Manufacturer communication — 2006 GMC YUKON DENALI XL

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

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  GM Passenger Cars and Light Duty Trucks 2000 2018

• A Generation 3, 4 or 5 Hunter Road Force Balancer is designated as essential dealer equipment, effective February 2017 (May 2017 for Canada).

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  Effective February 2017 (May 2017 for Canada), a Generation 3, 4 or 5 Hunter Road Force Balancer is designated as Essential Dealer Equipment

Possible causes

• Excessive Road Force can also be produced by 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 must be performed on every assembly so that centering errors are not introduced into the measurement.

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

2. Because tires can be 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.

3. On flangeless wheels the 180 Matching procedure can be used with the tire still on the wheel, on a Hunter 3rd, 4th or 5th generation machine.

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   On flangeless wheels, the 180 Matching procedure can be used when using a Hunter 3rd, 4th or 5th generation machine.

Repair

• In the 180 Matching procedure, use a tire changer to rotate the rim 180 degrees relative to the tire, aligning the "V" mark with the valve stem.

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

Caution

• When mounting a GM wheel on a balancer, always center it 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.