# Service bulletin Y09

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: 10220930
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: Y09
- Manufacturer's date: 2021\-03\-09
- NHTSA component: SERVICE BRAKES; FORWARD COLLISION AVOIDANCE: DYNAMIC BRAKE SUPPORT/BRAKE ASSIST

## NHTSA's summary

Customer Satisfaction Notification Y09 Advanced Brake Assist

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10220930-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10220930-9999.pdf)

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

## Components

Brakes, Driver assistance

## Vehicles listed

- 2021 JEEP WRANGLER

## Recalls for the same vehicles and component

- [24V676000](/recalls/nhtsa/24V676000.md), 2024-09-12: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; EXTERIOR LIGHTING:BRAKE LIGHTS
- [22V638000](/recalls/nhtsa/22V638000.md), 2022-08-25: BACK OVER PREVENTION:DISPLAY FUNCTION

## Other bulletins for the same vehicles and component

- [108463](/bulletins/11025727.md), 2025-11-26, Service bulletin: SERVICE BRAKES. PAD KIT \- REAR DISC BRAKE, FRONT DISC BRAKE
- [108464](/bulletins/11025724.md), 2025-11-26, Service bulletin: SERVICE BRAKES. PAD KIT \- REAR DISC BRAKE, FRONT DISC BRAKE
- [S1805000006 REV.B](/bulletins/11025508.md), 2025-11-13, Service bulletin: SERVICE BRAKES. ESC Light Illuminated. DTC C1252\-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE
- [107418](/bulletins/11023612.md), 2025-10-02, Service bulletin: SERVICE BRAKES. SWITCH \- CLUTCH STARTER INTERLOCK \& MASTER CYLINDER ASSEMBLY \- CLUTCH
- [S2405000001 Rev B](/bulletins/11015797.md), 2025-03-19, Service bulletin: SERVICE BRAKES. Antilock Brake System \(ABS\) Module Will Not Initialize After Recent Service Replacement.
- [S2405000001 REV.A](/bulletins/11012875.md), 2025-01-16, Service bulletin: SERVICE BRAKES. Antilock Brake System \(ABS\) Module Will Not Initialize After Recent Service Replacement.
- [S248A000016](/bulletins/11011894.md), 2024-12-17, Service bulletin: BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING. Customer complaints regarding rear view camera inoperative or flickering blue radio screen display while transmission is in reverse or blank screens when selecting the rear camera view following a recent service repair involving the removal and installation of the rear spare tire carrier
- [S2405000001](/bulletins/11008326.md), 2024-10-03, Service bulletin: SERVICE BRAKES. Antilock Brake System \(ABS\) Module Will Not Initialize After Recent Service Replacement.
- [0300224](/bulletins/10251863.md), 2024-03-18, Service bulletin: EXTERIOR LIGHTING; BACK OVER PREVENTION. Front and Rear Axle Sensor Kit \*\*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: ? C1451\-11 \- Service Axle Locker System\*\* Customers may also comment on a Service Axle Locker message displayed in the Electronic Vehicle Information Center \(EVIC\) for this condition.
- [S2308000154](/bulletins/10248900.md), 2024-01-16, Service bulletin: ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. Rear Park Assist Warning Chime When Nothing is Behind the Vehicle

JSON: [/v1/bulletins/10220930](/v1/bulletins/10220930)

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