# Service bulletin 18\-098\-20

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.

- Type: Service bulletin
- NHTSA id: 10183077
- Published by NHTSA: 2020\-11\-30
- Manufacturer's number: 18\-098\-20
- Manufacturer's date: 2020\-10\-10
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

Flash: Powertrain Control Module \(PCM\) Updates \- AN\-M4\-20200919 Refer to China Joint Venture \(JV\) released document AN\-M4\-20200919 for details on this service action.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183077-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183077-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline, Automatic transmission, Transmission control module

## Vehicles listed

- 2018 JEEP COMPASS

## Other bulletins for the same vehicles and component

- [1809820](/bulletins/10223966.md), 2022-10-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Flash: Powertrain Control Module \(PCM\) Updates \- AN\-M4\-20200919 Refer to China Joint Venture \(JV\) released document AN\-M4\-20200919 for details on this service action.
- [18\-044\-20](/bulletins/10176581.md), 2020-06-22, Service bulletin: FUEL SYSTEM, GASOLINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest available software. Customers may experience one or more of the following conditions: Intermittent Engine Stop/Start \(ESS\) operation \(Sales Code ECL only\). Reduced battery life \(Sales Code ECL only\). Hard or no start condition \(under certain conditions after the fuel tank has been filled with a different fuel type\). False low oil pressure lamp illuminated in the cluster. A hard or no start condition when using only E22 fuel. Oil change message was displayed at the wrong time. When Adaptive Cruise Control \(ACC\) is illuminated, the normal cruise control active message is displayed \(Sales Code NHZ\). Additional enhancement included in this software: Alternator Smart Charging calibration improvements.
- [18\-080\-19](/bulletins/10168491.md), 2019-12-02, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience excessive oil consumption between oil change intervals.
- [18\-072\-19](/bulletins/10168466.md), 2019-12-02, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Flash: Powertrain Control Module \(PCM\) Updates \- AN\-M4\-18\-20191010 Refer to China Joint Venture \(JV\) released document AN\-M4\-18\-20191010, for details on this service action.
- [21\-024\-19](/bulletins/10162545.md), 2019-07-15, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Transmission Control Module \(TCM\) Update This bulletin involves reprogramming the Transmission Control Module \(TCM\) with the latest available software. Customers may experience the following: Malfunction Indicator Lamp \(MIL\) illumination, Electronic Vehicle Information Center \(EVIC\) message states ?Service Transmission? and transmission intermittently goes into neutral with PRNDL flashing when vehicle is stopped. The vehicle may or may not resume normal transmission operation after cycling the shifter or ignition. Customer may notice poor shift quality before engine/trans has reached normal operating temperature.

JSON: [/v1/bulletins/10183077](/v1/bulletins/10183077)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2018-098-20&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10183077&vehicle=Service%20bulletin%2018-098-20)