Acadia AWD V6-3.6L (2008)
Towing Information: Technical Service Bulletins
Vehicle - Trailer And RV Towing Information
INFORMATION
Bulletin No.: 07-00-89-021H
Date: August 24, 2010
Subject: Supplemental Information on Trailer Towing and Recreational Vehicle Towing (Dinghy Towing)
Models:
2008-2011 Buick Enclave
2009-2011 Chevrolet Traverse
2007-2011 GMC Acadia
2007-2010 Saturn OUTLOOK
Supercede:
This bulletin is being revised to provide two dinghy towing procedures based on the model year. Please discard Corporate Bulletin Number
07-00-89-021G (Section 00 - General Information).
The purpose of this bulletin is to inform dealers of special procedures necessary when towing a trailer or when towing the vehicle behind a recreational
vehicle.
Towing a Trailer
Trailer Weight Information
The following chart shows how much the trailer can weigh, based on the vehicle powertrain combination and whether the vehicle is equipped with
Trailer Provision (RPO V92). Retailers should refer customers to the appropriate Owner Manual for important trailering tips, vehicle maintenance, and
safety rules before towing a trailer.
Towing a Trailer with a Vehicle without Trailer Provisions (RPO V92)
These vehicles must be modified by installing a new underhood bussed electrical center (UBEC) to provide full functionality for 4 circuits: ground, tail
lamps, RH and LH stop/turn lamps. Perform this modification only if the customers will be using the vehicle to tow.
The replacement of the UBEC remains the best solution to upgrade the vehicles wiring for towing. The electrical circuitry for the tail/stop lamps is
controlled by the BCM and splicing into the body harness is not recommended.
Towing a Trailer with a Vehicle with Trailer Provisions (RPO V92)
It is necessary to modify the backup lamp circuit. Perform this procedure only if the customer will be using the vehicle to tow.
1. Disconnect the X7 connector from the Body Control Module (BCM).
2. Remove the terminal for pin 3 from the BCM X7 connector. The wire to this terminal is dark blue and is the 38 circuit.
3. Re-connect the X7 connector to the BCM.
