Customer Satisfaction 99092 - Front Suspension Alignment Variability
| Subject: | 99092 -- Front Suspension Alignment Variability |
| Models: | 1999-2000 GMC Yukon Denali |
| 1999-2000 Cadillac Escalade |
Important: Please retain this DCS bulletin in your permanent files. No campaign bulletin will be mailed.
Some 1999-2000 luxury models GMC Yukon Denali and Cadillac Escalades may exhibit variations in front suspension alignment that can result in vehicle pull either to the right or to the left. This condition can result in customer dissatisfaction.
To prevent the possibility of this condition occurring, dealers are to road test vehicles in dealer inventory and align, if necessary.
Vehicles Involved
Involved are certain 1999-2000 luxury model GMC Yukon Denali and Cadillac Escalade vehicles in dealer inventory and built within these VIN breakpoints:
Year | Division | Model | Plant | From | Through |
|---|---|---|---|---|---|
1999 | GMC | Yukon Denali | Arlington | XR900001 | XR921681 |
2000 | GMC | Yukon Denali | Arlington | YR100009 | YR155277 |
1999 | Cadillac | Escalade | Arlington | XR400001 | XR419850 |
2000 | Cadillac | Escalade | Arlington | YR100005 | YR155280 |
Important: Dealers should confirm vehicle eligibility through VISS (Vehicle Information Service System) prior to beginning campaign repairs. [Not all vehicles within the above breakpoints may be involved.]
Involved vehicles have been identified by Vehicle Identification Number. Dealer listings will not be provided. Verify eligibility through VISS.
Parts Information
Refer to GM bulletin #60-05-02 dated November, 1996, if necessary to obtain a new tire and for return of a damaged tire. DO NOT ORDER TIRES FROM GMSPO. To obtain a tire and to return a damaged tire, you will need to complete the GM Tire Requisition and Return Document.
Service Procedure
Important: During the drive audit, follow these guidelines:
• Adhere to safe driving practices and all traffic laws. • Drive the vehicle on a straight road at speeds of 72-97 km/h
(45-60 mph). • Take note of objectionable steering wheel pull to the right or
to the left. Ignore the steering wheel level. Driver feel should be based
on input to the hands on the wheel while the driver is watching the road. • Drive the vehicle in the opposite direction in order to determine
if the prevailing winds are causing the pull condition.
- Adjust the tire pressure to specification.
- Inspect for the proper trim heights.
- Test the brakes for drag.
- Road test the vehicle.
- Cross switch the front tire and wheel assemblies.
- Road test the vehicle.
- Switch the left front tire and wheel assembly with the left rear tire and wheel assembly.
- Road test the vehicle.
- Switch the right front tire and wheel assembly with the right rear tire and wheel assembly.
- Road test the vehicle.
- Inspect the caster/camber/toe and cross-caster/cross-camber.
- Adjust the front wheel alignment to specification. Refer to the table at the end of this procedure.
- Road test the vehicle.
- Decrease the right caster in increments of 0.5 degrees until the lead/pull is eliminated. Do not exceed 2 degrees of cross-caster. Proceed to Step 16.
- Decrease the left caster in increments of 0.5 degrees until the lead/pull is eliminated. Do not exceed 2 degrees of cross-caster. Proceed to Step 16.
- Install the GM Campaign Identification Label.
| • | If the vehicle does not lead/pull, no further action is required. Proceed to Step 16. |
| • | If the vehicle leads/pulls, proceed to Step 5. |
| • | If the vehicle does not lead/pull, no further action is required. Proceed to Step 16. |
| • | If the vehicle leads/pulls in the opposite direction, proceed to Step 7. |
| • | If the vehicle leads/pulls, proceed to Step 9. |
| • | If the vehicle does not lead/pull, replace the left rear tire, then proceed to Step 15. |
| • | If the vehicle leads/pulls, proceed to Step 9. |
| • | If the vehicle does not lead/pull, replace the right rear tire, then proceed to Step 16. |
| • | If the vehicle leads/pulls, proceed to Step 11. |
| • | If the alignment is not within specification, proceed to Step 12. |
| • | If the alignment is within specification and still leads/pulls to the left, proceed to Step 14. |
| • | If the alignment is within specification and still leads/pulls to the right, proceed to Step 15. |
| • | If the vehicle does not lead/pull, no further action is required. Proceed to Step 16. |
| • | If the vehicle leads/pulls to the left, proceed to Step 14. |
| • | If the vehicle leads/pulls to the right, proceed to Step 15. |
| Left (Degrees) | Right (Degrees) |
|---|---|---|
Caster | 2.6 | 3.5 |
Cross-Caster | -0.9 | |
Camber | 0.30 | -0.20 |
Cross Camber | 0.50 | |
Total Toe | +0.24 +/-0.20 | |
Campaign Identification label
Place a Campaign Identification Label on each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin. Each label provides a space to include the campaign number and the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a ball point pen.
Put the Campaign Identification Label on a clean and dry surface of the radiator core support in an area that will be visible to people servicing the vehicle. When installing the Campaign Identification Label, be sure to pull the tab to allow the adhesion of the clear protective covering. Additional Campaign Identification Labels for US dealers can be obtained from Dealer Support Materials by calling 1-888-414-6322 (Monday-Friday, 8:00 am to 5:00 pm EST). Ask for Item Number S-1015 when ordering.
Claim Information
Submit a Product Campaign Claim with the information indicated below.
Repair Performed | Part Count | Part No. | Parts Allow | CC-FC | Labor Op | Labor Hours* | Net Item |
|---|---|---|---|---|---|---|---|
Verify Tire Pressure, Trim Height, Brakes & Road Test Vehicle | -- | -- | NA | MA-96 | V0446 | 0.7 | NA |
Add: |
| ||||||
Cross Switch Front Tires & Road Test | -- | -- | -- | -- | -- | 0.5 | NA |
Switch Left Tires and Road Test | -- | -- | -- | -- | -- | 0.5 | NA |
Replace Rear Left Tire and Road Test | -- | -- | -- | -- | -- | 0.4 | $25 |
Switch Right Tires and Road Test | -- | -- | -- | -- | -- | 0.5 | NA |
Replace Rear Right Tire and Road Test | -- | -- | -- | -- | -- | 0.4 | $25 |
Vehicle Alignment and Road Test | -- | -- | -- | -- | -- | 2.6 | NA |
Set Cross Caster and Road Test | -- | -- | -- | -- | -- | 1.1 | NA |
Addt'l Cross Caster Adjustment and Road Test | -- | -- | -- | -- | -- | 1.1 | NA |
* -- For Campaign Administrative Allowance, add 0.1 hours to the "Labor Hours". ** -- An Administrative Allowance of $25.00 per claim for replacement of a tire is to be submitted as a Net Item. Refer to Warranty Administrative Bulletin #60-05-01A, dated May, 1996. | |||||||
Refer to the General Motors WINS Claims Processing Manual for details on Product Campaign Claim Submission.
Customer Notification
There will be no owner notification. Only vehicles in dealer inventory are involved.
Dealer Campaign Responsibility
All unsold new vehicles in dealers' possession and subject to this campaign MUST be held and inspected/repaired per the service procedure of this campaign bulletin BEFORE customers take possession of these vehicles.
