GMC 2003 Envoy - Manual (Page 271)

Coasting downhill in NEUTRAL (N) or with the
ignition ofT is dangerous. Your brakes will have
to do all the work ot slowing down. They could
get so hoi that they wouldn't work well. Youi
would Ihen have poor braking or even none
going down a hill. You could crash. Always
have your engine running and your vehicle in
gear when you go downhill.
Know how to go uphill. You may wan I to shift down to
a lower gear, The Iowa г gears help coal your engine
and transmission, and you can climb me hill heller.
Slay in your Dwrt lane when drlvir>g on two-lane
roads in hills or mountains. Don’t swing wide or cut
across the center oC the road^ Driva at speeds lhat let
you stay In your own lane
As you go over the top of a hill, be alert. There could
be scmelhlng In your Ians, liks a stalled car or an
accident
You may see highway signs on mountarris lhat warn
o! special piobloms. Examples are long grades,
passing OT no-passing iones, a falling rocks area or
winding roads. Be alarf ta these and lake appropriate
action.
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