GMC 2003 Envoy - Manual (Page 270)

Hill aad Mountain Roads
Driving on sleop hills or mountains is dilterent I ram
driving in Hat ar railing terrain.
If )TOu drive negutarljr in steep country, or ii youVg
planning to visil there, hero ara same lips that
can make your trips safer and more enjoyable
See Off-Hoad Driving with Ywr Fouf-W t\6el-Drive
VBhiel^ an psge4-l5 far irrforiTiation about
driving off-road
* Keep your vefiicle in good shape. Check all iluid
levels and also The brakes, tires, wolmg
system and transmisston. These parrs can work
hard on mouniarn roads,
* Know how to go down hills. The most imporianl
thing to know is this: let your engirds do some
of the slowing down. Shift to a lower gear
whan you go dawn a steep or long hill.
A
CAUTION:
If you don't shift down, your brakes could get so
hot that they wouldn't work well. You would
then have poor braking or even none going
down a hill. You could crash. Shift down to jet
your engine assist your brakes one staep
downhill slope.
4-37