Service bulletin S2621000003 REV.A
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 | 11030138 |
| Published by NHTSA | 2026-03-18 |
| Manufacturer's number | S2621000003 REV.A |
| Manufacturer's date | 2026-03-09 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
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.
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
P0716, P0733, P07E4, P1B13, P1B14, P1D90, P1DB2, P1DB7
| ALFA ROMEO GIULIA | 2017 to 2026 |
|---|---|
| ALFA ROMEO STELVIO | 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
| CHRYSLER 300 | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
| DODGE CHALLENGER | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
| DODGE CHARGER | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
| DODGE DURANGO | 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
| JEEP GRAND CHEROKEE | 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
| JEEP GRAND CHEROKEE 4XE | 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| JEEP GRAND CHEROKEE L | 2021, 2022, 2023, 2024, 2025, 2026 |
| JEEP GRAND WAGONEER | 2022, 2023, 2024, 2025, 2026 |
| JEEP WAGONEER | 2022, 2023, 2024, 2025 |
| JEEP WAGONEER | 2026 |
| JEEP WRANGLER | 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
| JEEP WRANGLER 4XE | 2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| RAM 1500 | 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
| RAM 2500 | 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
| RAM 3500 | 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 26V413000 | 2026-06-30. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL) |
|---|---|
| 2026225 | 2026-05-07. Powertrain |
| 26V288000 | 2026-05-07. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM) |
| 2025450 | 2025-09-04. Powertrain |
| 25V297000 | 2025-05-08. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL) |
| 24V572000 | 2024-08-01. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE:SOFTWARE |
| 2024325 | 2024-06-06. Powertrain |
| 24V413000 | 2024-06-06. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION |
| 23V641000 | 2023-09-18. POWER TRAIN:MANUAL TRANSMISSION |
| 23V640000 | 2023-09-18. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| S2621000004 | 2026-10-07. Service bulletin. 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) |
|---|---|
| AOD COMBO | 2026-10-07. Service campaign. Customer Satisfaction Notification A0D – Electronic Shift Module - Dealer Notification The Electronic Shift Module (ESM) software on about 20,000 of the above vehicles may cause the rotary electronic shifter to become unresponsive. This condition may cause a "Service Shifter" message to appear on the instrument panel cluster and prevent the vehicle from starting. |
| 18-075-26 REV. A | 2026-10-07. Service bulletin. 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): ● P0111-00 - Intake Air Temperature Sensor 1 Circuit Performance (In Active or Stored status) ● P0071-00 - Ambient Air Temperature Sensor Performance (In Active or Stored status) ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High (In Active or Stored status) ● P062B-00 - Internal Control Module Fuel Injector Control Performance ● P0E7E-00 - Coolant Bypass Valve B Control Circuit (In Active or Stored status) ● P2AF6-00 - Starter Relay 3 Stuck Off (with PCR). ● P00FD - Battery B State Of Charge Performance. ● P013F-00 - O2 Sensor 2/1 Delayed Response - Lean To Rich Bank. (In Active or Stored status) ● P014A-00 - O2 Sensor 2/2 Delayed Response - Rich to Lean Bank. (In Active or Stored status) ● P013E-00 - O2 Sensor 2/1 Delayed Response - Rich to Lean Bank. (In Active or Stored status) ● P014B-00 - O2 Sensor 2/2 Delayed Response - Lean To Rich Bank. (In Active or Stored status) ● P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off.(In Active or Stored status) ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. (In Active or Stored status) ● P0071-00 - Ambient Air Temperature Sensor Performance. (In Active or Stored status) ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected. (In Active or Stored status) ● P1CEA-00 - Boost Side EVAP Purge System Performance. (In Active or Stored status) ● P05BD-00 - Stop-Start Mode Switch Range/Performance. (In Active or Stored status) ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. (In Active or Stored status) ● U0673-00 - Lost Communication With Ion Sense Module. (In Active or Stored status) Customers may also comment on one or more of the following: ● High Elevation misfire. Electronic Start Stop (ESS) inoperative or "Auto Stop/Start Not Ready" message displayed in the Instrument Panel Cluster (IPC). NOTE: **Normal Auto Stop/Start inhibit conditions should not be considered the cause of this concern. The condition is associated with DTC P2AF6.** ● "Door Ajar" message on when door is closed. ● BSCM MIL illumination request not setting the MIL in the PCM High oil level indicator illuminated on the IPC. **The following software enhancements are now available: ● Improvements to prevent misfire DTCs P0300-P0306 that may set if one of the following DTCs set: ○ P0335-00 - Crankshaft Position Sensor Circuit. ○ P0336-00 - Crankshaft Position Sensor Performance.** This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software. |
| 18-071-26 REV. A | 2026-10-07. Service bulletin. 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 | 2026-09-30. Service bulletin. TRANSMISSION KIT - WITH TORQUE CONVERTER |
| 114739 | 2026-09-30. Service bulletin. TRANSMISSION KIT - WITH TORQUE CONVERTER |
| 114738 | 2026-09-30. Service bulletin. TRANSMISSION KIT - WITH TORQUE CONVERTER |
| 114737 | 2026-09-30. Service bulletin. TRANSMISSION KIT - WITH TORQUE CONVERTER |
| 21-062-26 | 2026-09-30. Service bulletin. Transmission Rattle Customers may comment on the following: SYMPTOM: ● Rattle noise coming from the transmission. This bulletin involves inspecting and possibly tightening the transmission oil heater mounting nuts to proper specification. |
| 9100904 | 2026-09-17. Service bulletin. Shifter If shifter is having trouble shifting between 1st and 2nd gear, then adjust cables as described in service library. |