Have a new 2013 Wrangler Unlimited Rubicon, 1 year old, 5000 miles. At one month old, "gas cap" message and check engine light came on. OBDII reader showed codes 456 & 457. Reset codes but they returned. Took to dealer and dealer replaced cap. Drove it for 2 months and codes returned. Back to dealer; smoke tested and said they found a service bulletin the update the PCM, which they did. After 3 months, codes are back. This will be my 3rd trip to dealer. Any advice for them?
Thanks,
Bill Simi Valley, CA
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