Check Engine Light Due to Gas Cap Issue on Cadillac CTS-V

Problem Description and Possible Solution

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

Problem Data
RepairPal Verified
Average mileage: 67,093 (55,170–88,109)
6 model years affected: 2004, 2005, 2006, 2007, more2009, 2010
10 people reported this problem
Viewing 1 - 3 of 3 comments
My computer notified me that I should "check gas cap" and now my "check engine light" is on.
My Check engine light comes on after I fill up with Gas. that has happened the last 3 times I filled up.
Front light always out