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2009 Cadillac CTS Check Engine Light Due to Gas Cap Issue

A loose or worn gas cap may cause check engine light to illuminate.

Affected Model Years

This issue affects Cadillac CTS model years 2004, 2005, 2006, 2007, 2009, 2010, .

11 people reported this problem

  • 2009 58,000 Miles
    My computer notified me that I should "check gas cap" and now my "check engine light" is on.
  • 2009 55,170 Miles
    My Check engine light comes on after I fill up with Gas. that has happened the last 3 times I filled up.
  • 2009 0 Miles
    Front light always out

Cadillac CTS 2009 Common Problems