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Service bulletin 511767

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11000464
Published by NHTSA2024-05-28
Manufacturer's number511767
Manufacturer's date2024-05-22
Campaign id or software version511767
NHTSA componentSERVICE BRAKES

NHTSA's summary

According to Ford Motor Company, on your vehicle, it may be possible for the parking brake to disengage without pressing the release button. If the parking brake is unintentionally disengaged, it could result in the vehicle rolling away, increasing the risk of crash or injury. Ford Recall Campaign 24V143

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes

Vehicles listed
FOREST RIVER ROCKPORT2022, 2023, 2024

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
5119642025-09-26. Service bulletin. According to General Motors/Chevrolet recall N242842680: "The brake pressure sensor assembly may allow brake fluid to leak beyond the diaphragm seal into the brake pressure switch. As a safety precaution, General Motors recommends that you park your vehicle outside until the remedy can be performed. The brake fluid may seep into the sensor assembly electrical components and short the brake pressure switch and associated fuse. If brake fluid shorts the brake pressure switch and the associated fuse, the circuit can generate excessive heat that could result in a fire, increasing the risk of injury. An under hood fire may occur when the vehicle is off and possibly unattended."
5118912025-03-03. Service bulletin. According to FCA Recall 24V896: "The brake hydraulic control unit could fail. Over time, this could cause the antilock braking system (ABS), electronic stability control (ESC) system and/or traction control not to work. An antilock braking system, electronic stability control system and/or traction control system that doesn't work could increase the risk of a crash."
5117672024-05-28. Service bulletin. According to Ford Motor Company, on your vehicle, it may be possible for the parking brake to disengage without pressing the release button. If the parking brake is unintentionally disengaged, it could result in the vehicle rolling away, increasing the risk of crash or injury. This is according to Ford Recall Campaign 24V143.
511702FRI-INT2023-12-01. Service bulletin. According to Ford Recall 23V625: "In your vehicleâ™s transmission, a casting defect in the transmission upper valve body casting may cause the main control poppet valve to get stuck in the open position. A stuck poppet valve restricts the flow of lubricant to the rear extension housing bushing, resulting in excessive heat generation in the bushing and erosion of the rear seal. This condition leads to transmission fluid leakage, noise, and vibration. The increased vibration may result in a loss of torque retention on the abutment plate bolts. Once the abutment plate bolt torque is compromised, the park actuator may be unable to engage the park pawl into the park gear, which may result in unintended vehicle movement if the parking brake is not applied, increasing the risk of a crash."
511638F2023-08-02. Service bulletin. According to GM Safety Recall N222375270/23V266: "These vehicles may have a brake pressure sensor assembly that allows brake fluid to leak beyond the diaphragm seal into the pressure switch. The brake fluid may seep into the sensor's electrical components and short the brake pressure switch and the associated fuse. If brake fluid shorts the brake pressure switch and the associated fuse, the circuit can generate excessive heat that could result in a fire, increasing the risk of injury. An under-hood fire may occur when the vehicle is off and possibly unattended."
5116382023-07-05. Service bulletin. According to GM Safety Recall N222375270 (NHTSA Recall Number TBD): "These vehicles may have a brake pressure sensor assembly that allows brake fluid to leak beyond the diaphragm seal into the pressure switch. The brake fluid may seep into the sensor's electrical components and short the brake pressure switch and the associated fuse. If brake fluid shorts the brake pressure switch and the associated fuse, the circuit can generate excessive heat that could result in a fire, increasing the risk of injury. An under-hood fire may occur when the vehicle is off and possibly unattended."