Having problems with your 2005 Buick Rendezvous ?
How to re-set fuel cap warning light. - 2005 Buick Rendezvous
Light should reset itself after a day or so, assuming the cap is now sealing the tank. If not, have autozone or advance put a scanner on to clear it--they have free scan service.
Repair Help & Product Troubleshooting for 2005 Buick Rendezvous
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