2021 Ford F-150 Recall: Electronic brake booster may leak brake fluid into the electronic control…
NHTSA campaign 21V533000 · Service Brakes, Hydraulic · filed Jul 15, 2021 · verified Jul 30, 2026
The defect
Ford Motor Company (Ford) is recalling certain 2021 F-150 vehicles. The electronic brake booster may leak brake fluid into the electronic control unit, which could result in reduced braking performance.
The risk
Reduced braking performance can increase the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Dealers will replace the electronic brake booster assembly, free of charge. Owner notification letters were mailed on July 28, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 21S33.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Affected vehicles
Related recalls
More Ford F-150 recalls
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- 2017 Ford F-150 — Instrument cluster may lose power after initial vehicle…
- 2018–2020 Ford F-150 — When the headlight switch is turned from "Autolamps" to…
- 2018 Ford F-150 — Quickly moving the shift lever from Park to Drive may cause…
- 2014 Ford F-150 — A loss of signal between the transmission output shaft…
Other campaigns involving Ford vehicles
Source: NHTSA recall database, campaign 21V533000 (manufacturer number 21S33). Data last verified Jul 30, 2026.