Tires/Wheels - 19 Inch Wheels Available through GM
INFORMATIONBulletin No.: 09-03-10-011A
Date: March 21, 2011
Subject: 19 Inch Accessory Wheels Available through GM Accessories
Models:
2010-2011 Chevrolet Equinox
2010-2011 GMC Terrain
Supercede:
This bulletin is being revised to add 2011 model year and update information. Please discard Corporate Bulletin Number 09-03-10-011 (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 19" 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 Bridgestone Dueler Alenza HL P235/50R19 99H, GM P/N 19190765, to be used in conjunction with the 19" accessory wheels. The Bridgestone Dueler Alenza HL tire has a Tire Performance Criteria (TPC) spec of 1343MS (molded on the sidewall), which meets or exceeds all Federal Safety guidelines.
Important
- If the vehicle was built with 19" factory wheels, it is OK to install the accessory 19" wheel, but DO NOT install the accessory 19" tire. Please re-use the 19" factory tire.
- If the vehicle was built with 17" or 18" factory wheels, ONLY install the accessory 19" tire on the 19" wheel. DO NOT install the 19" factory tire.
Mounting and Balancing
Refer to the most recent version of Corporate Bulletin Number 08-03-10-004A for proper methods for mounting, balancing and installing accessory wheels and tires.
Wheels
Wheel (Lug) Nuts
Each wheel nut should be torqued in the appropriate torque sequence (refer to graphic) and to 170 Nm (125 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. 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.
Mounting and Balancing
Refer to the most recent version of Corporate Bulletin Number 08-03-10-004A for proper methods for mounting, balancing and installing accessory wheels and tires.
The mounted and balanced wheel/tire assemblies MUST meet GM service guidelines for measured radial force variation to ensure vibration free performance.
The following radial force variation numbers for the assembly should be used as a guide:
If any wheel/tire assembly does not meet the above standards, refer to Corporate Bulletin Number 00-03-10-006F: Information on Tire Radial Force Variation (RFV) for further information on possible corrective actions.
Vehicle Modifications
Tire Label
After installing the recommended P235/50R19 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 Type/Pressure Selection
To provide a more accurate function of the Tire Pressure Monitoring System, it is necessary to update the body control module (BCM) with the correct tire type and pressure information. The factory 17" and 18" tires have a placard inflation pressure of 241 kPa (35 psi), which must be changed to 250 kPa (36 psi) when upsizing to the 19" accessory tires. Using the Global Diagnostic System (GDS 2), follow the steps listed below to select the appropriate tire type/pressure:
1. Enter "Module Diagnosis".
2. Select "Body Control Module".
3. Select "Configuration/Reset Functions".
4. Select "Tire Type/Pressure Selection".
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 body control module (BCM).
TPM Sensor Relearn Procedure
Note
If using the scan tool (GDS 2) to enable the learn mode, the EL 46079 Diagnostic Tool 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 driver information center buttons to enable the learn mode, the EL 46079 Diagnostic Tool 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 Tire Pressure Monitor equipped vehicle within close proximity. Stray signals from other tire pressure 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 tire pressure Learn Procedure away from other vehicles may 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 (GDS 2) Learn Enable Method
1. Using a scan tool (GDS 2), initiate the tire pressure Learn Mode. A double horn chirp will sound together with activated turn signal lamps indicating the Learn Mode has been enabled. The left front turn signal only will then be illuminated.
2. Starting with the left front tire, active the sensor by holding the antenna of the EL 46079 Diagnostic Tool 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 all the turn signal lamps have been activated for 3 seconds and the horn chirp has sounded, the sensor information is learned and the turn signal in the next location to be learned will illuminate.
3. After the horn chirp has sounded and the turn signal in the next location to be learned will illuminate, repeat step 2 for the remaining 3 sensors in the following order:
1. Right front
2. Right rear
3. Left rear
4. When the left rear sensor has been learned, all the turn signal lamps have been activated for 3 seconds and a double horn chirp has sounded, the learn process is complete and BCM exits the learn mode.
5. Ignition OFF, adjust all tires to the recommended pressures.
Alternate Driver Information Center Learn Enable Method
1. Ignition ON, press and release the driver information center info button on the stalk switch until the tire learn message appears on the driver information center display. Press and hold the set/reset button until all the turn signal lamps have been activated for 3 seconds and a double horn chirp sounded indicating the Learn Mode has been enabled. The left front turn signal will then be illuminated.
2. Starting with the left front tire, learn the tire pressure using one of the following methods:
- Hold the antenna of the EL 46079 Diagnostic Tool 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 all the turn signal lamps have been activated for 3 seconds and a single horn chirp sounded, the sensor information is learned and the turn signal in the next location to be learned will illuminate.
- Increase/decrease the tire pressure 8.3 kPa (1.2 psi) then wait for a horn chirp. The horn chirp may occur before or up to 30 seconds after the pressure increase/decrease. Once the horn chirp has sounded, the sensor information is learned and the turn signal in the next location to be learned will illuminate.
3. After the horn chirp has sounded the turn signal in the next location to be learned will illuminate, repeat step 2 for the remaining 3 sensors in the following order:
1. Right front
2. Right rear
3. Left rear
4. When the left rear sensor has been learned and all the turn signal lamps have been activated for 3 seconds and a double horn chirp has sounded, the learn process is complete and BCM exits the learn mode.
5. Ignition OFF, adjust all tires to the recommended pressures.
Engine Control Module (ECM) Reprogramming
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 19" wheels are installed.
When upsizing from 17" wheels only, the ECM must be reprogrammed for speedometer accuracy. Contact Techline to obtain a VCI number. Record this number on the form below. Use the Service Programming System (SPS).
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.
Calibration Information Documentation
1. Make a copy of the "Accessory Wheel and Tire Information Form" included in this bulletin.
2. Provide all information required on the form.
3. Make a copy of the completed form for the customer to keep in the vehicle along with their Owner's Manual.
4. File the original completed form in the Dealership's Vehicle Service History folder.
Important:
If original equipment tires/wheels are reinstalled, it will be necessary to reset the programming of the ECM to the original specifications.
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 New Vehicle Limited Warranty.
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 vehicle 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 labor) for the balance of the vehicle warranty, or up to 12 months/unlimited kilometers depending on month installed. For replacement after the new vehicle warranty expires, but within the 12 months/unlimited kilometers coverage, refer to claim type ZPTI guidelines.
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 00-03-10-003O for more information.
Canadian dealers should refer to GM Warranty Administration Bulletin 01-03-10-003H.
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