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:
Fuel System Messages
FUEL LEVEL LOW
This message displays when the vehicle is low on fuel. Refuel as soon as possible. ...
What Kind of Engine Oil to Use
Look for three things:
• GM6094M
Use only an oil that meets GM Standard GM6094M.
• SAE 5W-30
SAE 5W-30 is best for the vehicle. These numbers
on an oil container show its viscosity, or thi ...
Additional Required Services
Every 12 000 km/7,500 Miles
► Rotate tires. Tires should be rotated every 12 000 km/ 7,500 miles. See Tire Rotation
.
At Each Fuel Stop
► Engine oil level check. See Engine Oil .
...
