← 20222021 model year2020 β†’
⚑ NHTSA Official DataUpdated: Jun 2026How we calculate this
Severe Issues

2021 Ford Mustang: Is It Reliable?
Problems, Recalls & Buyer Verdict

Shopping for a used 2021 Ford Mustang? This page highlights owner-reported complaint patterns and recall history so you can inspect the right systems before buying. Current data includes 52 complaints, with Fuel System as the top reported area.

52
Complaints
4
Crashes
β€”
Fires
2
Injuries
β€”
Deaths
6
Recalls

2021 Ford Mustang Fuel Economy

βœ“ EPA Official Data

EPA-rated fuel economy across 8 2021 Ford Mustang trim configurations. The median figure is shown; range reflects all available trims.

20
MPG City
15–21 range
28
MPG Hwy
23–32 range
23
MPG Combined
18–25 range
387
g COβ‚‚/mile
Regular Gasoline
⚠️Costs $2,750 more than avg vehicle over 5 years

Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions. 8 trims analysed.

2021 Ford Mustang Safety Ratings

NHTSA 5-Star Program2 variants tested β€” showing 2021 Ford Mustang C RWD

Official crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.

Overall

Not Rated

8.1% rollover risk

Frontal Crash

Not Rated

Side Crash

Not Rated

Rollover

5/5

8.1% probability

βœ“Stability Control: Standardβ—‹Forward Collision Warning: Optionalβœ“Lane Departure Warning: Standard

Source: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.

Quick Answer

Based on NHTSA complaint data, the 2021 Ford Mustang has 52 owner complaints, 4 crash-related complaints, and 6 recall campaigns on record. The most frequently reported component is Fuel System. NHTSA reliability signal: Severe Issues.

2021 Ford Mustang β€” key reliability facts
Make
Ford
Model
Mustang
Model year
2021
NHTSA owner complaints
52
Crash-related complaints
4
Safety recall campaigns
6
Top reported component
Fuel System
Reliability signal
Severe Issues
EPA MPG combined
23
EPA MPG city / highway
20 / 28
Fuel type
Regular Gasoline
NHTSA rollover rating
5/5 stars
Electronic stability control
Standard

Most Common 2021 Ford Mustang Problems

Top owner-reported complaint areas and where they often appear.

#1
10
complaints

Fuel System

#2
10
complaints

Gasoline

#3
10
complaints

Engine Problems

Crash-related:1
Injuries:1

Complaint patterns center on Fuel System, Gasoline, Engine Problems. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.

Should You Buy a Used 2021 Ford Mustang?

The 2021 Ford Mustang shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase.

Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report.

What to Check Before Buying a Used 2021 Ford Mustang

Inspection Focus

  • Inspect fuel system components for leaks or performance issues.
  • Verify all open recalls at nhtsa.gov/recalls.
  • Request service records for engine and transmission repairs.
  • Have a mechanic inspect the vehicle before purchase.

Before You Close the Deal

  • Inspect fuel system components for leaks or performance issues.
  • Verify all open recalls at nhtsa.gov/recalls.
  • Request service records for engine and transmission repairs.
  • Have a mechanic inspect the vehicle before purchase.

Shortlist with model-year data. Decide with the exact VIN.

Before buying a used 2021 Ford Mustang, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.

What the Complaint Data Suggests

Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology

Complaints for the 2021 Ford Mustang are concentrated in the fuel system, engine, and transmission/drivetrain, with a moderate number of electrical and brake issues. The data is based on 52 complaints and 6 recalls, but confidence is low due to limited sample size.

Key Findings
  • Fuel system and engine problems each account for 10 complaints, the highest counts.
  • Transmission/drivetrain issues total 9 complaints, a notable concern.
  • Crash-related complaints are 4, indicating some safety incidents reported.
Top Concerns
  • Fuel System
  • Engine Problems
  • Transmission / Drivetrain
Data note: NHTSA complaints are consumer-submitted and do not confirm a manufacturing defect. Confidence level is Low due to small sample size (52 complaints for one model year). Complaints may not represent all owners' experiences.

All 2021 Ford Mustang Complaints by Category

Every owner-reported complaint category filed with NHTSA for the 2021 Ford Mustang. Use this as a pre-purchase inspection checklist.

ComponentComplaintsCrashesFiresAvg MileageVolume
Fuel System10β€”β€”β€”
Gasoline10β€”β€”β€”
Engine Problems101β€”β€”
Transmission / Drivetrain91β€”β€”
Electrical Faults61β€”β€”
Uncategorized Issues51β€”β€”
Brake System51β€”β€”
Fuel/Propulsion System4β€”β€”β€”
Back Over Prevention3β€”β€”β€”
Suspension Failures3β€”β€”β€”
Hydraulic31β€”β€”
Airbag Malfunctions2β€”β€”β€”
Visibility2β€”β€”β€”
Wheel Issues1β€”β€”β€”
Steering Defects11β€”β€”
Unintended Acceleration1β€”β€”β€”
Forward Collision Avoidance: AEB1β€”β€”β€”
Seat Belt Issues1β€”β€”β€”

Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.

