# Service bulletin 18\-009\-25

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: 11015541
- Published by NHTSA: 2025\-03\-11
- Manufacturer's number: 18\-009\-25
- Manufacturer's date: 2025\-03\-01
- NHTSA component: POWER TRAIN
- Manufacturer's system: Powertrain Control Module

## NHTSA's summary

"Flash: Powertrain Control Module \(PCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code \(DTC\): ● P2066 \- Fuel Level Sensor 2 Performance. Customers may experience the following: ● When overriding the electric park brake \(EPB\) while it remains engaged due to unbuckled seat belt in Drive or Reverse, the high torque request with the parking brake engaged may lead to Rear Drive Unit \(RDU\) damage/broken."

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11015541-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11015541-9999.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P2066

## Vehicles listed

- 2024 JEEP GRAND CHEROKEE
- 2024 JEEP GRAND CHEROKEE L

## Recalls for the same vehicles and component

- [26V413000](/recalls/nhtsa/26V413000.md), 2026-06-30: POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)

## Other bulletins for the same vehicles and component

- [S2621000004](/bulletins/11038329.md), 2026-10-07, Service bulletin: POWER TRAIN. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines \(850RE Transmission Only\)
- [113528](/bulletins/11035187.md), 2026-07-23, Service bulletin: POWER TRAIN. SHAFT \- AXLE HALF
- [113529](/bulletins/11035186.md), 2026-07-23, Service bulletin: POWER TRAIN. SHAFT \- AXLE HALF
- [21\-041\-26 REV. A](/bulletins/11034324.md), 2026-07-02, Service bulletin: POWER TRAIN. Transmission Auxiliary Oil Pump Failure Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set \*\*one or more the following Diagnostic Troubles Code \(DTCs\): ● U0287\-00 \- Lost Communication With Transmission Fluid Pump Module 1.\*\* ● P0B0D\-00 \- Electric/Auxiliary Transmission Fluid Pump Motor Control Module. Customers may also comment on the following: ● Vehicle is in limp mode. This bulletin involves replacing the transmission oil pump.
- [21\-041\-26](/bulletins/11032847.md), 2026-05-20, Service bulletin: POWER TRAIN. Transmission Auxiliary Oil Pump Failure Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code \(DTC\): ● P0B0D\-00 \- Electric/Auxiliary Transmission Fluid Pump Motor Control Module. Customers may also comment on the following: ● Vehicle is in limp mode This bulletin involves replacing the transmission oil pump.
- [S2621000003 REV.A](/bulletins/11030138.md), 2026-03-18, Service bulletin: POWER TRAIN. The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75\-PHEV, 8HP75\-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
- [S2621000003](/bulletins/11029770.md), 2026-03-05, Service bulletin: POWER TRAIN. Service transmission/check engine warning indicator for the 850RE, 8HP50, 8HP70, 8HP75, 8HP75\-PHEV transmissions that have fault codes P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
- [S2521000004 REV.B](/bulletins/11027739.md), 2026-01-21, Service bulletin: STEERING; SUSPENSION; POWER TRAIN. The customer is experiencing a clicking or pop noise from the steering knuckle and bearing area during turns while driving.
- [109161](/bulletins/11026820.md), 2025-12-23, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. SWITCH \- TRANSFER CASE, RIDE HEIGHT, TERRAIN SELECT
- [109011](/bulletins/11026815.md), 2025-12-23, Service bulletin: POWER TRAIN. VALVE BODY \& CONTROL UNIT – TRANSMISSION

JSON: [/v1/bulletins/11015541](/v1/bulletins/11015541)

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