Jeep 2007 Grand Cherokee - Manual (Page 329)

CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg) loaded,
it should have its own brakes and they should be of
adequate capacity. Failure to do this could lead to
accelerated brake lining wear, higher brake pedal ef-
fort, and longer stopping distances.
WARNING!
Do not connect trailer brakes to your vehicle’s hydrau-
lic 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.
Towing any trailer will increase your stopping distance.
When towing you should allow for additional space
between your vehicle and the vehicle in front of you.
Failure to do so could result in an accident.
Towing Requirements — Trailer Lights & Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may include a 4 and 7 pin
wiring harness. Use a factory approved trailer harness
and connector.
The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following illustrations.
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