Service bulletin 08-043-20

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	10174252
Published by NHTSA	2020-04-27
Manufacturer's number	08-043-20
Manufacturer's date	2020-03-27
NHTSA component	POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE

NHTSA's summary

Flash: Comfort Seat and Wheel Module (CSWM) Enhancements This bulletin involves updating the CSWM with the latest available software. The customer may describe the following:The heated steering wheel and heated seats, turn off when Engine Stop Start (ESS) activates.

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

Electrical system, Engine, Transmission and driveline, Automatic transmission, Transmission control module

Vehicles listed
JEEP RENEGADE	2018, 2019

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
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.
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.
1809420	2022-10-17. Service bulletin. Flash: Powertrain Diagnostic and System Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software.
1804721	2022-10-17. 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.
1804421	2022-10-17. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) have been set: P1D7F-00 - ETC Self-Learning Failure.(North America only). P0456-00 - EVAP Purge System Small Leak.(North America only). P0441-00 - EVAP Purge System Performance.(North America only). P0440-00 - General EVAP System Failure. (North America only). P0455-00 - EVAP Purge System Large Leak.(North America only). P1CEA-00 - Boost Side EVAP Purge System Performance.(North America only). In addition, the following software enhancement is available: After a short trip and shutting the engine off for 5-10 minutes, vehicle exhibits a long crank/start condition(EMEA only). Updated EVAP system diagnostics.(North America only).
1805420	2022-09-26. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0456 - EVAP System Small Leak. P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1. P0016 - Crankshaft/Camshaft Timing Misalignment - Bank 1 Sensor 1. P0606 - Control Module Processor. Customers may also experience the following:Vehicle periodically may fail to start(ED6 engine only).
1803821	2022-09-26. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs have been set: 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.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 Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault to a two trip fault: P0607 - ECU Internal Performance.
18-104-20	2020-12-28. Service bulletin. Flash: Powertrain Control Module (PCM) Updates - AN-BQ-18-20200920 Refer to China Joint Venture (JV) released document AN-BQ-18-20200920, for details on this service action.
18-104-20	2020-12-21. Service bulletin. Flash: Powertrain Control Module (PCM) Updates - AN-BQ-18-20200920 Refer to China Joint Venture (JV) released document AN-BQ-18-20200920, for details on this service action.
18-094-20	2020-11-30. Service bulletin. Flash: Powertrain Diagnostic and System Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software.