Trailer And Tongue Weight - Jeep 2004 Grand Cherokee Owner's Manual

228 STARTING AND OPERATING
• It is recommended that any hitches installed on your
vehicle be factory installed, or installed by a dealer
using factory approved parts. Factory approved parts
are specifically engineered with your vehicle's perfor-
mance in mind, including the possibility that it will be
involved in an accident. Other hitches may not have
been so engineered. Vehicle performance, including
vehicle damage in an accident situation, may therefore
be different.
• If trailer towing is required and your vehicle is not
equipped with a trailer tow package, the Mopar
accessory towing harnesses are the only approved
method to provide for trailer lights. These harnesses
are designed to provide current to the trailer lights but
bypass the module designed to monitor tail lights.
Refer to the package instructions for details.

Trailer and Tongue Weight

Gross Trailer Weight (GTW) means the weight of the
trailer plus the weight of all cargo, consumables and
equipment loaded on the trailer when in actual underway
towing condition. The best way to measure GTW is to put
your fully loaded trailer on a vehicle scale. The entire
weight of the trailer must be supported by the scale.