Manufacturer communication — 2006 GMC YUKON DENALI XL

• 2016 and prior GM passenger cars and trucks.

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  Models: 2016 and Prior GM Passenger Cars and Trucks

• Seat belt buckles do not operate and/or the seat belt warning light is on; the buckle is hard to latch or unlatch, or the release button sticks.

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  This Bulletin is being published to advise dealers about seat belt buckles not operating and/or seat belt warning light illumination, as well as difficulty latching an unlatching the buckle or the buckle release button sticking.

Possible causes

• Sticky beverages spilled onto or into the buckle assembly; debris from food, candy wrappers, paper and coins can also contribute.

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  Analysis of warranty data has determined that this condition may be caused by sticky beverages being spilled onto or into the seat belt buckle assembly. Foreign debris from food, candy wrappers, paper and coins can also contribute to this condition.

Steps to confirm (in the document’s order)

• Shine a light on the latch plate insertion area of the buckle and look for debris or foreign objects.

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  1. Inspect the buckle assembly with a light shining on the latch plate insertion area. Look for any debris or foreign objects in the buckle.

Repair

1. If debris is seen, try to vacuum it out, then latch and unlatch the belt; if it works properly, do not replace the buckle assembly.

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   2. If any debris or foreign objects are observed, try to vacuum out the item. After the foreign material is removed, latch and unlatch the seat belt. If the system functions properly, do not replace the seat belt buckle assembly.

2. If not corrected, inspect the buckle for sticky residue; if found, the buckle assembly must be replaced at the customer's expense.

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   3. If the condition has not been corrected, inspect the buckle assembly for any sticky residue. If sticky residue is found, inform the customer that a substance was spilled on the seat belt buckle assembly causing the malfunction. The buckle assembly will need to be replaced at the customer's expense.

Caution

• Never insert anything but the latch plate into the buckle, do not dig anything out with a tool, and never wash out a buckle to remove a spilled liquid because this may damage it.

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  Important: Never insert anything other than the seat belt latch plate into the buckle assembly. Do not attempt to dig anything out of a buckle with a tool. Never try to wash out a buckle to remove a spilled liquid as this may damage the buckle.

• This is not a manufacturing defect and is not covered by the new vehicle warranty.

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  Point out the fact that this is not a manufacturing defect and is not covered by the new vehicle warranty.