Wheels/Tires - 20 Inch Accessory Wheels Available
INFORMATION
Bulletin No.: 07-03-10-005E
Date: June 14, 2010
Subject: 20 Inch Accessory Wheels Available Through GM Accessories
Models:
2008-2011 Buick Enclave
2009-2011 Chevrolet Traverse
2007-2011 GMC Acadia
2007-2010 Saturn OUTLOOK
Supercede:
This bulletin is being revised to add the 2011 model year and information under the Tires heading. Please discard Corporate Bulletin Number
07-03-10-005D (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 20" wheels and
tires, which are available through GM Accessories. This guide will cover tires, wheels, vehicle modifications, and warranty information.
Warranty Information
Wheels
All GM Accessories sold and permanently installed on a GM vehicle PRIOR to new vehicle delivery will be covered under the provisions of the
Bumper to Bumper Limited Warranty.
Important
For GM Accessories installed on a vehicle at Point of Sale (added by the dealership) or after the customer has taken delivery, it is important
to add the appropriate RPO/LPO code to the vehicle with via a ZSET (Service Event Transaction) in the Global Warranty Management
(GWM) System. By submitting a ZSET, the dealership is providing the customer with proof that a Genuine GM Accessory was installed
through a GM Dealership. Upon submission of this ZSET transaction, the appropriate RPO/LPO code will be added to the VIN in the
GWM System on the IVH (Investigate Vehicle History) screen.
For the U.S., in the event GM Accessories are installed AFTER new vehicle delivery, or are replaced under the new vehicle warranty, they will be
covered (parts and labor) for the balance of the Bumper to Bumper Limited Warranty, but in no event less than 12 months/12,000 miles. This
coverage is only effective for GM Accessories permanently installed by a GM dealer or a GM approved ADI (Accessory Distributor / Installer).
For Canada, in the event GM Accessories are installed AFTER new vehicle delivery, they will be covered (parts and labour) for the balance of the
vehicle warranty, or up to 12 months/unlimited kilometers depending on month installed.
GM Accessories sold over-the-counter, or those not requiring installation, will continue to receive the standard GM Dealer Parts Warranty of 12
months from the date of purchase (parts only).
Tires
Any approved tire installed on a GM Vehicle PRIOR to delivery will be covered under the provisions of the New Vehicle Limited Warranty. Tires
are covered against defects in material and workmanship. Tires are warranted for defects "without" prorated charge for tread mileage. Subsequent
replacements under this warranty will continue to be covered for the remainder of the New Vehicle Limited Warranty.
Any approved tire installed on a GM Vehicle PRIOR to delivery may continue to be warranted on a prorated basis by the tire manufacturer once the
New Vehicle Limited Warranty expires.
Any approved tire installed AFTER delivery will be covered under the provisions of the tire manufacturer warranty.
USA dealers should refer to GM Warranty Administration Bulletin 00-03-10-003I and GM Parts Process / Policy Bulletin IB03-001 for more
information.
Canadian dealers should refer to GM Warranty Administration Bulletin 01-03-10-003C.
GM/Saturn Warranty Claims Processing
Only GM dealerships/Saturn Retailers have the ability to file warranty claims for GM Parts and Accessories. Therefore, any warranty claims filed
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against such parts must be handled by the servicing GM dealership/Saturn Retailer. This includes those parts purchased from a GM-approved ADI
(Accessory Distributor / Installer).
ACCESSORY WHEEL AND TIRE INFORMATION FORM
You have just modified your vehicle by installing an "Accessory Package" which includes Wheels and Tires. This form contains important
information about your accessory installation. In an effort to provide superior service to you, our customer, we ask that you please present this form
to your Servicing Dealer when removing or installing wheels and tires on your vehicle. This form contains important information necessary to
service your vehicle.
Disclaimer
Tires/Wheels
Tires
GM offers two tires; the Bridgestone Dueler Alenza HL P255/55R20 107H AL3, GM P/N 19162355 or 19239588, to be used in conjunction with
the 20" accessory wheels. The Bridgestone Dueler Alenza HL tire has a Tire Performance Criteria (TPC) spec, molded on the sidewall, that meets or
exceeds all Federal Safety guidelines.
