Manufacturer communication — 2006 GMC YUKON DENALI XL

• Applies to all GM passenger cars and light duty trucks, 2000 through 2018.

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  All GM Passenger Cars and Light Duty Trucks 2000 2018

• From February 2017 a Generation 3, 4 or 5 Hunter Road Force Balancer is essential dealer equipment in the United States.

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  Effective February 2017, a Generation 3, 4 or 5 Hunter Road Force Balancer is designated as Essential Dealer Equipment in the United States.

Possible causes

• 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. The Centering Check verifies how the wheel is mounted on the balancer; centering errors can come from debris or damage to the wheel mating surface.

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   Centering Check is an inspection and verification of the wheel’s mounting to the balancer. It is used to identify possible centering errors. These errors can occur with debris or wheel mating surface damage.

2. On flangeless wheels, runout cannot be measured accurately with the tire on the wheel.

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   Flangeless wheels are commonly used today and the runout cannot be measured accurately with the tire on the wheel.

Repair

• 180 Matching: use a tire changer to rotate the rim 180 degrees relative to the tire so the "V" mark lines up with the valve stem, then 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

• The Centering Check must be performed on all assemblies.

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

• Tires can be temporarily flat-spotted, so 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.

• 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.

• When mounting a GM wheel on a balancer, always use the center pilot hole; it is the primary centering mechanism and 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.