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Porsche Cayenne Recall 21V271: Rear Axle Lock Nut Can Break, Risking Loss of Control

NHTSA campaign 21V271, reported April 21, 2021, 1,568 vehicles potentially affected.

What this recall means for you

The lock nut on the trailing arm of the rear axle can break because of stress corrosion. If it fails, the rear axle may become misaligned, which can cause the driver to lose control of the vehicle and raises the risk of a crash.

Porsche will notify affected owners, and an authorized dealer will replace the lock nuts at no cost to you. Owners can also contact Porsche customer service at 1-800-767-7243 with questions about this recall. Check your vehicle identification number (VIN) for any open recalls to confirm whether your car is included and still needs the repair.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V271Porsche Cars North America, Inc.
Component
SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY
Problem
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Cayenne, Cayenne S, Cayenne Turbo, Cayenne GTS, Cayenne Coupe, Cayenne S Coupe, Cayenne Turbo Coupe, and Cayenne GTS Coupe vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.
Risk
A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
Remedy
Porsche will notify owners, and dealers will replace the lock nuts, free of charge. The recall began on June 18, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMA9.
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.safercar.gov.

Affected vehicles

Porsche Cayenne2021