# Service bulletin 1803121

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: 10220978
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 1803121
- Manufacturer's date: 2021\-03\-26
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

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 that one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: P16A2 \- ETC Motor Self\-Learning \(Limp Home Position\). P023E \- Turbocharger Pressure And Manifold Pressure Plausibility \(Signal Rate Of Change Below Threshold\)Euro Stage 6D Emissions \(Sales Code NBD\). Customer may also experience the following:Engine hesitation/surge feeling between 40 \- 80 kph \(25 \- 50 mph\) on acceleration but is not felt between 3500 \- 4000 rpm.\(2018 MP only\) Engine hesitation/surge feeling after a cold engine start and while driving in 2nd gear under 3000 rpm \(customer may comment that the engine doesn't give full power until after a couple minutes\)Euro Stage 6D Emissions \(Sales Code NBD\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10220978-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10220978-9999.pdf)

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

## Components

Electrical system, Transmission and driveline

## Trouble codes named

P023E, P16A2

## Vehicles listed

- 2017 to 2018 JEEP COMPASS

## Recalls for the same vehicles and component

- [2018422](/recalls/tc/2018422.md), 2018-08-09: Powertrain
- [18V524000](/recalls/nhtsa/18V524000.md), 2018-08-09: ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD
- [17V740000](/recalls/nhtsa/17V740000.md), 2017-11-21: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [2017251](/recalls/tc/2017251.md), 2017-05-10: Powertrain
- [17V301000](/recalls/nhtsa/17V301000.md), 2017-05-09: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT

## Other bulletins for the same vehicles and component

- [08\-323\-26](/bulletins/11036745.md), 2026-09-03, Service bulletin: ELECTRICAL SYSTEM. Service 4WD Light Illuminated Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● C2260\-63 \- ECU Internal Performance \- Circuit Component Protection Time\-Out Customers may also comment on the following: ● Service 4WD indicator is illuminated.
- [08\-208\-26 REV. A](/bulletins/11032842.md), 2026-05-20, Service bulletin: ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub \(no charging, no data\). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.
- [08\-208\-26](/bulletins/11032824.md), 2026-05-20, Service bulletin: ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub \(no charging, no data\). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle
- [08\-208\-26](/bulletins/11032647.md), 2026-05-13, Service bulletin: ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub \(no charging, no data\). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle
- [S2523000003 REV.A](/bulletins/11031688.md), 2026-04-29, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Door Latch, Handle And Ajar Additional Service Information.
- [08\-075\-26 REV. A](/bulletins/11031423.md), 2026-04-22, Service bulletin: ELECTRICAL SYSTEM. Rear Taillamp Condensation Clearing Procedure On occasion, vehicle exterior taillamp assemblies get fogged with a light layer of condensation on the SYMPTOM: inside of the lenses Fig. 1. This may be reported after the lamps have been turned on and brought up to operating temperature, turned off and then rapidly cooled by cold water \(such as rain, or the water from a vehicle wash\). Lens fogging can also occur under certain atmospheric conditions after a vehicle has been parked outside overnight \(i.e. a warm humid day followed by clear cool night\). This will usually clear as atmospheric conditions change to allow the condensation to change back into a vapor. Turning the taillamps on will usually accelerate this process. This bulletin is to communicate the procedure for rear taillamp condensation clearing.
- [S1408000384 REV.J](/bulletins/11030035.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. 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
- [110603](/bulletins/11030026.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. SPEAKER \- NONE
- [110604](/bulletins/11030025.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. SPEAKER \- NONE
- [9100776](/bulletins/11030018.md), 2026-03-13, Service bulletin: POWER TRAIN. Before replacing the RDM, please be aware that NVH from differential gears is typical and within the acceptable limits. Do not replace RDM for NVH issue.

JSON: [/v1/bulletins/10220978](/v1/bulletins/10220978)

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