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Service bulletin 21-040-25

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11024056
Published by NHTSA2025-10-08
Manufacturer's number21-040-25
Manufacturer's date2025-10-02
NHTSA componentPOWER TRAIN

NHTSA's summary

948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DB7-00 - Torque Converter Clutch Performance.

The document

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.

Components

Transmission and driveline

Trouble codes named

P1DB7

Vehicles listed
CHRYSLER 2002015, 2016, 2017
CHRYSLER PACIFICA2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHRYSLER PACIFICA PLUG-IN HYBRID2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHRYSLER VOYAGER2020, 2021, 2022, 2023, 2024, 2025
FIAT 500X2017, 2018, 2019, 2020, 2021, 2022, 2023
JEEP COMPASS2017, 2018, 2019, 2020, 2021, 2022, 2023
JEEP RENEGADE2019, 2020, 2021
JEEP RENEGADE2023
RAM PROMASTER2022 to 2025
RAM PROMASTER CITY2017, 2018, 2019, 2020, 2021, 2022

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

Recalls for the same vehicles and component
20184222018-08-09. Powertrain
20183932018-07-27. Powertrain
18V4930002018-07-26. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT
18V4920002018-07-26. POWER TRAIN:AUTOMATIC TRANSMISSION
20183232018-06-15. Powertrain
17V4820002017-07-28. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
20173012017-06-12. Powertrain
20172512017-05-10. Powertrain
17V3010002017-05-09. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT
20163612016-07-13. Powertrain

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
S26210000052026-10-07. Service bulletin. Shifter/ESM PRNDL Indicators Remain Off After Drained Battery Event And Jump Start
21-042-26 REV. B2026-09-23. Service bulletin. 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. A2026-07-08. Service bulletin. 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.
S2508000052 REV.B2026-07-02. Service bulletin. Service Shifter Message on the Cluster and Shifter Unable to move Out of Park
44D Combo2026-07-02. Warranty extension. Emissions Recall 44D - Hybrid Control Module Software - Dealer Notification Hybrid Control Processor (HCP) on about 69,189 of the above vehicles may have software that does not correctly report On-Board Diagnostic (OBD) legislated Integrated Dual Charging Module (IDCM) diagnostic information. The HCP is required to store OBD legislated Diagnostic Trouble Codes (DTC's) and command the malfunction indicator light (MIL) on behalf of the IDCM.
S2508000052 Rev A2026-06-18. Service bulletin. Service Shifter Message on the Cluster and Shifter Unable to move Out of Park
21-042-262026-06-03. Service bulletin. 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 REV22026-05-28. Warranty extension. Emissions Recall 12D - Transmission Control Module Software - Dealer Notification (Revison 2)
08-204-262026-05-20. Service bulletin. 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.
08-204-262026-05-13. Service bulletin. 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.