Check Engine Light Due to Loose or Worn Gas Cap on Cadillac SRX

A loose or worn gas cap could be cause the Check Engine Light to illuminate.

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Average mileage: 85,863 (58,000–125,000)
8 model years affected: 2004, 2005, 2006, 2007, more2008, 2009, 2010, 2011
24 people reported this problem
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problem details
2004 Cadillac SRX 90,000 mi,
Check engine light comes on and want go off, disconnected battery went away, until filled the car with gas again. Came back on.
2005 Cadillac SRX 82,000 mi,
2005 SRX V8 AWD engine light came on after a fill up and noticed the gas cap felt loose (not ratcheting to a tight fit) After looking at various website threads I made mistake of buying a generic Stent brand cap. Not only didn't the rubber tether fit this cap but engine light still on. Ordered the correct cap from gmpartsdirect.com, installed and engine light went out within 10 miles of driving.
2010 Cadillac SRX 58,000 mi,
After filling up with gas...about an hour later service engine light came on
2004 Cadillac SRX 75,000 mi,
engine light comes on gas cap is loose
2008 Cadillac SRX 96,000 mi,
engine light on emission light
2004 Cadillac SRX 60,000 mi,
replace cap