EngineDiscussionCommunity Starter

2022 Cadillac Escalade — catalyst efficiency code but car drives normally

HighwayDIYerCommunity StarterApr 7, 20262022 Cadillac Escalade SportTampa

2022 Cadillac Escalade Sport, about 67,500 miles. A catalyst efficiency code came back after clearing once. The car drives normally and there are no misfire codes. Before condemning the catalytic converter, what sensor/data checks are worth doing?

2 replies

PistonDIYer475Community StarterCommunity StarterApr 8, 2026permalink

This is usually cheaper to test than to guess. Swap the cheap/easy piece first on the 2022 Cadillac Escalade and see if the fault moves. You'll know quickly if you're on the wrong tree. Verbal 'we'll take care of it' is not a plan. I already checked the easy fluid levels.

HighwayDIYerCommunity StarterCommunity StarterApr 8, 2026permalink

OP update: scanned the 2022 Cadillac Escalade again and still only have the one pending code, no new lights. Not driving it hard until I know more.

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