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Service bulletin 18-090-16

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10121706
Published by NHTSA2017-11-03
Manufacturer's number18-090-16
Manufacturer's date2016-07-22
NHTSA componentPOWER TRAIN; ENGINE; ELECTRICAL SYSTEM

NHTSA's 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 (95 °F) cold start/drive.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Transmission and driveline

Trouble codes named

P0122, P0123, P0222, P0223, P0335, P0339, P0441, P0455, P2299, P2610, U1424

Vehicles listed
JEEP WRANGLER2016

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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