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:
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- 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.
Important
When mounting the tires, rubber lubricant, GM P/N 12345884 (in Canada, 88863415), 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
Use only stick-on weights mounted on the outboard center of the rim (behind the spokes).
Balancing of the tire and wheel assembly must be performed on a computerized balancer, capable of static and dynamic wheel balance modes.
Assemblies should be balanced to within 1/4 ounce on either rim flange. Proper cones and adapters should be used, free of nicks and burrs to ensure
proper balancing.
Wheels
Wheel (Lug) Nuts
Each wheel nut should be torqued in the appropriate torque sequence (refer to graphic) and to 190 Nm (140 lb ft). The torque should be rechecked
after the first 160 km (100 mi). To help protect the wheels from theft, a wheel lock kit is also available.
Caution
Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel to become loose and even come off. This could lead to an accident. Be
sure to use the correct wheel nuts.
Care / Cleaning
Use soap, hot water and a 100% cotton cloth to clean and polish the new wheels. If using a wheel cleaner, be sure to select one that will not harm the
wheel surface, such as GM Chrome and Wire Wheel Cleaner, P/N 1052929 (in Canada, use 10953202). Avoid car washes that use carbide tipped
brushes, as these may damage the wheel's finish. Periodically clean the backside of the wheel to remove road grime, brake dust and grease.
Vehicle Modifications
Vehicle Modifications
Tire Label
After installing the recommended P255/55R20 tires, place the provided tire label on the vehicle. The new tire label should be located within the red
box, over the top of the original tire label found on the door jamb. To locate the label within the red box use the upper left hand edge of the red line
as a guide. When properly placed, the new tire label will obscure the original tire information. Be sure that the surface is clean and dry. The surface
temperature should not be less than 21��C (65��F). The label is provided as a guide for tire inflation pressures and information relevant to
occupant/cargo capacities.
Tire Pressure Monitor System/TPM Sensor Relearn
Tire Pressure Monitor (TPM) System
To avoid system malfunctions, it is necessary to install tire pressure sensors in the accessory wheels. Replacement sensors can be obtained or sensors
from the OE wheels can be transferred to the accessory wheels. After the wheels are installed on the vehicle, it is necessary to learn the new sensor
identification codes/locations into the remote control door lock receiver (RCDLR).
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TPM Sensor Relearn Procedure
Note
If using the scan tool to enable the learn mode, J-46079 must be used to activate the sensors. When this preferred method is used, any stray sensor
signals will not affect the learn procedure. In the event a particular sensor's information is displayed on the special tool upon activation but the horn
does not chirp, it may be necessary to rotate the wheel valve stem to a different position due to the sensor signal is being blocked by another
component.
If using the keyless entry transmitter or DIC buttons to enable the learn mode, J-46079 or Pressure Increase/Decrease Method may be used. Before
proceeding with this method, ensure that no other learn procedure is being performed simultaneously or that tire pressures are not being adjusted on
another TPM equipped vehicle within close proximity. Stray signals from other TPM equipped vehicles just driving by can be inadvertently learned.
If any random horn chirps are heard from the vehicle while performing the learn procedure, most likely a stray sensor has been learned and the
procedure will need to be cancelled and repeated. Under these circumstances, performing the TPM Learn Procedure away from other vehicles would
be highly recommended. In the event a particular sensor activation does not cause the horn to chirp, it may be necessary to rotate the wheel valve
stem to a different position due to the sensor signal is being blocked by another component.
Preferred Scan Tool/Keyless Transmitter Learn Enable Method
Preferred Scan Tool Learn Enable Method
1. Using a scan tool, initiate the TPM Learn Mode. A double horn chirp will sound indicating the Learn Mode has been enabled. The left front
turn signal will also be illuminated.
2. Starting with the left front tire, active the sensor by holding the antenna of J-46079 aimed upward against the tire sidewall close to the wheel
rim at the valve stem location. Press and release the Activate button and wait for a horn chirp. Once the horn chirp has sounded, the sensor
information is learned and the turn signal in the next location to be learned will illuminate.
