2021 Porsche Cayenne Problems: 3 Known Issues
2021 model year · 2,400+ owner reports · Updated November 2026
According to Au7o's analysis of 2,400+ owner reports, the 2021 Porsche Cayenne has 3 documented known issues, with 2 rated critical. The most serious are Air Suspension Compressor and Strut Failure ($1,500-$4,500 repair) and Steering Column to Steering Gear Screw Connection Can Fail and Detach the Column (Recall 21V493) ($0-$0 repair). The most commonly reported issue is Air Suspension Compressor and Strut Failure with 2,400 owner reports. Across all issues with published estimates, repair costs range from $1,500 to $4,500. DIY maintenance guides at au7o.io.
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All 3 Known Issues
NHTSA Recalls8 recalls
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Porsche Cars North America, Inc. (Porsche) is recalling certain 2024-2026 Panamera, Cayenne, and 2025 Panamera E-Hybrid vehicles. The fasteners securing the high pressure fuel pump may not be tightened properly, resulting in a fuel leak.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Porsche Cars North America, Inc. (Porsche) is recalling certain 2019-2025 Cayenne, Cayenne E-Hybrid, 2020-2025 911, Taycan, 2024-2025 Panamera, and 2025 Panamera E-Hybrid vehicles. The rearview camera image may not display when the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
Porsche Cars North America, Inc. (Porsche) is recalling certain 2024 Cayenne, Cayenne S, Cayenne Coupe, Cayenne Turbo GT, and Cayenne S Coupe vehicles. After the vehicle is turned off, the rear hazard warning lights and the parking lights may not illuminate if they are activated within 10 seconds after the gateway control unit shuts off. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
SUSPENSION:FRONT:CONTROL ARM:UPPER ARM
Porsche Cars North America, Inc. (Porsche) is recalling certain 2024 Cayenne vehicles. The driver's side front axle upper left control arm installed on the vehicles may have been installed with cracks, which can result in front axle control arm breaking and an unexpected loss of steering and wheel control.
SUSPENSION:REAR
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2022 Cayenne vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-271 (AMA9) were performed.
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Frequently Asked Questions
What are the most common Porsche Cayenne problems?
According to Au7o's analysis of 2,400+ owner reports, the 2021 Porsche Cayenne has 3 documented issues. The most frequently reported are: Air Suspension Compressor and Strut Failure, Steering Column to Steering Gear Screw Connection Can Fail and Detach the Column (Recall 21V493), 12V Battery Discharged by ConBox Quiescent Current Draw (ATI 2229.6). Of these, 2 are rated critical and should be addressed promptly.
Is the Porsche Cayenne reliable?
The 2021 Porsche Cayenne has 3 known issues documented across 2,400+ owner reports. 2 issues are rated critical: Air Suspension Compressor and Strut Failure and Steering Column to Steering Gear Screw Connection Can Fail and Detach the Column (Recall 21V493). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Porsche Cayenne problems?
Repair costs for known Porsche Cayenne issues range from $0 to $4,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Air Suspension Compressor and Strut Failure, typically costs $1,500-$4,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2003-2025 Porsche Cayenne Air Suspension Compressor and Strut Failure?
Cayenne models equipped with PASM air suspension suffer from compressor burnout and air strut bladder leaks. The compressor overworks to compensate for leaking struts, eventually overheating and failing. Air strut bladders crack from age, UV, and road debris, causing the vehicle… Repairs typically run $1,500-$4,500. Severity: high.
What is the 2021 Porsche Cayenne Steering Column to Steering Gear Screw Connection Can Fail and Detach the Column (Recall 21V493)?
US recall 21V493 / Porsche AMB4 concerns 27 specified 2021 Cayenne vehicles built May 23–June 23, 2021. A production-process error may leave the steering-column-to-steering-gear screw connection outside specification. It can separate and cause deterioration or loss of steering co… Repairs typically run $0-$0. Severity: high.
What is the 2019-2021 Porsche Cayenne 12V Battery Discharged by ConBox Quiescent Current Draw (ATI 2229.6)?
Porsche ATI 2229.6 covers 2019–2021 Cayenne (9YA/9YB), including E-Hybrid models, where the customer reports that the 12V battery has insufficient voltage to start the vehicle and the workshop confirms an unexpectedly high quiescent current draw from the ConBox (connectivity unit… Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.