July 23, 2016 Service bulletin

Flash: Powertrain Diagnostic And System Enhancements

Jeep technical service bulletin 18-090-16 REV. A for 2016 Jeep Grand Cherokee.

Bulletin number: 18-090-16 REV. A
Component: Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary: Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · P0441 - EVAP Purge System Performance. · P0455 - EVAP System Large Leak. · P2610 - PCM Internal Engine Off Timer Performance. · P0335 - Crankshaft Position Sensor Circuit. · P0339 - Crankshaft Position Sensor Intermittent. · P0122 - Throttle Position Sensor 1 Circuit Low. · P0123 - Throttle Position Sensor 1 Circuit High. · P0222 - Throttle Position Sensor 2 Circuit Low. · P0223 - Throttle Position Sensor 2 Circuit High. · P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible. · U1424 - Implausible Engine Torque Signal Received. The following software enhancement is also available: · Calibration to prevent engine stall after -35 °C ( -31 °F ) cold start/drive.

Owners of these vehicles have filed 78 complaints in the transmission category.

Vehicles covered

See the problems and recalls for an exact car

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.