Jeep 2004 Grand Cherokee - Manual (Page 227)

WARNING!
Improper towing can lead to an injury accident.
Follow these guidelines to make your trailer towing
as safe as possible:
• Be sure a trailer is loaded heavier in front, about 10%
to 15% of gross trailer weight. Loads balanced over the
wheels or heavier in the rear cause the trailer to sway
severely
side to side which will cause loss of control of
the vehicle and trailer. Failure to load trailers heavier
in front is the cause of many trailer related accidents.
• Do not interconnect the hydraulic brake system of
your vehicle with that of the trailer. This could cause
inadequate braking and possible personal injury.
• Trailer brakes are required for trailers in excess of
2,000 lbs (907 kg).
• Do not connect a trailer lighting system directly to the
lighting system of your vehicle. Use an approved
trailer wiring harness. Failure to do so could damage
the vehicle electrical system and/or result in personal
injury.
• When hauling cargo or towing a trailer, do not over-
load your vehicle or trailer. Overloading can cause a
loss of control, poor performance or damage to brakes,
axle, engine, transmission, steering, suspension, body
structure or tires.
• Make certain that the load is secured in the trailer and
will not shift during travel.
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