Service bulletin 18-008-25 REV. A

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.

NHTSA's summary

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P08A6 - Gear Lever Position Sensor System - Multiple Sensor Correlation.** ● P0032 - O2 - Sensor 1/1 Heater Circuit High. ● P0038 - O2 - Sensor 1/2 Heater Circuit High. ● P0052 - O2 - Sensor 2/1 Heater Circuit High. ● P0058 - O2 - Sensor 2/2 Heater Circuit High. ● P1129 - Closed Loop Fueling Not Achieved-Banks 2 Upstream. ● P0152 - O2 Sensor 2/1 Circuit High. ● P0158 - O2 Sensor 2/2 Circuit High. ● P2504 - Charging System Output High. ● P0563 - System Voltage High. Customers may also comment on one or more of the following: ● Vehicle runs rough. ● "Service Transmission” message on in the Instrument Panel Cluster (IPC). ● During flat tow - Transfer case mis-shift (engine running and clutch pedal up, transmission in gear). Other software enhancements included: ● Improvements to address vehicle no starts after replacing the PCM. ● O2 heater crack improvements. ● OBD software changes. This bulletin involves reprogramming the PCM with the latest available software.

The document

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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.

Trouble codes named

P0032, P0038, P0052, P0058, P0152, P0158, P0563, P08A6, P1129, P2504

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

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