Colorado 2WD L5-3.5L VIN 6 (2005)
Wheels: All Technical Service Bulletins
Wheels/Tires - 18 Inch Accessory Wheel Information
Bulletin No.: 05-03-10-017B
Date: January 25, 2008
INFORMATION
Subject:
18" Accessory wheels Available Through GM Accessories
Models:
2004-2008 Chevrolet Colorado
2004-2008 GMC Canyon
Excludes vehicles with Manual Transmission (RPO MA5) and vehicles with 2WD and Z85 Suspension Package or Sport Suspension Package (RPO
ZQ8) and 2008 vehicles with 5.3L V8 Engine (VIN L - RPO LH8)
Supercede:
This bulletin is being revised to update the models to 2008. Please discard Corporate Bulletin Number 05-03-10-017A (Section 03 - Suspension).
The purpose of this bulletin is to provide a reference guide for the technician to upgrade a vehicle from factory wheels and tires to 18" wheels and tires,
which are available through GM Accessories. This guide will cover tires, wheels, vehicle modifications, and warranty Information.
Tires
GM offers one tire, the Goodyear Fortera HL P245/60R18 104S ALS, to be used in conjunction with the 18" accessory wheels. The Goodyear Fortera
tire has a Tire Performance Criteria (TPC) spec of # 1252 MS, which meets or exceeds all Federal safety guidelines.
Spare Tire
A P235/75R15 tire should be used as a spare. Re-use the vehicles original spare wheel to mount the spare tire. The spare tire should be used to drive the
vehicle to a tire repair/replacement facility and is not intended for extended driving conditions. In the case of a flat road tire, the 18" wheel/tire will not
stow on the spare tire hoist under the vehicle. If the flat tire is stowed in the pick-up bed, it should be secured properly.
Tire Changers
Dealers must have the correct level of tire changing equipment to perform tire changing services. GM requirements and recommendations for servicing
glamour wheels are as follows:
Rim Clamp design
Runflat capable (preferred)
Side mounted bead breaking to reduce stress on the wheel and tire
No metal contact to the wheel at the clamping jaws
Protective devices to prevent damage during mounting and dismounting operations
Regulated air pressure to protect user and wheel assembly
Approved lubricant to avoid wheel slip and damage to the wheel
For further information regarding equipment meeting the requirements for this program, call 1-800-GM-TOOLS.
When mounting the tires, rubber lubricant GM P/N 12345884 (in Canada, use P/N 5728223) MUST be used. Also, the vehicle should not be driven
aggressively (hard acceleration or braking) for at least 6-8 hours after tire mounting to allow the lubricant to dry. Failure to do so may cause the tire to
slip on the rim. This condition will affect wheel balance, which could result in a vibration.
Balancing
MC style coated weights are recommended and will provide the best balancing of the tire-wheel assembly. If stick-on weights are used, be sure to follow
the manufacturers recommended installation procedure (SI Document ID # 664222) making sure the surface is clean and dry. Using the incorrect type of
