The 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.
The risk
A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
The fix
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.
Recall details
| NHTSA campaign | 21V-271 (21V271000) |
|---|---|
| Manufacturer number | AMA9 |
| Manufacturer | Porsche Cars North America, Inc. |
| Component | Suspension › Rear › Axle › Non-powered axle assembly |
| Report date | April 21, 2021 |
| Owners notified | June 18, 2021 |
| Vehicles affected | 1,568 |
| Initiated by | Manufacturer |
Vehicles covered
Frequently asked questions
Is the recall 21V-271 repair free?
Yes. Porsche dealers will fix the problem at no cost: 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.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 1,568 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.