific tires for the vehicle. The
original equipment tires installed
were designed to meet General
Motors Tire Performance Criteria
Specification (TPC Spec) sy ...






