Check Engine Light Due to Gas Cap Issue on Buick LaCrosse

Submitted by Vehicle Owner · Aug 18, 2025
Published by RepairPal

Problem overview

A Loose or worn gas cap may cause Check Engine Light to illuminate.

111 people reported this problem
39 comments
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Buick LaCrosse vehicles with this problem

11 model years affected
Average mileage: 79,828 miles
(10,200 - 192,000)

Repairs related to this problem

Check Engine Light Diagnosis & Testing

The average cost for a Buick LaCrosse Check Engine Light Diagnosis & Testing repair is between $122 and $179.

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    There are no most common Buick LaCrosse problems.
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