GMC 15919282 Automobile User Manual


 
Trailering is different than just driving
the vehicle by itself. Trailering means
changes in handling, acceleration,
braking, durability and fuel economy.
Successful, safe trailering takes
correct equipment, and it has to be
used properly.
The following information has many
time-tested, important trailering tips
and safety rules. Many of these are
important for the safety of the driver
and the passengers. So please read
this section carefully before pulling
a trailer.
Load-pulling components such as
the engine, transmission, rear axle,
wheel assemblies and tires are
forced to work harder against the
drag of the added weight. The engine
is required to operate at relatively
higher speeds and under greater
loads, generating extra heat.
What’s more, the trailer adds
considerably to wind resistance,
increasing the pulling requirements.
Pulling A Trailer
Here are some important points:
There are many different
laws, including speed limit
restrictions, having to do with
trailering. Make sure the rig will
be legal, not only where you
live but also where you will be
driving. A good source for this
information can be state or
provincial police.
Consider using a sway control.
See “Hitches” later in this
section.
Do not tow a trailer at all during
the first 500 miles (800 km) the
new vehicle is driven. The engine,
axle or other parts could be
damaged.
Then, during the first 500 miles
(800 km) that a trailer is towed, do
not drive over 50 mph (80 km/h)
and do not make starts at full
throttle. This helps the engine and
other parts of the vehicle wear in
at the heavier loads.
Obey speed limit restrictions
when towing a trailer.
The vehicles can tow in D (Drive).
Shift the transmission to a lower
gear if the transmission shifts too
often under heavy loads and/or
hilly conditions. See “Tow/Haul
Mode” later in this section.
The vehicle is designed primarily
as a passenger and load carrying
vehicle. If a trailer is towed,
the vehicle will require more
frequent maintenance due to the
additional load.
Three important considerations have
to do with weight:
The weight of the trailer.
The weight of the trailer tongue.
And the weight on the vehicle’s
tires
Driving Your Vehicle 4-25