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Vehicle recall 21V697000 · September 8, 2021

Porsche 911 Carrera and Taycan

The pressure input rod connection on the brake booster may be loose and could detach.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 911 Carrera and Taycan vehicles. The pressure input rod connection on the brake booster may be loose and could detach.
Consequence
A detached pressure input rod will cause the brake pedal to fail, increasing the risk of a crash.
Remedy
Dealers will repair or replace the brake booster as necessary, free of charge. Owner notification letters were mailed October 28, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB9.
Notes
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.

Recall details

NHTSA campaign
21V697000
Reported to NHTSA
September 8, 2021
Filed by
Porsche Cars North America, Inc.
Manufacturer campaign
AMB9
Owner notification
October 28, 2021
Vehicles potentially affected
11
Initiated by
the manufacturer
Components
Service brakes, hydraulic › Critical fasteners; Service brakes, hydraulic › Foundation components
Recall 21V697000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your Porsche been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Porsche dealer can also check your VIN. Recall repairs are free.