General Towing; Information; Driving Characteristics And - GMC Sierra Denali 2500HD 2014 Owner's Manual

GMC Sierra Denali 2500HD and 3500HD (GMNA-Localizing-U.S./Canada-
7142957) - 2014 - CRC 1st Edition - 3/28/13
Warning (Continued)
keep it in contact with the fill
opening until filling is
complete.
Fill the container no more
than 95% full to allow for
expansion.
Do not smoke, light matches,
or use lighters while
pumping fuel.
Avoid using cell phones or
other electronic devices.
Towing

General Towing

Information

Only use towing equipment that has
been designed for the vehicle.
Contact your dealer or trailering
dealer for assistance with preparing
the vehicle for towing a trailer. Read
the entire section before towing a
trailer.
For towing a disabled vehicle, see
Towing the Vehicle on page 10-80.
For towing the vehicle behind
another vehicle such as a motor
home, see Recreational Vehicle
Towing on page 10-80.
Driving Characteristics
and Towing Tips
Driving with a Trailer
When towing a trailer:
Become familiar with the state
and local laws that apply to
trailer towing.
Black plate (59,1)
Driving and Operating
Do not tow a trailer during the
first 800 km (500 mi) to prevent
damage to the engine, axle,
or other parts.
Then during the first 800 km
(500 mi) of trailer towing, do not
drive over 80 km/h (50 mph) and
do not make starts at full throttle.
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.
Warning
When towing a trailer, exhaust
gases may collect at the rear of
the vehicle and enter if the
liftgate, trunk/hatch, or rear-most
window is open.
When towing a trailer:
Do not drive with the liftgate,
trunk/hatch, or rear-most
window open.
9-59
(Continued)