This bulletin applies to 2011-2016 Jeep Compass/Patriot vehicles, where the 2.0 or 2.4L engine has been replaced.
CAUTION: Updating the PCM software or replacing the PCM on a vehicle with the incorrect replacement engine will result in a no-start condition that cannot be undone. If the engine has been replaced (where numbers do not match), do not perform a PCM flash or replace the PCM, unless it is a certified MOPAR engine built specifically for the vehicle application.
PCM update/replacement can not be completed on a vehicle with an incorrect replacement engine until the vehicle is returned to the original equipment configuration. Confirm that the last eight digits of the VIN matches the engine identification number before proceeding with PCM software updates or PCM replacement, The engine identification number (last eight digits of the VIN) is stamped on the bottom rear of the engine block near the transmission.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.