Manufacturer communication — 2006 GMC YUKON DENALI XL

• Applies to 2024 and prior GM passenger cars and trucks.

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  2024 and Prior GM Passenger Cars and Trucks

Possible causes

• Vibration shortly after tires are mounted may be caused by 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.

• Wheel slip is most common on clear coated or chrome wheels with very smooth bead seat areas, but may also occur on other alloy or steel wheels.

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  Wheel slip is most common on clear coated or chrome wheels with very smooth bead seat areas, but may also occur on other alloy or steel wheels.

• One reason is 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)

• Put a temporary mark on the tire at the valve stem and drive: slip of less than one inch is probably not contributing; slip greater than one inch with a ride disturbance felt may be causing the vibration.

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  Wheel slip can be checked by placing a temporary mark on the tire at the valve stem. After driving the vehicle, if the wheel slip is less than one inch, then wheel slip is probably not contributing to a ride disturbance. 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. On the wheel, lubricate the safety humps, leave the rim flanges dry and lubricate the drop center area 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.

2. Complete the mounting within 10 minutes of applying the mounting lubricant.

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   The mounting process must be completed within 10 minutes of the application of the mounting lubricant.

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

4. After rebalancing and fitting, park the vehicle for one hour to let the lubricant evaporate.

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   Park the vehicle for one hour to allow the lubricant to evaporate.

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.

• The vehicle should not be driven aggressively (hard acceleration or braking) for up to 24 hours after tire mounting, so 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.