Hummer H3T Owner's Manual page 257

04AKENG59_H3T.fm Page 257 Thursday, July 31, 2008 12:07 PM
• You should not park vehicles
with trailers on a grade (hill).
However, if you must park on a
grade, have someone place
wheel chocks under the trailer
wheels.
For more information, see
"Parking On Hills" later in this
section.
• Your vehicle is equipped with a
Hill Start Assist feature, which
may be useful when stopped
on a grade. See "Hill Start
Assist" earlier in this section.
• Your vehicle may show signs of
overheating if you turn your
engine off immediately after
towing at high altitudes on
steep uphill grades.
If possible, park on a level sur-
face. Set the parking brake
firmly. Shift the automatic
transmission into P (Park) or
the manual transmission into
neutral.
Allow the engine to idle for a
few minutes before turning the
engine off.
If you do get an overheat warn-
ing, see "Engine Overheating"
in Section 5 for instructions.
Section 3
Trailer Recommendations:
• Do not exceed your vehicle's
Cargo Weight Rating. This fig-
ure is the maximum weight of
the load your vehicle can carry,
not including the weight of
passengers.
• Weigh your vehicle with the
trailer attached.
If you are using a weight-dis-
tributing hitch, weigh the vehi-
cle without the spring bars in
place.
The gross axle weight ratings
and the gross vehicle weight
rating must not be exceeded.
• You will get the best perfor-
mance if you spread the weight
of your load properly and if you
choose the correct hitch and
trailer brakes.
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