Jeep Grand Cherokee Operating Information Manual page 339

WARNING! (Continued)
• Safety chains must always be used be-
tween your vehicle and trailer. Always con-
nect the chains to the hook retainers of the
vehicle hitch. Cross the chains under the
trailer tongue and allow enough slack for
turning corners.
• Vehicles with trailers should not be parked
on a grade. When parking, apply the park-
ing brake on the tow vehicle. Put the tow
vehicle transmission in PARK. For four-
wheel drive vehicles, make sure the trans-
fer case is not in NEUTRAL. Always, block
or "chock" the trailer wheels.
• GCWR must not be exceeded.
• Total weight must be distributed be-
tween the tow vehicle and the trailer
such that the following four ratings are
not exceeded:
1. GVWR
2. GTW
(Continued)
WARNING! (Continued)
3. GAWR
4. Tongue weight rating for the trailer hitch
utilized.
Towing Requirements — Tires
• Proper tire inflation pressures are essential
to the safe and satisfactory operation of your
vehicle. Refer to "Tires – General Informa-
tion" in "Starting And Operating" for proper
tire inflation procedures.
• Check the trailer tires for proper tire inflation
pressures before trailer usage.
• Check for signs of tire wear or visible tire
damage before towing a trailer. Refer to
"Tires – General Information" in "Starting And
Operating" for proper inspection procedure.
• When replacing tires, refer to "Tires – Gen-
eral Information" in "Starting And Operating"
for proper tire replacement procedures. Re-
placing tires with a higher load carrying ca-
pacity will not increase the vehicle's GVWR
and GAWR limits.
Towing Requirements — Trailer Brakes
– Do not interconnect the hydraulic brake sys-
tem or vacuum system of your vehicle with
that of the trailer. This could cause inad-
equate braking and possible personal injury.
– An electronically-actuated trailer brake con-
troller is required when towing a trailer with
electronically-actuated brakes. When towing
a trailer equipped with a hydraulic surge-
actuated brake system, an electronic brake
controller is not required.
– Trailer brakes are recommended for trailers
over 1,000 lbs (453 kg), and required for
trailers in excess of 1,654 lbs (750 kg).
WARNING!
• Do not connect trailer brakes to your vehi-
cle's hydraulic brake lines. It can overload
your brake system and cause it to fail. You
might not have brakes when you need
them and could have an accident.
(Continued)
335