6 people reported this problem
PCM Software Update Available to Correct Various Driveability Issues on Jeep Patriot
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Viewing 1 - 3 of 3 problem details
2008 Jeep Patriot 91,000 mi, Visitor
jeep runs rough in gear not in park or nuetral and when at a stop sign or light, the motor has a shake. the P540 code is on
2009 Jeep Patriot 105,000 mi, Visitor
Just the engine ligth turn on and the mechanical said the pcm is not working properly
When i stop it doesn't want to move. If i shut it off for a few minutes and start it back up its ok for a short while, then it happens again.