Jeep Oil Temperature Too Low

This bulletin applies to 2015 Jeep Wrangler vehicles built on or before March 16, 2015 and equipped with a 3.6L engine and 6-speed manual transmission, that exhibit a too-low engine oil temperature after an extended idle. The MIL may be on. DTC P1239 (engine oil temp too low) may be stored.

Information courtesy of Mitchell 1

Mike Mavrigian

Jan. 3, 2023

Reprogram the PCM with the latest calibration using software level 15.04 or higher.

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.