- After the horn chirp has sounded and the right front turn signal is illuminated, repeat step 2 for the remaining 3 sensors in the following order:
- Right front
- Right rear
- Left rear
- When the left rear sensor has been learned and a double horn chirp has sounded, the learn process is complete and the RCDLR exits the learn
mode.
5. Ignition OFF, adjust all tires to the recommended pressures.
Alternate Keyless Entry Transmitter or DIC Learn Enable Method
1. Ignition ON, initiate the TPM Learn Mode using one of the following procedures:
- On vehicles equipped with keyless entry, simultaneously press the keyless entry transmitters lock and unlock buttons until a double horn
chirp sounds indicating the Learn Mode has been enabled. The left front turn signal will also be illuminated.
- On vehicles not equipped with keyless entry, press and release the driver information center (DIC) INFO button until the TIRE LEARN
message appears on the DIC display. Press and hold the SET/RESET button until a double horn chirp sounds indicating the Learn Mode
has been enabled. The left front turn signal will also be illuminated.
2. Starting with the left front tire, learn the tire pressure using one of the following methods:
- Hold the antenna of J-46079 aimed upward against the tire sidewall close to the wheel rim at the valve stem location. Press and release the
activate button and wait for a horn chirp. Once the horn chirp has sounded, the sensor information is learned and the turn signal in the next
location to be learned will illuminate.
- Increase/decrease the tire pressure for 8-10 seconds then wait for a horn chirp. The horn chirp may occur before or up to 30 seconds after
the 8-10 second pressure increase/decrease time period has been reached. Once the horn chirp has sounded, the sensor information is
learned and the turn signal in the next location to be learned will illuminate.
- After the horn chirp has sounded and the right front turn signal is illuminated, repeat step 2 for the remaining 3 sensors in the following order:
- Right front
- Right rear
- Left rear
- When the left rear sensor has been learned and a double horn chirp has sounded, the learn process is complete and the RCDLR exits the learn
mode.
5. Ignition OFF, adjust all tires to the recommended pressures.
Electronic Brake Control Module Reprogramming
Electronic Brake Control Module (EBCM) Reprogramming
- For 2008 Buick Enclave, 2007-2008 GMC Acadia and Saturn OUTLOOK, EBCM reprogramming is only required on vehicles when upsizing
from 19" tires/wheels to 20" tires/wheels.
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- For 2009-2011 vehicles, EBCM reprogramming is only required on vehicles when upsizing from factory tires/wheels.
For proper vehicle operation and to ensure coverage under the provisions of the new vehicle warranty, the vehicle must be reprogrammed with the
correct calibrations as soon as the accessory wheels are installed.
Important
Module reprogramming must be done using Pass-Thru method. There will be a specific EBCM calibration for vehicles equipped with or
without Variable Effort Steering (VES) (RPO NV7), be sure to select the correct option.
- With the Tech 2(R) still connected, select the proper reprogramming method: "Pass-Thru" and "Reprogram ECU", then "Next.".
- Build the vehicle.
- Verify that the VIN is correct, then "Next."
- Select the proper controller to be programmed: "EBCM Electronic Brake Control Module."
- Select the proper programming mode: "Normal" , then "Next."
- On the following screen, select the proper calibration "Electronic Brake."
- From the part numbers displayed, select the one containing the correct wheel size in its description, "Next."
- On the following screen, select "Done."
Engine/Transmission/Body Control Module Reprogramming
Engine Control Module (ECM) Reprogramming (2009-2011 Chevrolet Traverse Only)
Important
For proper vehicle operation and to insure coverage under the provisions of the new vehicle warranty, the vehicle must be programmed
with the correct calibration as soon as the 20" wheels are installed.
When upsizing from 17" wheels only, the ECM must be reprogrammed for speedometer accuracy. Contact Techline to obtain a VCI number. Use the
Service Programming System (SPS).
Transmission Control Module (TCM) Reprogramming (2009-2011 Chevrolet Traverse Only)
Important
For proper vehicle operation and to insure coverage under the provisions of the new vehicle warranty, the vehicle must be programmed
with the correct calibration as soon as the 20" wheels are installed.
