Cadillac SRX engine light issue with potential gas cap and oxygen sensor concerns on Cadillac SRX

Submitted by Vehicle Owner · Dec 9, 2025
Published by RepairPal

Problem overview

Some Cadillac SRX owners report experiencing issues with the check engine light related to gas cap and oxygen sensor concerns. A common problem is a loose or damaged gas cap, which can trigger the warning indicator if it fails to seal properly. Additionally, a faulty oxygen sensor may also cause the check engine light to illuminate, with symptoms including slow acceleration, loss of power, irregular idling, and increased fuel consumption. These issues can adversely affect the vehicle's emissions system, potentially resulting in higher tailpipe emissions and unpleasant exhaust odors. Owners are advised to have their vehicles diagnosed by a professional mechanic to accurately identify the cause of the check engine light and recommend necessary repairs. Understanding these common issues can also aid in estimating repair costs and finding suitable solutions.

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Cadillac SRX vehicles with this problem

1 model year affected

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