# Warranty extension 12D COMBO Rev1

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: Warranty extension
- NHTSA id: 11031246
- Published by NHTSA: 2026\-04\-10
- Manufacturer's number: 12D COMBO Rev1
- Manufacturer's date: 2026\-03\-31
- NHTSA component: POWER TRAIN

## NHTSA's summary

Emissions Recall 12D \- Transmission Control Module Software \- Dealer Notification \(Revison 1\)

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031246-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031246-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2023 to 2025 JEEP COMPASS

## Other bulletins for the same vehicles and component

- [21\-042\-26 REV. B](/bulletins/11037469.md), 2026-09-23, Service bulletin: POWER TRAIN. Not applicable to vehicles built for US market. 1.5L Transmission Diagnosis Service Solution Customers may experience one or more of the following: SYMPTOM: ● Transmission warning light on and/or vehicle jerking. ● Vehicle is not shifting correctly or has no traction. This service bulletin is to provide a diagnostic guide for a transmission warning light on, vehicle jerking, not shifting correctly or no traction symptoms
- [21\-042\-26 REV. A](/bulletins/11034905.md), 2026-07-08, Service bulletin: POWER TRAIN. Not applicable to vehicles built for US market. 1.5L Transmission Diagnosis Service Solution Customers may experience one or more of the following: SYMPTOM: ● Transmission warning light on and/or vehicle jerking. ● Vehicle is not shifting correctly or has no traction. This service bulletin is to provide a diagnostic guide for a transmission warning light on, vehicle jerking, not shifting correctly or no traction symptoms.
- [21\-042\-26](/bulletins/11033330.md), 2026-06-03, Service bulletin: POWER TRAIN. Not applicable to vehicles built for US market. 1.5L Transmission Diagnosis Service Solution Customers may experience one or more of the following: ● Transmission warning light on and/or vehicle jerking. ● Vehicle is not shifting correctly or has no traction This service bulletin is to provide a diagnostic guide for a transmission warning light on, vehicle jerking, not shifting correctly or no traction symptoms.
- [12D Combo REV2](/bulletins/11032995.md), 2026-05-28, Warranty extension: POWER TRAIN. Emissions Recall 12D \- Transmission Control Module Software \- Dealer Notification \(Revison 2\)
- [08\-204\-26](/bulletins/11032819.md), 2026-05-20, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. Not applicable to vehicles built for US market. Vehicle Does Not Operate In Electric Mode And/Or Reverse Gear Is Unavailable Customers may experience one or more of the following: ● The vehicle does not operate in electric mode. ● Reverse gear is not available.
- [08\-204\-26](/bulletins/11032642.md), 2026-05-13, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. Not applicable to vehicles built for US market. Vehicle Does Not Operate In Electric Mode And/Or Reverse Gear Is Unavailable Customers may experience one or more of the following: ● The vehicle does not operate in electric mode. ● Reverse gear is not available.
- [110939](/bulletins/11030260.md), 2026-03-25, Service bulletin: POWER TRAIN. TRANSMISSION \- WITH TORQUE CONVERTER
- [110940](/bulletins/11030259.md), 2026-03-25, Service bulletin: POWER TRAIN. TRANSMISSION \- WITH TORQUE CONVERTER
- [12D COMBO](/bulletins/11030050.md), 2026-03-13, Warranty extension: POWER TRAIN. Emissions Recall 12D \- Transmission Control Module Software \- Dealer Notification
- [9100776](/bulletins/11030018.md), 2026-03-13, Service bulletin: POWER TRAIN. Before replacing the RDM, please be aware that NVH from differential gears is typical and within the acceptable limits. Do not replace RDM for NVH issue.

JSON: [/v1/bulletins/11031246](/v1/bulletins/11031246)

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