# Service bulletin 21\-009\-25 REV. C

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: 11020636
- Published by NHTSA: 2025\-07\-09
- Manufacturer's number: 21\-009\-25 REV. C
- Manufacturer's date: 2025\-07\-04
- NHTSA component: POWER TRAIN

## NHTSA's summary

850RE D Clutch Repair Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must have at least 11,265 km \(7,000 mi.\) and exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P0733\-00 \- Gear 3 Shift Incorrect Ratio. ● P1DA8\-00 \- Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92\-00 \- Incorrect Gear Ratio \- Clutch 4 Defective. Customers may also comment on one or more of the following: ● Transmission slips when shifting. ● Vehicle will not move in reverse. ● Vehicle will not shift higher than third gear This bulletin involves replacing the D clutch.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020636-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020636-9999.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P0733, P1D92, P1DA8

## Vehicles listed

- 2020 to 2023 CHRYSLER 300
- 2020 to 2023 DODGE CHALLENGER
- 2020 to 2023 DODGE CHARGER
- 2020 to 2025 DODGE DURANGO
- 2020 to 2025 JEEP GLADIATOR
- 2020 to 2024 JEEP GRAND CHEROKEE
- 2021 to 2024 JEEP GRAND CHEROKEE 4XE
- 2021 to 2024 JEEP GRAND CHEROKEE L
- 2022 JEEP GRAND WAGONEER
- 2022 JEEP WAGONEER
- 2020 to 2025 JEEP WRANGLER
- 2020 to 2025 RAM 1500

## Recalls for the same vehicles and component

- [26V413000](/recalls/nhtsa/26V413000.md), 2026-06-30: POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)
- [24V572000](/recalls/nhtsa/24V572000.md), 2024-08-01: POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE:SOFTWARE
- [2024325](/recalls/tc/2024325.md), 2024-06-06: Powertrain
- [24V413000](/recalls/nhtsa/24V413000.md), 2024-06-06: POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION
- [23V641000](/recalls/nhtsa/23V641000.md), 2023-09-18: POWER TRAIN:MANUAL TRANSMISSION
- [23V640000](/recalls/nhtsa/23V640000.md), 2023-09-18: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
- [2023335](/recalls/tc/2023335.md), 2023-06-08: Powertrain
- [23V265000](/recalls/nhtsa/23V265000.md), 2023-04-13: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)
- [2023089](/recalls/tc/2023089.md), 2023-02-23: Powertrain
- [23V116000](/recalls/nhtsa/23V116000.md), 2023-02-23: POWER TRAIN:CLUTCH ASSEMBLY

