# Service bulletin 2104220

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: 10221760
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 2104220
- Manufacturer's date: 2020\-07\-10
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM; EXTERIOR LIGHTING

## 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 the following Diagnostic Trouble Code \(DTC\) has been set:P1614\-00 \- ECU Reset\-Recovery Occurred.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10221760-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10221760-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Lighting, Transmission and driveline, Automatic transmission, Software, Transmission control module

## Trouble codes named

P1614

## Vehicles listed

- 2020 JEEP CHEROKEE

## Other bulletins for the same vehicles and component

- [BulletinA](/bulletins/10240002.md), 2023-07-31, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Customer Satisfaction Notification ZD7 \- Radio Software Update
- [1806423](/bulletins/10239967.md), 2023-07-31, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. 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.
- [1807922](/bulletins/10228031.md), 2022-12-19, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR; POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; PARKING BRAKE; EXTERIOR LIGHTING. 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: P1D83 \- Implausible Engine Oil Temperature Signal Received. P2610 \- PCM Internal Engine Off Timer Performance. Customers may experience one or more of the following: An audible clunk after applying throttle from a coasting condition, predominantlyin fifth and sixth gear while driving 48 \- 72 kph \(30 \- 45 mph\). Software was updated to better address this condition. A message on the instrument cluster stating ?Speed limiter ready? afterthe first press of the speed limiter button and the Active Vehicle Speed Limiter \(AVSL\) is inoperative\(Equipped with NH2 Sales Code Only\). Inform the customer after the software update thatthe proper operative will be when the customer presses the speed limiter button twice, a messageon the instrument cluster stating ?Speed limiter ready? and the AVSL feature will work correctly \(Equipped with NH2 Sales Code Only\).
- [0815022](/bulletins/10225261.md), 2022-10-31, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Flash: Heating Ventilation and Air Conditioning \(HVAC\) Updates This bulletin involves reprogramming the HVAC module with the latest available software. Customers may experience the following: During a remote start, the heated wheel, seat, mirrors and/or the ElectricBack Light \(EBL\) may not turn on.
- [1805620](/bulletins/10221776.md), 2022-09-26, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; PARKING BRAKE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest available software. Customers may also experience the following condition:When the cruise control is engaged and the Active Vehicle Speed Limiter \(AVSL\) button is pressed, Instrument Panel Cluster \(IPC\) display skips ?Cruise Control Canceled? message and displays ?Speed Limiter Ready?. In addition the following software enhancement are included:Improved idle after a hot restart.
- [S2125000002](/bulletins/10221288.md), 2022-09-26, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Customer complaint includes a Mil\-on condition. Upon further investigation, one or more of the following fault codes may be set in the PCM:
- [1802121](/bulletins/10220617.md), 2022-09-26, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. 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 the following Diagnostic Trouble Code \(DTC\).P2610 \- PCM Internal Engine Off Timer Performance. Customers may experience one or more of the following:An audible clunk after applying throttle from a coasting condition, predominantly in fifth and sixth gear while driving 48 \- 72 kph \(30 \- 45 mph\).Software was updated to better address this condition. A message on the instrument cluster stating ?Speed limiter ready? after the first press of the speed limiter button and the Active Vehicle Speed Limiter \(AVSL\) is inoperative\(Equipped with NH2 Sales Code Only\).Inform the customer after the software update that the proper operative will be when the customer presses the speed limiter button twice, a message on the instrument cluster stating ?Speed limiter ready? and the AVSL featurewill work correctly \(Equipped with NH2 Sales Code Only\).
- [0809921](/bulletins/10212486.md), 2022-05-31, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. UAQ and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 39.5 Customers may experience one or more of the following: Intermittent, black radio display screen. Intermittent, radio freezes. Bluetooth® pairing and/or connection issues. Lost radio presets. Radio channels change by itself. SXM icon inoperative. In addition, the following enhancement are included in this update:Enables map updates.
- [S2125000002](/bulletins/10212447.md), 2022-05-31, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Customer complaint includes a Mil\-on condition. Upon further investigation, one or more of the following fault codes may be set in the PCM:
- [18\-090\-21](/bulletins/10204382.md), 2021-12-13, Service bulletin: ELECTRICAL SYSTEM; FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM; EXTERIOR LIGHTING; PARKING BRAKE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest available software. A small number of 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 \(DTCs\): P2172 \- High Airflow/Vacuum Leak Detected \(Instantaneous Accumulation\). P02EE \- Cylinder 1 Injector Circuit Performance. P02EF \- Cylinder 2 Injector Circuit Performance. P02F0 \- Cylinder 3 Injector Circuit Performance. P02F1 \- Cylinder 4 Injector Circuit Performance. Customers may also experience the following condition:When the cruise control is engaged and the Active Vehicle Speed Limiter \(AVSL\) button is pressed, Instrument Panel Cluster \(IPC\) display skips ?Cruise Control Canceled? message and displays ?Speed Limiter Ready?. In addition the following software enhancement are included:Improved idle after a hot restart.

JSON: [/v1/bulletins/10221760](/v1/bulletins/10221760)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%202104220&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10221760&vehicle=Service%20bulletin%202104220)