Service bulletin 21-047-20

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)
Type	Service bulletin
NHTSA id	10181632
Published by NHTSA	2020-10-26
Manufacturer's number	21-047-20
Manufacturer's date	2020-09-25
NHTSA component	POWER TRAIN

NHTSA's summary

Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set:P1D5B - Supply Sensor C -VS3 - Circuit Voltage Out Of Range.

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

P1D5B

Vehicles listed
JEEP RENEGADE	2019, 2020

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

Other bulletins for the same vehicles and component
21-040-25	2025-10-08. Service bulletin. 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.
09-005-25	2025-03-25. Service bulletin. "Various Models - Engine Valley Cap (Flywheel Side) - Oil Leakage - Service Solution Customers may experience the following: ● Oil leaks from the engine compartment, engine/transmission coupling. This bulletin supersedes Technical Service Bulletin (TSB) 09-021-24, date of issue November 23, 2024, which should be removed from your files. All revisions are highlighted with asterisks and include new Labor Times."
0804323	2024-01-02. Service bulletin. Power Folding Mirror Inoperative The customer may describe the power folding mirrors may intermittently not power fold or unfold. This bulletin involves replacing the power folding mirror/window switch assembly on the door.
0804323	2023-09-25. Service bulletin. Power Folding Mirror Inoperative The customer may describe the power folding mirrors may intermittently not power fold or unfold. This bulletin involves replacing the power folding mirror/window switch assembly on the door.
1805723	2023-07-31. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? P1061 - Cylinder 1 Oil Supply Solenoid Valve Stuck. ? P1065 - Cylinder 1 Oil Supply Solenoid Valve Switch On Time Out Of Range. ? P1062 - Cylinder 2 Oil Supply Solenoid Valve Stuck. ? P1067 - Cylinder 2 Oil Supply Solenoid Valve Switch On Time Out Of Range. ? P1063 - Cylinder 3 Oil Supply Solenoid Valve Stuck. ? P1069 - Cylinder 3 Oil Supply Solenoid Valve Switch On Time Out Of Range. ? P1471 - Catalyst Protection (Bank 1). ? P0301 -Cylinder 1 Misfire. ? P0302 - Cylinder 2 Misfire. ? P0303 - Cylinder 3 Misfire. ? P0304 - Cylinder 4 Misfire. ? P1064 - Cylinder 4 Oil Supply Solenoid Valve Stuck. ? P106B - Cylinder 4 Oil Supply Solenoid Valve Switch On Time Out Of Range. ? P2110 - Electronic Throttle Control System Bank 1 Forced Limited RPM. ? P2173 - High Airflow/Vacuum Leak Detected (Slow Accumulation). ? P0607 - Control Module Performance. In addition, the customers may experience one or more of the following: ? Engine Stop/Start does not work as expected and it is often automatically deactivated (Enlarged Europe Only). ? Poor engine performance. This bulletin involves reprogramming the PCM with the latest available software.
1800623	2023-07-31. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience the following: ? Engine Stop/Start does not work as expected and it is often automatically deactivated. Customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? P2110 - Electronic Throttle Control System Bank 1 - Forced Limited RPM. ? P2173 - High Airflow/Vacuum Leak Detected (Slow Accumulation). ? U0100 - Lost Communication With ECM/PCM. ? P0456 - EVAP System Small Leak. NOTE: If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system. ? P1CEA - Boost Side EVAP Purge System Performance. In addition, the customer may also experience the following: ? The vehicle will not crank if the ECM gets hotter than 50 °C (122 °F). ? Intermittent no-crank when first starting the vehicle. The following DTC has been changed from a one trip fault to a two trip fault: ? P0607 - ECU Internal Performance. This bulletin involves reprogramming the PCM with the latest available software.
1805123	2023-05-30. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTC)s: ? P24D1-00 - Particulate Matter Sensor Regeneration Incomplete. NOTE: This software update will help prevent P24D1-00 from setting. Refer to all applicable published service bulletins for detailed repair procedures and labor times regarding this DTC. ? P2002-00 - Diesel Particulate Filter (DPF) Efficiency based on Particulate Matter (PM) sensor monitoring. NOTE: If DTC P2002 is present it will require DPF and PM sensor replacement. Refer to all applicable published service bulletins for detailed repair procedures and labor times regarding Diesel Particulate Matter Sensor (DPM) replacement. ? P24AE-00 - Particulate Matter Sensor Circuit. ? P24B0-00 - Particulate Matter Sensor Circuit Low. ? P24B1-00 - Particulate Matter Sensor Circuit High. ? P24B2-00 - Particulate Matter Sensor Circuit Intermittent. ? P24D0-00 - Particulate Matter Sensor Supply Voltage Circuit Low. ? P24D3-00 - Particulate Matter Sensor Supply - Circuit Voltage Above Threshold. ? P24AF-00 - Particulate Matter Sensor Circuit Performance. ? P24B5-00 - Particulate Matter Sensor Heater Control Circuit Low. ? P24B6-00 - Particulate Matter Sensor Heater Control Circuit High. ? P24B7-00 - Particulate Matter Sensor Heater Resistance. ? P24DA-00 - Particulate Matter Sensor Exhaust Sample Error Bank 1. ? U05A4-00 - Particulate Matter Sensor Received Invalid Data From ECM - PCM. ? U02A3-00 - Loss of Communication with PM Sensor Module. ? P24B2-00 - Particulate Matter Sensor Circuit Intermittent. Customers may also experience the following: ? More frequent Diesel Particulate Filter (DPF) regenerations. NOTE: This software update will help reduce smoke emissions and reduce DPF regeneration events. This bulletin involves reprogramming the PCM wit
0804323	2023-04-17. Service bulletin. Power Folding Mirror Inoperative The customer may describe the power folding mirrors may intermittently not power fold or unfold. This bulletin involves replacing the power folding mirror/window switch assembly on the door.
1801621	2023-01-17. Service bulletin. Flash: Powertrain Control Module (PCM) Updates
1804721	2023-01-17. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience the following: After a short trip and shutting the engine off for 5 - 10 minutes, vehicle exhibits a long crank/start condition.