PIP: Wheel Center Caps Loose Or Missing

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Service Information
2009 Chevrolet Cobalt | Cobalt, G5 (VIN A) Service Manual | Preliminary Information | Document ID: 2321689
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#PIC5223: Wheel Center Caps Loose Or Missing - (Aug 3, 2009)


Subject: Wheel Center Caps Loose or Missing


Models: 2008 - 2009 Chevrolet Cobalt

2008 - 2009 Pontiac G5

with 16" or 17" Aluminum Wheels (RPO NZ0 or PFE)




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The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Some center wheel caps for the 2008 or 2009 Chevrolet Cobalt or Pontiac G5 with aluminum wheels may have poor retention which could cause them to be loose or fall out.

Recommendation/Instructions:
Replace any missing center caps.

Reinstall the loose or missing center cap with a bead of RTV (P/N 12378521 or equivalent [in Canada, P/N 88901148]) applied around the inside of the wheel bore and apply adhesion promoter (P/N 12378462 [in Canada, P/N 10953554]) and RTV (P/N 12378521 [in Canada, P/N 88901148]) around the inside of the cap teeth before inserting the cap. RTV should cover approximately 3 "snap fingers" on each side (2 beads) located near the "break-over" point of the snap finger ramp.

If you find one loose center wheel cap, apply RTV on all four center caps.

Important: DO NOT reinstall loose center caps or install new ones without RTV sealer.

Please follow this diagnostic or repair 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.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

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