# Service bulletin 0809421

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: 10230141
- Published by NHTSA: 2023\-01\-17
- Manufacturer's number: 0809421
- Manufacturer's date: 2021\-05\-25
- NHTSA component: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

## NHTSA's summary

UKA and UKG Radio Enhancements This bulletin involves updating the radio software level to 1848.35. Customers may experience one or more of the following:Radio display screen flickers. Clock loses 6 seconds per day \(2019 JL with UKA\). Radio resets with RPM less than 1000 RPM \(2020 JL with UKG and 3.0L Diesel \- EXJ\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10230141-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10230141-9999.pdf)

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

## Components

Equipment and accessories

## Vehicles listed

- 2018 to 2020 JEEP GRAND CHEROKEE
- 2019 to 2020 JEEP WRANGLER

## Recalls for the same vehicles and component

- [2018593](/recalls/tc/2018593.md), 2018-10-29: Accessories
- [18V759000](/recalls/nhtsa/18V759000.md), 2018-10-29: EQUIPMENT:ACCESSORY:FLOOR MAT

## Other bulletins for the same vehicles and component

- [0802024](/bulletins/10251845.md), 2024-03-18, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS:ACCESORY POWER OUTLET/JACK/PORT/USB/SAE/CIGARETTE LIGHTER. Floor Console USB Inoperative Customers may comment on the following: ? Customer states the Apple Carplay/Android Auto? does not work or is intermittently working when their device is plugged into the center console bin USB port. This replacing the center console USB cable.
- [S238A000028](/bulletins/10251795.md), 2024-03-18, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT. Radio Black Screen, Freezing, Reset, Cutting Out Or Inoperative Intermittently
- [S248A000001](/bulletins/10251785.md), 2024-03-18, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. SOS and Assistance Call Not Working After Radio Exchange Unit Installed
- [9100276](/bulletins/10248848.md), 2024-01-16, Service bulletin: EQUIPMENT. Spring Front Upr \- Isolator Before replacing this part. Please contact FCA REDACTED CONTENT. \~ If no response in 15 minutes, proceed with repair.
- [S2323000074](/bulletins/10248565.md), 2024-01-08, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Buzz Squeak Rattle \(BSR\) From Sound Bar Or Sport Bar Area.
- [89216](/bulletins/10247974.md), 2024-01-02, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. International Warranty Bulletin ID\-23\-03 2018 \- 2023 \(Current\) Jeep Wrangler \(JL\) and 2020 \- 2023 \(Current\) Jeep Gladiator \(JT\) \- Corrosion Warranty Claim Simplification \(Rev. A\)
- [89211](/bulletins/10247972.md), 2024-01-02, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Bulletin D\-23\-04 2018 \- 2023 \(Current\) Jeep Wrangler \(JL\) and 2020 \- 2023 \(Current\) Jeep Gladiator \(JT\) \- Corrosion Warranty Claim Simplification \(Rev. A\)
- [89079](/bulletins/10247970.md), 2024-01-02, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Bulletin D\-23\-04 2018 \- 2023 \(Current\) Jeep Wrangler \(JL\) and 2020 \- 2023 \(Current\) Jeep Gladiator \(JT\) \- Corrosion Warranty Claim Simplification
- [93120](/bulletins/10243209.md), 2023-10-02, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. FCA Caribbean Warranty Bulletin ID\-23\-20 "Can / Am" Warranty Coverage \- 594 / 595 / 596 WCC
- [93023](/bulletins/10243208.md), 2023-10-02, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Bulletin D\-16\-03 \- "Can / Am" Warranty Coverage \- 594 / 595 / 596 WCC \(Rev. B\)

JSON: [/v1/bulletins/10230141](/v1/bulletins/10230141)

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