# Service bulletin 0805021

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: 10220973
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 0805021
- Manufacturer's date: 2021\-03\-25
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

UHN Radio Enhancements This bulletin involves updating the radio software level to R17P.2. The customer may describe the followingNot able to turn on the heated front seats. The heated seat icon on the radio display is grayed out.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10220973-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10220973-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2021 JEEP COMPASS

## Other bulletins for the same vehicles and component

- [9100900](/bulletins/11037346.md), 2026-09-17, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [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.
- [112979](/bulletins/11034369.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM. CAMERA \- REAR VIEW
- [112980](/bulletins/11034368.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM. CAMERA \- REAR VIEW
- [9100835](/bulletins/11033957.md), 2026-06-18, Service bulletin: ELECTRICAL SYSTEM. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [S2623000040](/bulletins/11033896.md), 2026-06-16, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry Exterior Door Handle Inoperative When Touched To Lock And Or Unlock.
- [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\-204\-26](/bulletins/11032819.md), 2026-05-20, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. Not applicable to vehicles built for US market. Vehicle Does Not Operate In Electric Mode And/Or Reverse Gear Is Unavailable Customers may experience one or more of the following: ● The vehicle does not operate in electric mode. ● Reverse gear is not available.
- [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

JSON: [/v1/bulletins/10220973](/v1/bulletins/10220973)

[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%200805021&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10220973&vehicle=Service%20bulletin%200805021)