## 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 \(850RE Transmission Only\)
- [18\-071\-26 REV. A](/bulletins/11038312.md), 2026-10-07, Service bulletin: POWER TRAIN. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● \*\*P2237\-00 \- O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1. ● P2240\-00 \- O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1. ● P2251\-00 \- O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. ● P2254\-00 \- O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1. ● P2243\-00 \- O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1. ● P2247\-00 \- O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1. ● P015B\-00 \- O2 Sensor Delayed Response \- Lean To Rich Bank 1 Sensor 1. ● P015D\-00 \- O2 Sensor Delayed Response \- Lean To Rich Bank 2 Sensor 1. ● P0E7C\-00 \- Coolant Bypass Valve "B" Control Circuit Low. ● P0E7D\-00 \- Coolant Bypass Valve "B" Control Circuit High. ● P0E7E\-00 \- Coolant Bypass Valve "B" Control Circuit Range/Performance. ● P0E7F\-00 \- Coolant Bypass Valve "B" Control Circuit Stuck/Open. ● U063C\-00 \- Lost Communication With Coolant Bypass Valve Actuator "B". ● P0100\-00 \- Mass Or Volume Air Flow Sensor "A" Circuit. ● P0101\-00 \- Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance. ● P0461\-00 \- Fuel Level Sensor "A" Circuit Range/performance. ● P0072\-00 \- Ambient Air Temperature Sensor Circuit "A" Low. ● P062B\-00 \- Internal Control Module Fuel Injector Control Performance. ● B1810\-00 \- Driver Door Shorted Low. ● B25C7\-00 \- Redundant Driver Door Shorted Low.\*\* ● U0104\-00 \- Lost Communication With Cruise Control Module \(NA Market Only\) \(In Active or Stored status\). ● U0405\-00 \- Invalid Data Received From Cruise Control Module \(NA Market Only\) \(In Active or Stored status\). NOTE: Vehicles setting DTCs U0405\-00 and U0104\-00 may experience an inability to be cleared.
- [114741](/bulletins/11037596.md), 2026-09-30, Service bulletin: POWER TRAIN. TRANSMISSION KIT \- WITH TORQUE CONVERTER
- [114738](/bulletins/11037594.md), 2026-09-30, Service bulletin: POWER TRAIN. TRANSMISSION KIT \- WITH TORQUE CONVERTER
- [114737](/bulletins/11037593.md), 2026-09-30, Service bulletin: POWER TRAIN. TRANSMISSION KIT \- WITH TORQUE CONVERTER
- [9100904](/bulletins/11037349.md), 2026-09-17, Service bulletin: POWER TRAIN. Shifter If shifter is having trouble shifting between 1st and 2nd gear, then adjust cables as described in service library.
- [S2418000012 REV.C](/bulletins/11037155.md), 2026-09-08, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. Mil On/Check Engine Lamp \(CEL\) On, Engine Runs Rough
- [18\-077\-26](/bulletins/11036359.md), 2026-08-26, Service bulletin: POWER TRAIN; ENGINE. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● P0300 \- Multiple Cylinder Misfire. Customers may experience one of the following: ● Vehicle runs rough on initial cold start only after an overnight or extended soak. \*\*This bulletin involves reprogramming the PCM with the latest available software.\*\*
- [18\-071\-26](/bulletins/11035321.md), 2026-07-29, Service bulletin: POWER TRAIN. Flash: Powertrain Control Module \(PCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● \*\*U0104\-00 \- Lost Communication With Cruise Control Module \(NA Market Only\) \(In Active or Stored status\). ● U0405\-00 \- Invalid Data Received From Cruise Control Module \(NA Market Only\) \(In Active or Stored status\). NOTE: Vehicles setting DTCs U0405\-00 and U0104\-00 may experience an inability to be cleared.\*\* ● P06DD\-00 \- Engine Oil Pressure Control Circuit Performance/Stuck Off. ● P0073\-00 \- Ambient Air Temperature Sensor Circuit "A" High. ● P0071\-00 \- Ambient Air Temperature Sensor Performance. ● P2C90\-00 \- Crankcase Ventilation System \- Hose "A" Disconnected. ● P1CEA\-00 \- Boost Side EVAP Purge System Performance. ● P05BD\-00 \- Stop\-start Mode Switch Range/Performance. ● P00C6\-00 \- Fuel Rail Pressure Too Low \- Engine Cranking. ● U0673\-00 \- Lost Communication With Ion Sense Module. ● P00C6\-00 \- Fuel Rail Pressure Too Low \- Engine Cranking \- in ACTIVE or STORED status. ● P0325\-00 \- Knock/Combustion Vibration Sensor 1 Circuit \- in ACTIVE or STORED status. ● P0330\-00 \- Knock/Combustion Vibration Sensor 2 Circuit \- in ACTIVE or STORED status. ● P032A\-00 \- Knock\-Combustion Vibration Sensor C Circuit \- in ACTIVE or STORED status. ● P018B\-00 \- Fuel Pressure Sensor "B" Circuit Range/Performance \- in ACTIVE or STORED status. ● P2AF6\-00 \- Starter Relay 3 Stuck Off \- in ACTIVE or STORED status. ● P0300\-00 \- Multiple Cylinder Misfire \- in ACTIVE or STORED status set during cold start catalyst heating. ● P0301\-00 \- Cylinder 1 Misfire \- in ACTIVE or STORED status set during cold start catalyst heating. ● P0302\-00 \- Cylinder 2 Misfire \- in ACTIVE or STORED status set during cold start catalyst heating. ● P0303\-00 \- Cylinder 3 Misfire \- in ACTIVE or STORED status set during cold start catalyst heating. This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.
- [113528](/bulletins/11035187.md), 2026-07-23, Service bulletin: POWER TRAIN. SHAFT \- AXLE HALF

JSON: [/v1/bulletins/11020636](/v1/bulletins/11020636)

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