Recall 21V341 affects 12 2021 Porsche Cayenne GTS vehicles for engine cylinder bore cracks. Engine replacement is free at any franchised Porsche dealer.
Porsche is recalling 12 2021 Cayenne GTS vehicles because cracks can develop on the engine cylinder bore surface. The defect can damage the engine, lead to a stall or oil leak, and increase the risk of a crash or fire; Porsche dealers will complete the recall repair free of charge.
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What's wrong?
The engine block in the 2021 Porsche Cayenne GTS is the main metal structure of the 4.0 litre V8 engine. Its cylinder bores are the smooth round passages where the pistons move up and down, turning fuel combustion into power. Those surfaces need to stay smooth and intact so the engine can hold oil pressure and run without internal damage.
In affected engines, cracks can form on the running surface of the cylinder 6 bore. Porsche traced the issue to a temporary supplier casting error, where an automated mold-extrusion stamp was misaligned during production of specific engine blocks. A cracked bore can damage the engine and create a fire risk under the conditions described in NHTSA campaign 21V341.
Before failure, owners can hear unusual noises from the engine crankshaft while driving. The instrument cluster can also show an oil pressure warning. Treat either sign as a serious engine warning, because the defect is inside the engine block itself.
Who's affected?
| 2021 Porsche Cayenne GTS | Engine |
|---|---|
| Units affected | 12 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2021 Porsche Cayenne GTS is on the list. Check your VIN to confirm whether your specific SUV is included.
What's the safety risk?
Cracks in the engine crankshaft can damage the engine, cause a stall, or lead to an oil leak, increasing the risk of a crash or fire. Listen for unusual crankshaft noise while driving and treat an oil pressure warning as a reason to stop safely and call the dealer. Repair is free at any franchised Porsche dealer.
What should I do?
- Check your VIN to confirm your 2021 Porsche Cayenne GTS is included in this recall.
- Contact a franchised Porsche dealer to schedule the free engine replacement.
- Tell the service desk the engine replacement addresses cylinder-bore cracks linked to engine damage, stalling, and oil leaks.
- Bring the recall notice if Porsche mailed one. If not, reference recall number 21V341 when you call.
- Call Porsche customer service at 1-800-767-7243 with questions and reference Porsche recall AMB1.
What happens at the repair
At the dealer, a Porsche technician replaces the engine covered by recall 21V341. The engine replacement and labor are free under the recall. The repair addresses cracking on the surface of the engine cylinder bore in affected Cayenne GTS vehicles. If you already paid out of pocket for a related engine repair before the recall notice, Porsche's general reimbursement plan is on file for documented expenses. Bring receipts or repair documentation to the service desk so the claim can be reviewed through that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| May 12, 2021 | NHTSA published the recall |
|---|---|
| July 9, 2021 | Owner notification mailed |
| July 10, 2021 | Dealer notification began |
| July 10, 2021 | Dealer notification ended |
| July 10, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V341?
Recall 21V341 covers 12 2021 Porsche Cayenne GTS vehicles with engine cylinder bore surface cracks. Those cracks can damage the engine, cause a stall, or lead to an oil leak, increasing crash or fire risk. Porsche dealers will replace the engine for free.
What should I do if my 2021 Porsche Cayenne GTS is on this recall?
Check your VIN to confirm your specific 2021 Porsche Cayenne GTS is included in recall 21V341. If it is, contact a franchised Porsche dealer to schedule the engine replacement. Reference recall number 21V341 and Porsche recall number AMB1 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the recall repair at no cost, and Porsche will replace the engine free of charge at a franchised Porsche dealer. The free repair applies regardless of where you bought the vehicle.
What is the safety risk?
The safety risk is engine damage, a stall, or an oil leak from cracks in the engine cylinder bore. A stall increases crash risk, and an oil leak increases fire risk. Confirm your VIN, then arrange the free engine replacement with a Porsche dealer.
When were owners notified about recall 21V341?
Porsche mailed owner notification letters on July 9, 2021. If you bought the vehicle used or never received a letter, the VIN still decides whether the recall applies. Porsche customer service is available at 1-800-767-7243.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V341000 |
|---|---|
| Porsche customer service | 1-800-767-7243 |
| NHTSA recall # | 21V341 |
| NHTSA recall # (full) | 21V341000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →