If You Do Decide To Pull A Trailer - GMC 2002 Yukon Denali Owner's Manual

If You Do Decide To Pull A Trailer

If you do, here are some important points:
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There are many different laws, including speed limit
restrictions, having to do with trailering. Make sure
your rig will be legal, not only where you live but
also where you'll be driving. A good source for this
information can be state or provincial police.
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Consider using a sway control if your trailer will
weigh 5,000 lbs. (2 270 kg) or less. You should
always use a sway control if your trailer will weigh
more than 5,000 lbs. (2 270 kg). You can ask a
hitch dealer about sway controls.
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Don't tow a trailer at all during the first 500 miles
(800 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.
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Then, during the first 500 miles (800 km) that you
tow a trailer, don't drive over 50 mph (80 km/h) and
don't make starts at full throttle. This helps your
engine and other parts of your vehicle wear in at the
heavier loads.
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You can tow in DRIVE (D). You may want to shift
the transmission to THIRD (3) or, if necessary, a
lower gear selection if the transmission shifts too
often (e.g., under heavy loads and/or hilly
conditions). See "Tow/Haul Mode" in the Index.
Three important considerations have to do with weight:
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the weight of the trailer,
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the weight of the trailer tongue
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and the weight on your vehicle's tires.
Tow/Haul Mode
The tow/haul feature assists when pulling a heavy trailer
or a large or heavy load. The purpose of the tow/haul
mode is to:
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Reduce the frequency and improve the predictability
of transmission shifts when pulling a heavy trailer or
a large or heavy load.
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Provide the same solid shift feel when pulling a
heavy trailer or a large or heavy load as when the
vehicle is unloaded.
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Improve control of vehicle speed while requiring less
throttle pedal activity when pulling a heavy trailer or
a large or heavy load.