
2021 Porsche 911
Problems, Recalls & Reliability Report
Quick Summary
The 2021 Porsche 911 has 5 owner complaints filed with NHTSA — that's 0.7x the segment average of 7. The most common issue is fuel system problems (60% of all complaints), specifically: two separate instances of fuel line failure and fuel leak in the engine compartment. the first in march 2024 and the second in september 2025. the situations both resulted in fuel leaking on top of the hot engine components. repair requires removal of the engine and transmission. in 2024 repair time. There are 6 recalls issued for this model year. ⚠️ 1 fire report filed.
5
Total Complaints
6
Recalls Issued
—/5
Safety Stars
0.7x
vs Segment Avg
Known Problems(top 3 of 3)
FUEL SYSTEM
3 complaints- • Two separate instances of fuel line failure and fuel leak in the engine compartment. The first in March 2024 and the second in September 2025. The situations both resulted in fuel leaking on top of the hot engine components. Repair requires removal of the engine and transmission. In 2024 repair time
- • I started my car and about one minute later I heard an explosion from the rear of the vehicle and saw it engulfed in flames.
- • The fuel injection problem on cylinder 2 and 4 had injector electrical faults for the last two years resulting in reduced power warning. I finally took my car to the dealer for an analysis. After their analysis here is their statement on the service invoice: "Client state check engine light comes
“Two separate instances of fuel line failure and fuel leak in the engine compartment. The first in March 2024 and the second in September 2025. The situations both resulted in fuel leaking on top of the hot engine components. Repair requires removal of the engine and transmission. In 2024 repair time”
— NHTSA complaint filing
Recalls (6)
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Porsche Taycan Turbo, Taycan Turbo S, Taycan, Taycan 4S, 911 Turbo S Coupe, Cayman, Cayman T, Cayman S, Cayman GT4, 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4S Coupe, 911 Carrera 4S Targa, 911 Carrera Cabriolet, 911 Carrera S Cabriolet, 911 Carrera 4S Targa Heritage Design Edition, 911 Carrera 4S Cabriolet, 911 Turbo Coupe, 911 Turbo Cabriolet, 911 Turbo S Cabriolet, 718 Spyder, and Boxster vehicles. Certain suspension components may not have been tightened correctly and can loosen.
Risk: Loose suspension components may detach, causing a sudden loss of vehicle stability and control, and increasing the risk of a crash.
Fix: Dealers will replace the affected suspension nuts and bolts. Dealers will also inspect surrounding components for damage, and replace any damaged parts as necessary. Repairs will be performed free of charge. Owner notification letters were mailed May 7, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMA3.
Fuel Cost Calculator for 2021 Porsche 911
Live EIA pricesBased on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.
5-Year Gas Price History
EIA weekly retail data · 2021 → todaySource: US Energy Information Administration weekly retail gasoline prices.
Estimated Insurance Cost for 2021 Porsche 911
How this estimate is calculated
Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.
Maintenance & Warranty
Porsche New-Vehicle Warranty Coverage
These are the terms for a new Porsche. If you're buying a used 2021 911, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Porsche dealer for VIN-specific remaining warranty.
Estimated Repair Costs
Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.
🔍 Pre-Purchase Inspection Checklist
Based on 5 owner complaints for this specific year, here's what to check or ask about:
- ☐FUEL SYSTEM: Two separate instances of fuel line failure and fuel leak in the engine compartment. The first in March 2024 and the second in September 2025. The situations both resulted in fuel leaking on top of the hot engine components. Repair requires removal of the engine and transmission. In 2024 repair time
Typically appears around 50K miles. Repair cost ~$500
- ☐SEATS/RESTRAINTS: THE SEAT BACK RELEASE ON BOTH SEATS IS VERY HARD TO PULL. ON THE DRIVERS SIDE THE STRAP BROKE FREE WHILE ATTEMPTING TO EXIT AND THE SEAT WOULD NOT RELEASE. THIS COULD BE A SAFETY DANGER IN A CRASH WHEN REAR SEAT OCCUPANTS WOULD NOT BE ABLE TO EXIT
Typically appears around 50K miles. Repair cost ~$500
- ☐OTHER: 2021 Porsche 911. Consumer writes in regards to missing computer chip for proper steering.
Typically appears around 50K miles. Repair cost ~$500
- ☐RECALLS: Verify all 6 recalls have been completed — free at any Porsche dealer
- ☐General: Get a pre-purchase inspection from an independent mechanic ($100-$200)
Porsche 911 — Year Comparison
How does 2021 compare to other years? Fewer complaints = more reliable.
NHTSA Safety Rating
No NHTSA safety rating available
At a Glance
- Complaints
- 5
- Recalls
- 6
- Fire reports
- 1
- Crash reports
- 0
- Injury reports
- 0
- Segment avg
- 7
Check a Specific VIN
See recalls for YOUR 2021 Porsche 911