04-05 Chevrolet and GMC Full Size Trucks and Utilities with Performance Package RPO PCX - kw accessory aftermarket appearance body GMT800 GMT820 GMT830

The following diagnosis might be helpful if the vehicle exhibits the described symptoms in the PI.

This is a product information alert. This is to advise you that full size pickups and utilities may have an after market performance package installed by an upfitter and shipped directly to dealers. This performance package appears on the invoice as RPO PCX and the order will contain a ship-thru code of VSH. This performance package is not GM warranted and any dealer installation requirements are not to be charged under PDI as the time to install is already built into the package price.

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.

(2004-05 Chevrolet Silerado, Tahoe, and Suburban) and (2004-05 GMC Serra, Yukon, and Yukon XL)

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