Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include:
○ Keep the vehicle serviced and in good shape.
○ Check all fluid levels and brakes, tires, cooling system, and transmission.
○ Shift to a lower gear when going down steep or long hills.
WARNING
If you do not shift down, the brakes could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Shift down to let the engine assist the brakes on a steep downhill slope.
Coasting downhill in N (Neutral) or with the ignition off is dangerous. The brakes will have to do all the work of slowing down and they could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Always have the engine running and the vehicle in gear when going downhill.
○ Stay in your own lane. Do not swing wide or cut across the center of the road.
Drive at speeds that let you stay in your own lane.
○ Be alert on top of hills, something could be in your lane (stalled car, accident).
○ Pay attention to special road signs (falling rocks area, winding roads, long grades,
passing or no-passing zones) and take appropriate action.
See also:
How the System Works
URPA comes on automatically when the shift lever is moved into R (Reverse). A
single tone sounds to indicate the system is working.
URPA operates only at speeds less than 8 km/h (5 mph).
An obstac ...
Eight Way Power Seats
To adjust a power seat, if equipped:
○ Move the seat forward or rearward by sliding the control forward or rearward.
○ Raise or lower the front or rear part of the seat cushion by movi ...
General Information
This maintenance section applies to vehicles with a gasoline engine. For diesel engine vehicles, see the maintenance schedule section in the Duramax Diesel Supplement.
Your vehicle is an important in ...





