Service bulletin 21-001-16
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 | 10224628 |
| Published by NHTSA | 2022-10-24 |
| Manufacturer's number | 21-001-16 |
| Manufacturer's date | 2016-04-01 |
| NHTSA component | EXTERIOR LIGHTING; POWER TRAIN; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING |
NHTSA's summary
Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. 2.4L Engine (Sales Code ED6/ED8) Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory: · P061B - Internal Control Module Torque Calculation Performance. In addition, some customers may experience one or more of the following conditions: · ** 5-4 coast down transmission shift quality enhancement.** · Less than desired low speed drivability and response to accelerator pedal input. · Less than desired transmission shift quality. · Transmission is slow to upshift after releasing the accelerator pedal. 3.2L Engine (Sales Code EHK) Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory: · P061B - Internal Control Module Torque Calculation Performance. In addition, some customers may experience one or more of the following conditions: · ** 5-4 coast down transmission shift quality enhancement.** · Less than desired low speed drivability and response to accelerator pedal input. · Less than desired transmission shift quality. · Less than optimal transmission shift timing, driving up and down hills. · Less than desired Engine Stop/Start re-engagement or smoothness. · Transmission is slow to upshift after releasing the accelerator pedal.
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, Lighting, Transmission and driveline
Trouble codes named
P061B
| JEEP CHEROKEE | 2016 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 23V338000 | 2023-05-11. STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK |
|---|---|
| 2023254 | 2023-04-27. Powertrain |
| 23V302000 | 2023-04-27. POWER TRAIN:AUTOMATIC TRANSMISSION |
| 2020261 | 2020-06-12. Powertrain |
| 20V343000 | 2020-06-11. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN:AUTOMATIC TRANSMISSION |
| 2018269 | 2018-05-17. Engine |
| 18V332000 | 2018-05-17. ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING |
| 2016220 | 2016-05-12. Powertrain |
| 2016219 | 2016-05-12. Powertrain |
| 16V287000 | 2016-05-11. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 08-292-26 | 2026-07-29. Service bulletin. Unable To Clear C1494-07 And C14A9-00 After 45A Recall Technicians may experience the following: SYMPTOM: ● wiTECH displays a mismatch error after performing recall 45A. |
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| S1408000384 REV.I | 2026-02-19. Service bulletin. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On |
| S1721000016 REV.B | 2025-12-23. Service bulletin. Service 4wd Light On, AWD System Service Required Message Illuminated. Diagnostic Trouble Code (DTC) C14A7-97 PTU Motor Component Or System Operation Obstructed Or Blocked. |
| S2208000138 REV.B | 2025-07-09. Service bulletin. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed |
| S1408000384 REV.H | 2025-01-28. Service bulletin. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On |
| S1408000384 REV.G | 2025-01-09. Service bulletin. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On |
| 09-018-24 | 2024-09-04. Service bulletin. "2.4L Excessive Oil Consumption XB1 Warranty Extension The customer may describe one or more of the following: ● Oil pressure low indicator lamp illumination between oil changes. ● Excessive oil consumption. This bulletin involves performing an oil consumption verification test and possibly replacing the long block." |
| S1408000384 REV.F | 2024-07-02. Service bulletin. "Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On " |
| S1408000384 | 2024-03-18. Service bulletin. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On |