# Service bulletin S2108000177RevB

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: 10223099
- Published by NHTSA: 2022\-10\-17
- Manufacturer's number: S2108000177RevB
- Manufacturer's date: 2022\-03\-17
- NHTSA component: EXTERIOR LIGHTING

## NHTSA's summary

The Odometer Is Flashing / Blinking \(Document published to dealers has a February 2022 date indicated incorrectly\)

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10223099-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10223099-9999.pdf)

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

## Components

Lighting

## Vehicles listed

- 2021 JEEP GRAND CHEROKEE
- 2022 JEEP GRAND CHEROKEE 4XE
- 2022 JEEP GRAND WAGONEER

## Recalls for the same vehicles and component

- [2022408](/recalls/tc/2022408.md), 2022-07-28: Lights And Instruments
- [22V544000](/recalls/nhtsa/22V544000.md), 2022-07-28: EXTERIOR LIGHTING:TAIL LIGHTS
- [22V327000](/recalls/nhtsa/22V327000.md), 2022-05-12: EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS
- [22V249000](/recalls/nhtsa/22V249000.md), 2022-04-14: EXTERIOR LIGHTING:TURN SIGNAL
- [2021747](/recalls/tc/2021747.md), 2021-12-10: Lights And Instruments
- [21V950000](/recalls/nhtsa/21V950000.md), 2021-12-09: EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE; EXTERIOR LIGHTING:HEADLIGHTS
- [2021630](/recalls/tc/2021630.md), 2021-10-14: Lights And Instruments
- [21V797000](/recalls/nhtsa/21V797000.md), 2021-10-14: EXTERIOR LIGHTING:HEADLIGHTS
- [2021372](/recalls/tc/2021372.md), 2021-06-11: Lights And Instruments

## Other bulletins for the same vehicles and component

- [S2308000120 REV.B](/bulletins/11002024.md), 2024-06-24, Service bulletin: ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Rain Sensing Auto Wipers and Auto on Head Lamps Inoperative
- [2300424](/bulletins/10251854.md), 2024-03-18, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses.
- [1800224](/bulletins/10251851.md), 2024-03-18, Service bulletin: ELECTRICAL SYSTEM; EXTERIOR LIGHTING; SERVICE BRAKES. 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 \(DTCs\) have been set: ? \*\*P00C6 \- Fuel Rail Pressure Too Low \- Engine Cranking Bank 1. ? P06DD \- Engine Oil Pressure Control Circuit Performance/Stuck Off.\*\* ? P0604\-00 \- Internal Control Module Random Access Memory Ram Error. ? P060C\-00 \- Internal Control Module Main Processor Performance. This bulletin involves reprogramming the PCM with the latest available software.
- [0801224](/bulletins/10251833.md), 2024-03-18, Service bulletin: EXTERIOR LIGHTING; EQUIPMENT:ELECTRICAL. Flash: Battery Pack Control Module \(BPCM\) Diagnostic and System 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 \(DTCs\) have been set: ? P0AA4\-00 \- Hybrid Battery Negative Contactor Circuit Stuck Closed. ? P0AA1\-00 \- Hybrid/EV Battery Positive Contactor ?A? Stuck Closed. Customers may also experience the following: ? The vehicle will not start. This bulletin involves updating the BPCM with the latest available software.
- [0824123A](/bulletins/10248950.md), 2024-01-16, Service bulletin: LANE DEPARTURE; SERVICE BRAKES, HYDRAULIC; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Flash: Brake System Control Module \(BSCM\) Updates 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: ? \*\*C0500\-00 \- Brake System Hydraulic Leak.\*\* Customers may also experience: ? Brake warning lamp is illuminated. ? Firm brake pedal. NOTE: Brakes will function as normal. This bulletin involves updating the BSCM with the latest available software.
- [0824123](/bulletins/10248937.md), 2024-01-16, Service bulletin: SERVICE BRAKES, HYDRAULIC; EXTERIOR LIGHTING; LANE DEPARTURE. Brake Warning Lamp On In Cold Temperatures 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: ? C00500\-00 \- Brake System Hydraulic Leak. Customers may also experience: ? A brake warning lamp on in Instrument Panel Cluster \(IPC\) and a firmer brake pedal. NOTE: Brakes will function as normal. This bulletin involves updating the BSCM with the latest available software.
- [1805823](/bulletins/10248926.md), 2024-01-16, Service bulletin: EXTERIOR LIGHTING; 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 \(DTCs\) have been set: ? P0604\-00 \- Internal Control Module Random Access Memory Ram Error. ? P060C\-00 \- Internal Control Module Main Processor Performance. This bulletin involves reprogramming the PCM with the latest available software.
- [0803123](/bulletins/10248915.md), 2024-01-16, Service bulletin: FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; POWER TRAIN; ELECTRICAL SYSTEM. Flash: Hybrid Control Processor \(HCP\) and Auxiliary Hybrid Control Processor \(AHCP\) Updates \*\*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 in the Hybrid Control Processor \(HCP\) module: ? P16F0\-00 \- SPI Comm Hardware Fault. Customer may experience one or more of the following: ? Unexpected engine start during a crank \(customer is expecting EV mode but the gas engine starts\).\*\* ? ?Service Charging System? popup when keying the vehicle to off while still in drive. ? Engine must be started twice to achieve drive ready \(at low temperatures around 30°C, 22°F\) when the vehicle was entered and started quickly. ? Radiator fan cycling while in park and with vehicle operational. May be described as ?breathing? sound from the front of the vehicle. ? "Performance Limited, Service Fuel System? popup while driving. ? Radiator fan spinning at max speed while charging. The vehicle is providing max cooling when the charging module reaches high temperature. May be described as a loud sound that disappears when the vehicle is unplugged. ? Poor cabin heat in electric mode. ? Temporary loss of cabin cooling \(\<5s\) while driving in electric mode. ? State of Charge \(SoC\) dropping lower than expected while in eSave Battery Charge mode. ? Turtle mode while refueling in hot ambient. ? Unable to enter electric mode driving while FORM is active. This bulletin involves reprogramming the HCP and AHCP or also known as Power Inverter Module \(PIM\) with the latest available software. NOTE: Additional module flashes are required for this update to be effective. The following modules are all to be updated along with this HCP and AHCP update: ? Powertrain Control Module \(PCM\). ? Transmission Control Module \(TCM\).
- [2302923](/bulletins/10248045.md), 2024-01-02, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses \(Fig. 1\) . This bulletin is to communicate the procedure for head lamp condensation clearing.
- [S2308000019](/bulletins/10247957.md), 2024-01-02, Service bulletin: EXTERIOR LIGHTING. Auto High Beams Characteristics, Auto High Beams Not Turning on When Enabled

JSON: [/v1/bulletins/10223099](/v1/bulletins/10223099)

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