Manufacturer communication — 2006 GMC YUKON DENALI XL

• Applies to 2015 and prior GM passenger cars and trucks.

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  2015 and Prior GM Passenger Cars and Trucks

• Vibration shortly after tires are mounted may come from the tires slipping on the wheels, which moves the imbalance point of the tire away from the weight location.

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  A customer concern of vibration shortly after having a tire or tires mounted may be caused by slippage of the tires on the wheels, placing the imbalance point of the tire away from the weight location.

Possible causes

• Wheel slip occurs when the tire slips and rotates on the wheel during acceleration or braking.

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  Wheel slip is a condition that occurs when the tire slips and rotates on the wheel during acceleration or braking.

• It is usually caused by an excessive amount of lubricant or lubricant applied in the wrong locations.

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  Excessive amount of lubricant used or lubricant applied in the wrong locations.

Steps to confirm (in the document’s order)

1. Check for wheel slip by placing a temporary mark on the tire at the valve stem.

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   Wheel slip can be checked by placing a temporary mark on the tire at the valve stem.

2. If the slip after driving is greater than one inch and a ride disturbance was felt on the test drive, wheel slip may be causing the vibration.

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   When wheel slip is greater than one inch, and you felt a ride disturbance on the test drive, then wheel slip may be causing the vibration.

Repair

1. Clean any leftover demounting lubricant from the bead seat areas of the wheel.

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   Clean the bead seat areas of the wheel of any leftover lubricant used to demount the tire.

2. On the wheel, lubricate the safety humps, leave the rim flanges dry, and lubricate the drop center only for difficult to mount tires.

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   When lubricating the wheel, lubricate the safety humps, leave the rim flanges dry and lubricate the drop center area only for difficult to mount tires.

3. Inflate the tires to 275 kPa (40 psi) when mounting, then reduce to the operating pressure.

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   Inflate the tires to 275 kPa (40 psi) when mounting, then reduce the air pressure to the desired operating pressure.

Caution

• This test is only effective if the vehicle was serviced within the last couple of hours.

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  This diagnostic test will only be effective if the vehicle has been serviced within the last couple of hours.

• Do not use products containing silicone, alcohol, petroleum based products, solvents or corrosives for cleaning or lubrication.

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  Do not use products containing silicone, alcohol, petroleum based products, solvents or corrosives for cleaning or lubrication.

• Do not drive the vehicle aggressively (hard acceleration or braking) for up to 24 hours after tire mounting, so that the lubricant can dry.

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  Also, the vehicle should not be driven aggressively (hard acceleration or braking) for up to 24 hours after tire mounting to allow the lubricant to dry.