Porsche 911 and Taycan Brake Booster Rod Detachment

NHTSA campaign 21V697000 · Reported Sep 8, 2021 · Porsche Cars North America, Inc.

high How serious is it? About this label

A detached rod can cause the brake pedal to fail completely, increasing the risk of a crash. The notice does not tell owners to stop driving.

Key facts

NHTSA campaign number	21V697000
Reported to NHTSA	Sep 8, 2021
Manufacturer	Porsche Cars North America, Inc.
Part affected	Service Brakes, Hydraulic:foundation Components
Vehicles covered	4 model/year combinations, model years 2020–2021
Do-not-drive advisory	No
Park-outside advisory	No
Repair	Free at any franchised dealer

What's wrong, in plain English

Porsche is recalling certain 911 Carrera and Taycan vehicles because a rod connection in the brake booster may be loose. The rod could come loose and detach completely. If it detaches, the brake pedal can fail, and a failed brake pedal raises the risk of a crash.

What you should do

1. Check your VIN at nhtsa.gov/recalls.
2. Contact a Porsche dealer (1-800-767-7243) to schedule the repair.
3. The repair is free of charge.

Where do I find my VIN, and what do I tell the dealer?

Your VIN is the 17-character code on the lower left of the windshield, on your registration and usually on your insurance card. Enter it at nhtsa.gov/recalls to see whether this recall is still open on your car. When you call the dealer, say you have an open safety recall and give them NHTSA campaign number 21V697000. More in how recalls work.

Affected vehicles (4)

2020 Porsche 911 Carrera
2020 Porsche Taycan
2021 Porsche 911 Carrera
2021 Porsche Taycan

Who to contact

Porsche — official Porsche recall lookup

Customer service: 1-800-767-7243

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Porsche Brake Recalls Cover Leaking Hoses and Pedal Failure · all 4 Porsche recalls in this area

Other Porsche Taycan recalls

Dec 19, 2025Porsche Cayenne, Panamera and Taycan Rearview Camera Failuremedium
May 5, 2025Porsche Taycan front passenger airbag may switch offhigh
Oct 1, 2024Porsche Taycan Battery Short Circuit Fire Riskcritical
Oct 1, 2024Porsche Taycan High-Voltage Battery Short Circuit Riskcritical
Sep 5, 2024Porsche Taycan headlight software affects parking lightsmedium
Jun 19, 2024Porsche Taycan Front Brake Hoses May Leakhigh

All 25 Taycan recalls

Official notice

Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS
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.
Safety risk: 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.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.