Manufacturer communication — 2006 GMC YUKON DENALI XL

• Applies to all 2003-2015 General Motors light duty trucks, utilities and vans.

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  2003-2015 All General Motors Light Duty Trucks / Utilities / Vans

• The subject is changing tire size on midsize and full size trucks and utilities.

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  Changing of tire size on midsize and full size trucks and utilities.

• For example, the latest version of TSB 03-03-10-006 or 06-03-10-011 offers 20" or 22" wheels and tires for the full-size trucks, and a calibration was developed for those specific applications.

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  A second example would be the latest version of TSB 03-03-10-006 or 06-03-10-011 - which offers 20" or 22" wheels and tires for the full-size trucks. A calibration has been developed for these specific applications in response to popular demand from our customers.

Steps to confirm (in the document’s order)

• A calibration exists for any tire that the sales guide offers for a vehicle of the same model year, body style, engine size, transmission type, axle type and suspension type.

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  If you can build a vehicle, using the sales guide, using the same model year, body style, engine size, transmission type, axle type and suspension type, any tire offered for that combination will have a corresponding calibration available.

Caution

• GM will only support a tire calibration for tires that have been sized, tested and designed for that vehicle and its applications.

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  General Motors will ONLY support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications.

• Do not use the tire size selection offered in the ABS module as a guide to which tires are applicable to the vehicle.

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  DO NOT use the information offered in the ABS module (tire size selection) as a guide to see what tires are applicable to the vehicle in question.

• Changing the tire size in the ABS module affects only the ABS wheel speed sensor calibration; it does not correct the speedometer, nor the ABS rear speed value on vehicles that get rear wheel speed from the ECM/PCM/VCM via the VSS.

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  Keep in mind, changing the tire size in the ABS module will only affect ABS wheel speed sensor calibration that are direct inputs to the ABS module. It will not correct or calibrate the speedometer's accuracy, and will not change the calibration of the ABS rear speed sensor value on vehicles that obtain rear wheel speed data from the ECM/PCM/VCM via the VSS.

• The service may be charged to the customer; it is not covered under the manufacturer's warranty.

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  Note: There may be a cost to the customer for this service. This is NOT a feature that is covered under the manufactures warranty.