Manufacturer communication — 2006 GMC YUKON DENALI XL

• Applies to all GM passenger cars and trucks (including medium duty), model years 2000 to 2024.

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  GM Passenger Cars and Trucks (includes Medium Duty) 2000 2024

• GM dealers are required to use the Hunter Road Force Balancer for all repairs requiring balance and Road Force measurement.

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  The Hunter road Force Balancer is required to be utilized for all repairs requiring balance and Road Force measurement (see list of Labor Operations below).

Possible causes

• Road Force is a measurement of both sidewall stiffness and how much the assembly is "egg shaped".

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  Road Force is a measurement of both sidewall stiffness and how much the assembly is “Egg Shaped.”

• Excessive Road Force can also come from incorrect tire mounting or improper bead seating to the rim.

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  Excessive Road Force can also be produced by incorrect tire mounting or improper bead seating to the rim.

Steps to confirm (in the document’s order)

1. Because tires can become temporarily flat-spotted, drive the vehicle at least 24 km (15 mi) at 89 km (55 mph (= 88.5 km/h)) or more before measuring.

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   Because tires can sometimes become temporarily flat-spotted, which will affect force variation, it is important that the vehicle be driven at least 24 km (15 mi) at 89 km (55 mph) or more prior to measuring.

2. Adjust tire pressure to the usage pressure on the vehicle's tire placard before measuring.

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   Tire pressure must also be adjusted to the usage pressure on the vehicle's tire placard prior to measuring.

3. When mounting a GM wheel on a balancer or force variation machine, always center on the wheel's center pilot hole; the bolt holes are secondary.

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   When mounting a GM wheel to a wheel balancer/ force variation machine, always use the wheel's center pilot hole. This is the primary centering mechanism on all GM wheels; the bolt holes are secondary.

4. The Centering Check must be performed on all assemblies so that errors are not induced in the process.

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   The Centering Check must be performed on all assemblies to prevent inducing errors in the process.

Repair

1. 180 Matching minimizes Road Force in the tire and wheel assembly; it needs a tire changer because the tire is repositioned about the wheel.

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   180 Matching will minimize Road Force® in the tire and wheel assembly. It requires a tire changer, as the tire will be repositioned about the wheel during the procedure.

2. Use a tire changer to rotate the rim 180 degrees relative to the tire, aligning the "V" mark with the valve stem, and mount the assembly on the balancer again.

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   6. Use a tire changer and rotate the rim 180 degrees relative to the tire, aligning the “V” mark with the valve stem. Mount the assembly on the balancer.

Caution

• Service equipment that removes tread rubber by grinding, buffing or trueing is not recommended and may void the tire warranty.

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  Any type of service equipment that removes tread rubber by grinding, buffing or trueing is NOT recommended, and may void the tire warranty.