• The gross trailer weight must never exceed TWR described in the table. • The gross combination weight must never exceed the GCWR described in the table.

• The gross vehicle weight must never exceed the GVWR indicated on the Certification Label.
• The gross axle weight on each axle must never exceed the GAWR indicated on the Certification Label.
• If the gross trailer weight is over the unbraked TWR, trailer service brakes are required.
• Vehicles with a towing package: If the gross trailer weight is over 2000 lbs. (907 kg), a sway control device with sufficient capacity is required.
Towing related terms
GCWR, TWR and Unbraked TWRLost Communication with TCM (U0101)
DESCRIPTION
The Transmission Control Module (TCM) and ECM perform 2-way communication with
each other via the Controller Area Network (CAN). The TCM sends signals to the ECM
concerning required engine speed, required engine torque, warning indicators in
...
GCWR, TWR and Unbraked TWR
Confirm that the gross trailer weight, gross combination weight, gross vehicle
weight, gross axle weight and tongue weight are all within the limits.
- GCWR* and TWR*
► Vehicles without towing package
► Vehicles with towing package
...
Operation Check
OPERATION CHECK
1. CHECK PANEL & STEERING SWITCH
HINT:
The radio and display receiver assembly panel switches and steering
switches are checked in the following procedure.
Illustrations may differ from the actual vehicle screen depending ...