NHTSA campaign 21V341000 · Porsche campaign AMB1
Porsche Recall 21V-341: Engine Cylinder Bore Surface May Develop Cracks
NHTSA recall 21V341000 (Porsche campaign AMB1) was reported by Porsche Cars North America, Inc. on May 12, 2021, with 12 vehicles potentially affected (per NHTSA). NHTSA's record lists the Porsche Cayenne GTS for the 2021 model year. Owners were notified on July 9, 2021, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 21V341000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Porsche VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 21V341000 (also written 21V-341 or 21V341)
- Filed by
- Porsche Cars North America, Inc.
- Porsche campaign number
- AMB1
- Report received
- Potentially affected
- 12 vehicles (per NHTSA)
- Component
- Engine
- Owners notified
Repair completion: 100% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 21V341000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Porsche
Porsche Cayenne GTS
NHTSA's recall notice
As NHTSA's recall record states it for campaign 21V341000.
Defect description
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Cayenne Turbo, Cayenne GTS, and Cayenne GTS Coupe vehicles. Cracks may develop on the surface of the engine cylinder bore.
Safety consequence
Cracks may cause engine damage and a stall or an oil leak, increasing the risk of a crash or fire.
Manufacturer remedy
Dealers will replace the engine, free of charge. Owner notification letters were mailed July 9, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB1.
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.
Sources
Official NHTSA notice for recall 21V341000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.