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U.S. public vehicle records

2021 Porsche 911 problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

5 owner complaints analyzed

6 distinct recall campaigns

623 mi median reported failure mileage

Scope: 2021 model year. Data snapshot: . 1 complaints include usable failure mileage.

This selection has limited data. It remains available for lookup but is excluded from search indexing.

Owner-reported patterns

Most common problems

Fuel/Propulsion System is the most frequently named component, appearing in 3 of 5 complaints (60.0%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Fuel system concerns240.0%
Transmission and shifting120.0%
Electrical and battery issues120.0%
Steering behavior120.0%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Fuel/Propulsion System
3
Equipment Adaptive/Mobility:Vehicle Controls:Steering
1
Seats
1
Component breakdown data
CategoryCount
Fuel/Propulsion System3
Equipment Adaptive/Mobility:Vehicle Controls:Steering1
Seats1

Fuel/Propulsion System: 3; Equipment Adaptive/Mobility:Vehicle Controls:Steering: 1; Seats: 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
1
25,000 to 49,999
0
50,000 to 74,999
0
75,000 to 99,999
0
100,000 to 149,999
0
150,000 and above
0
Reported problems by failure mileage data
CategoryCount
Under 25,0001
25,000 to 49,9990
50,000 to 74,9990
75,000 to 99,9990
100,000 to 149,9990
150,000 and above0

Under 25,000: 1; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (1). 4 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2021
2
2025
2
2026
1
Complaints over time data
CategoryCount
20212
20252
20261

2021: 2; 2025: 2; 2026: 1

Pattern summary

Fuel/Propulsion System leads the component reports. Fuel system concerns appears in 2 complaint narratives. Transmission and shifting appears in 1 complaint narratives. Electrical and battery issues appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11693498 · 2025-10-15 (October 15, 2025)

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 was 9 weeks, in 2025 - 3 weeks. In the first case service was covered under warranty, the second partially covered by extended warranty. Repair costs approximately $6,000 per occasion. Leaking fuel on a hot engine clearly created an unacceptable haz…

Owner-reported narrative. Look up ODI 11693498 at NHTSA ↗

Owner report 11721529 · 2026-03-02 (March 2, 2026)

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 on and vehicle will run rough - Client scan for codes and had codes P0202 & P0204. Cylinder 2 and 4 fuel injector electrical faults. After updating DME software, clearing faults and test driving, mil illuminated again. Quoted fuel injector replace…

Owner-reported narrative. Look up ODI 11721529 at NHTSA ↗

Owner report 11420618 · 2021-06-11 (June 11, 2021)

2021 Porsche 911. Consumer writes in regards to missing computer chip for proper steering.

Owner-reported narrative. Look up ODI 11420618 at NHTSA ↗