# Service bulletin SSM 51590

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: 10236024
- Published by NHTSA: 2023\-05\-16
- Manufacturer's number: SSM 51590
- Manufacturer's date: 2023\-05\-02
- NHTSA component: PARKING BRAKE

## NHTSA's summary

Some 2021\-2022 F\-150 vehicles equipped with light duty electric park brake calipers \(minor feature code FAJAK\) may exhibit a squeal noise from the rear brakes after sitting for 8 hours or more. To confirm a vehicle is built with minor feature code FAJAK, review the build information by double\-clicking the vehicle identification number in the upper left\-hand corner in the Professional Technician System \(PTS\). To correct this condition, replace rear brake disc \(ML1Z\-2C026\-C\) and rear brake pads, caliper pin bolts, and brake pad holding clips \(ML3Z\-2200\-E\) on both sides of the vehicle. Refer to Workshop Manual Section 206\-04 Rear Disc Brake. For claiming, use causal part number 2552 and applicable labor times from Section 02 of the Service Labor Times Standard Manual. NOTE: Using incorrect service parts on the braking system could impair brake performance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236024-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236024-9999.pdf)

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

## Components

Brakes, Parking brake

## Vehicles listed

- 2021 to 2022 FORD F\-150

## Recalls for the same vehicles and component

- [23V509000](/recalls/nhtsa/23V509000.md), 2023-07-21: PARKING BRAKE:ELECTRICAL

## Other bulletins for the same vehicles and component

- [SSM 51471](/bulletins/10233746.md), 2023-04-05, Service bulletin: PARKING BRAKE; SERVICE BRAKES. Some 2021\-2022 F\-150 vehicles equipped with light duty electric park brake calipers \(minor feature code FAJAK\) may exhibit a squeal noise from the rear brakes after sitting for 8 hours or more. To confirm a vehicle is built with minor feature code FAJAK, review the build information by double\-clicking the vehicle identification number in the upper left\-hand corner in the Professional Technician System \(PTS\). To correct this condition, replace rear brake disc \(ML1Z\-2C026\-C\) and rear brake pads, caliper pin bolts, brake pad clips, and retraction springs \(ML3Z\-2200\-E\) on both sides of the vehicle. Refer to Workshop Manual Section 206\-04 Rear Disc Brake. For claiming, use causal part number 2552 and applicable labor times from Section 02 of the Service Labor Times Standard Manual. NOTE: Using incorrect service parts on the braking system could impair brake performance.
- [SSM 51402](/bulletins/10233651.md), 2023-04-04, Service bulletin: PARKING BRAKE. Some 2021\-2022 F\-150 vehicles equipped with light duty electric park brake calipers \(minor feature code FAJAK\) may exhibit a squeal noise from the rear brakes after sitting for 8 hours or more. To confirm a vehicle is built with minor feature code FAJAK, review the build information by double\-clicking the vehicle identification number in the upper left\-hand corner in the Professional Technician System \(PTS\). To correct this condition, replace rear brake disc \(ML14\-2A315\-BC\) and rear brake pads, caliper pin bolts, brake pad clips, and retraction springs \(ML3Z\-2200\-E\) on both sides of the vehicle. Refer to Workshop Manual Section 206\-04 Rear Disc Brake. For claiming, use causal part number 2552 and applicable labor times from Section 02 of the Service Labor Times Standard Manual. NOTE: Using incorrect service parts on the braking system could impair brake performance.
- [SSM 50327](/bulletins/10205473.md), 2021-12-26, Service bulletin: PARKING BRAKE. Some 2021 F\-150 Tremor vehicles built on or before 26\-Aug\-2021 may exhibit a condition where the active park assist system is inoperative with an Active Park Fault message displayed in the instrumental panel cluster \(IPC\) and/or in the SYNC display. This may be due to the software in the anti\-lock brake system \(ABS\). To correct this condition, reprogram the ABS module using the latest software level of the Ford Diagnosis and Repair System \(FDRS\). For claiming use causal part 2C219 and the applicable labor operations of Section 02 of the Service Labor Time Standards \(SLTS\) Manual.

JSON: [/v1/bulletins/10236024](/v1/bulletins/10236024)

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