Service bulletin 21-042-17

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	10121794
Published by NHTSA	2017-11-03
Manufacturer's number	21-042-17
Manufacturer's date	2017-09-14
NHTSA component	ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN

NHTSA's summary

Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one of the following DTCs have been set:P0887 - TCM Power Control Circuit High. P061B - Internal Control Module Torque Calculation Performance. P072F - Stuck In Fourth Gear. P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance(2015 BU Only). P1CC9 - Unable to Engage Gear(2015 BU Only). P1D98 - Incorrect Gear Ratio Clutch B or D Defective(2015 BU Only). U0401 - Implausible Data Received From ECM-PCM(2015 BU Only). In addition, customers may notice the following condition(s):Harsh 1-2 upshift. Harsh garage shifts (Park to Reverse or Drive). CAN bus message may drop out after a network restart.

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, Transmission and driveline, Automatic transmission, Transmission control module

Trouble codes named

P061B, P0711, P072F, P0887, P1CC9, P1D98, U0401

Vehicles listed
FIAT 500X	2016
JEEP RENEGADE	2015, 2016

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

Recalls for the same vehicles and component
16V529000	2016-07-12. POWER TRAIN:AUTOMATIC TRANSMISSION

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
S2325000007	2024-01-08. Service bulletin. MIL/check engine lamp comes on after performing U90 recall PCM software update.
S2325000007	2023-10-30. Service bulletin. MIL/check engine lamp comes on after performing U90 recall PCM software update.
0801016	2022-12-19. Service bulletin. Flash: Diagnostic And System Improvements This bulletin involves updating the Body Control Module (BCM), Powertrain Control Module (PCM) and Transmission Control Module (TCM) with the latest available software. All three modules must be updated in this service action. Powertrain Control Module (PCM) 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 (DTCs): · U1424-00 - Implausible Engine Torque Signal Received. · P0335 - Crankshaft Position Sensor Circuit. · P1185 - General Pressure Sensor Correlation. · P050D - Cold Start Rough Idle. · P1CEC - Variable Valve Solenoid Valve Cold Start Closing Position 1 Timing Over-Retard. · P1CED - VAriable Valve Timing Solenoid Valve Cold Start Closing Position Timing Over-Advance. · P1607 - PCM Internal Shutdown Timer Rationality. · P2610 - PCM Internal Engine Off Timer Performance. · P0440 - General EVAP System Failure. · P0441 - EVAP Purge System Performance. · P0456 - EVAP System Small Leak. · P0455 - EVAP System Large Leak. · P0452 - EVAP Pressure Switch Stuck Closed. · P0133 - O2 Sensor 1/1 Slow Response. · C0501 - Wheel Speed Signal Left Front Rationality. · C0507 - Wheel Speed Signal Right Front Rationality. · C050D - Wheel Speed Signal Left Rear Rationality. · C0513 - Wheel Speed Signal Right Rear Rationality. · U0428-00 - Implausible Data Received From Steering Angle Sensor Module. · P1185 - General Pressure Sensor Correlation. · C0061 - Lateral Acceleration Sensor. · P0128 - Thermostat Rationality. · C0501 - Wheel Speed Signal Left Front Rationality. · C0507 - Wheel Speed Signal Right Front Rationality. · C050D - Wheel Speed Signal Left Rear Rationality. · C0513 - Wheel Speed Signal Right Rear Rationality. · C0062 - Longitudinal Acceleration Sensor In Airbag System - Signal Invalid.
1804221	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 one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P1D7F-00 - ETC Self-Learning Failure. P1523-00 - VVA Low Oil Pressure. P1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. P0141 - O2 Sensor 1/2 Heater Performance. Some customers may experience one or more of the following conditions: After a short trip and shutting the engine off for 5-10 minutes, vehicle exhibits a long crank/start condition(2016 BU EMEA only). Cruise control will not set at 32 kph (20 mph). Engine cranking times out after five seconds. Cruise control will not engage at highway speeds and when in 6th gear. A ticking noise coming from the top of the engine area. The ticking noise is heard particularly at idle (EMEA and APAC only). The following enhancements are also included: Improved purge sensor performance. Updated fuel strategy to inhibit spark plug fouling.
W84	2022-09-26. Service bulletin. Customer Satisfaction Notification W84 Powertrain Software Update
2104015	2022-09-26. Service bulletin. Tranmission shift Drivability enhancements.
2102415REVD	2022-08-22. Service bulletin. Transmission Shift And Drivability Enhancements.
2101016	2022-08-22. Service bulletin. Transmission Shift And Drivability Enhancements.
21-048-17	2022-08-08. Service bulletin. Flash: Transmission Diagnostic and Shift Enhancements AN-BQ-21-20171106 Refer to China Joint Venture (JV) released document AN-BQ-21-20171106, for details on this service action.
9003811	2022-08-08. Service bulletin. Fan Module, Radiator Cooling Before replacing the fan engine cooling fan replacement 68360299A$ for vehicles built after Oct. 20, 2016 please call Josh Langmesser @ cell (248) 821-5946. If a response is not received within 15 minutes, proceed with the necessary repair.