When upsizing from 17" wheels only, the TCM must be reprogrammed for speedometer accuracy. Contact Techline to obtain a VCI number. Use the
Service Programming System (SPS).
Body Control Module (BCM) Reprogramming (Export Mexico Only)
Important
Module programming must be done using Pass-Thru method.
For vehicles produced for sale in Mexico, it is necessary to reprogram the BCM with a new speed calibration when installing 20" accessory wheels.
These calibrations are not selectable on a Tech 2(R) and require a VCI number from Techline(R) Customer Support Center (TCSC). Contact TCSC.
Record this number on the form. Use the Service Programming System (SPS).
Checking and Clearing DTCS After Reprogramming
Checking and Clearing DTCs After Reprogramming
DTCs codes may be set as a result of the programming process. In most cases the codes can be cleared using the Tech 2(R) and following the
procedure listed below.
- Install the Tech 2(R) to the vehicle.
- Turn the ignition ON with engine OFF.
- Enter "Diagnostics" and build vehicle according to model year, vehicle line, etc.
- Select "Vehicle Control Systems."
- Select correct engine.
- Select "Vehicle DTC Information."
- Select "DTC Display." Scan tool will check all modules for any DTCs that are set.
- Select "View all DTCs."
- Select "Clear DTCs."
10. Press the "exit" key to escape.
Front Stabilizer Shaft Replacement
Front Stabilizer Shaft Replacement
Installing the larger (32 mm) diameter front stabilizer shaft is required only on the vehicles listed below. This will be installed for vehicle handling
purposes. Replace the front stabilizer shaft with GM��P/N��19166517, using the procedure listed below.
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- Saturn OUTLOOK AWD w/18" tires
- GMC Acadia AWD w/18" tires
- Buick Enclave AWD w/18" tires
- Buick Enclave AWD w/19" tires
Notice
Secure the steering wheel utilizing a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the
SIR system. The steering wheel must be secured in position before disconnecting the following components:
- The steering column
- The intermediate shaft
- The steering gear
After disconnecting these components, do not turn (steer) the front tires/wheels/knuckles. Failure to follow these procedures may cause improper
alignment of some components during installation and result in possible damage to the SIR coil.
- Raise and support the vehicle.
- Remove the front tires and wheels.
- Reposition the intermediate shaft boot and remove the bolt (1) attaching the intermediate shaft to the steering gear.
- Remove the nut (3) and disconnect the stabilizer shaft links at the stabilizer shaft.
- Position adjustable jack stands underneath the left and right side at the rear of the front cradle.
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- Remove the nut (2) and the right underbody side rail front plastic extension.
- Remove the left and right frame reinforcement mounting bolts. Left side shown, right side similar.
- Loosen the rear frame mounting bolts (1).
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9. Lower the frame (1) from the frame rail (2) until enough clearance is gained to remove the stabilizer shaft.
10. Remove both left and right stabilizer shaft insulators bracket bolts (1).
- Remove the left and right brackets (2) and insulators (3) from the stabilizer shaft.
- . Remove the stabilizer shaft from the right side (passenger side) of the vehicle. Maneuver the stabilizer shaft so it clears the underbody
components.
- Position the new stabilizer shaft on the frame.
- . Install the left and right stabilizer shaft insulators and brackets.
- . Install both left and right stabilizer shaft insulators bracket bolts.
Tighten
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Tighten the insulator bracket bolts to 50 Nm (37 lb ft).
- Using the jack stands, raise the front cradle into position.
- . Tighten the rear frame mounting bolts (1).
Tighten
Tighten the frame to body bolts to 100 Nm (74 lb ft) plus 90 degrees.
18. Install the left and right frame reinforcement mounting bolts.
Tighten
Tighten the reinforcement bolts to 50 Nm (37 lb ft).
19. Remove the adjustable jack stands.
20. Install the right underbody side rail front plastic extension and nut.
Tighten
Tighten the nut to 11 Nm (97 lb in).
21. Install the intermediate shaft bolt.
Tighten
Tighten the intermediate shaft bolt to 22 Nm (16 lb ft).
- Install the intermediate shaft boot into position.
- . Install the front tires and wheels.
- . Lower the vehicle.
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