Manufacturer communication — 2006 GMC YUKON DENALI XL

• The bulletin covers 2000-2015 GM Passenger Cars and Light Duty Trucks.

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  2000-2015 GM Passenger Cars and Light Duty Trucks

• By name, the list gives Yukon models only for 2015 (built without VV4), together with GMC Sierra 2500/3500.

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  2015 GMC Sierra 2500/3500, Yukon Models (Built W/O VV4)

• It concerns vehicles equipped with OnStar (RPO UE1).

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  Equipped with OnStar® (RPO UE1)

Possible causes

• OnStar subscribers who have not upgraded their hardware cannot be guaranteed OnStar service after December 31, 2015.

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  Due to this, all affected OnStar® subscribers who have not yet upgraded their hardware cannot be guaranteed OnStar® service after December 31, 2015, even if they have ordered their hardware upgrade.

Steps to confirm (in the document’s order)

• Refer to the latest version of Bulletin #15-08-44-001 to determine whether the vehicle is eligible for an upgrade, and confirm with the owner or service history whether the upgrade has been performed.

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  Refer to the latest version of Bulletin #15-08-44-001 “GM of Canada OnStar Cellular Communication Upgrade“ to determine if a vehicle is eligible for an upgrade, and confirm with the vehicle owner or check service history to determine if the upgrade has been performed.