Real Owner Complaints

Read what owners actually reported to NHTSA for the 2021 Ford Mustang. Type a keyword (e.g. β€œtransmission”, β€œstalling”, β€œbrakes”) to filter.

Showing 52 most recent complaints

Fuel SystemApr 7, 2026

The contact owns a 2021 Ford Mustang. The contact stated that while driving approximately 65 MPH, the vehicle shuddered while depressing the accelerator pedal. The contact stated that there was a banging sound coming from the vehicle. There was no warning light illuminated while …

Fuel SystemMar 25, 2026

The contact owns a 2021 Ford Mustang. The contact stated that while driving at various speeds, the vehicle started losing automotive power. The vehicle had stalled several times. The vehicle was able to restart, and the loss of automotive power was intermittent. The contact recei…

Transmission / DrivetrainMar 6, 2026

A steady Check Engine Light came on after starting the car; brought it to Ford Dealer of Montebello and they stated coolant leak and got into one of the cylinders that caused misfires.

Fuel SystemFeb 26, 2026

The contact owns a 2021 Ford Mustang. The contact stated that in May 2025, there was a misfire in the engine after refueling with warm fuel. The check engine warning light was flashing on the instrument cluster. The contact later received notification of NHTSA Campaign Number: 25…

Fuel/Propulsion SystemFeb 4, 2026

At highway speed (60-65mph), in 6th gear, cruise control activated, the car began to surge and stall and loose power. Applying more throttle to maintain speed did not help. Pulled to roadside and engine stalled. No check engine light at that time. Re-started with rough idle, chec…

Back Over PreventionJan 26, 2026

The contact owns a 2021 Ford Mustang. The contact stated that while reversing, the rear-view camera display glitched and switched between a black and a blue colored screen. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware o…

Fuel SystemJan 7, 2026

The contact owns a 2021 Ford Mustang. The contact stated that while driving at various speeds, the accelerator pedal was depressed, the vehicle hesitated and the engine misfired, and the vehicle failed to respond as needed. The contact stated that the check engine warning light w…

Fuel SystemDec 23, 2025

The contact owns a 2021 Ford Mustang. The contact received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline). The contact stated that while the vehicle was stopped and the accelerator pedal was depressed on several occasions, the vehicle hesitated to accele…

Fuel SystemDec 15, 2025

The contact owns a 2021 Ford Mustang. The contact received notification of NHTSA Campaign Number: 25V455000 (FUEL SYSTEM, GASOLINE); however, the part to do the recall repair was not yet available. The contact stated that while driving in stop-and-go traffic, the vehicle hesitate…

Fuel SystemDec 10, 2025

The contact owns a 2021 Ford Mustang. The contact received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline); however, parts were not yet available for the recall repair. The contact stated that parts had not yet been available for six months. The contact w…

Electrical FaultsNov 11, 2025

I RECENTLY PURCHASED THIS CAR. THE REAR BACK-UP CAMERA WAS IN A FLIP FLOPPED STATE. MEANING, WHAT WAS DISPLAYED ON THE CABIN SCREEN ON THE LEFT, WAS ACTUALLY ON THE RIGHT PLUS THE GUIDING LINES ON THE SCREEN WERE MISSING. I PURCHASED AND INSTALLED A NEW CAMERA FROM FORD. THIS FI…

Fuel SystemOct 22, 2025

The contact owns a 2021 Ford Mustang. The contact stated that while depressing the accelerator pedal, the vehicle hesitated and then vibrated. The contact stated that the failure only occurred while attempting to accelerate. There was no warning light illuminated. The contact rec…

Electrical FaultsSep 24, 2025

Rear camara is inconsistent but lately works 25% of the time.

Engine ProblemsAug 25, 2025

While entering an on-ramp and just before merging onto the freeway the vehicle failed to accelerate and I lost complete power from the engine. The vehicle was still powered on, but produced no combustion from the engine. The check engine light illuminated and a message appeared o…

Fuel SystemJul 28, 2025

The contact owns 2021 Ford Mustang. The contact stated that while her husband was attempting to make a right turn, the vehicle stalled. The vehicle was turned off however, while attempting to restart the vehicle the vehicle failed to respond as needed. No warning light was illumi…

Fuel SystemJul 22, 2025

The contact owns a 2021 Ford Mustang. The contact received notification of NHTSA Campaign Number:25V455000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time f…

Transmission / DrivetrainJul 11, 2025

Vehicle stalled while pulling into traffic from apartment driveway.

Back Over PreventionJul 11, 2025

The contact owns a 2021 Ford Mustang. The contact stated that while reversing, the rearview camera image was distorted and black intermittently. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that rearview camera needed to be r…

Engine ProblemsJul 11, 2025

My 2021 Ford Mustang EcoBoost is currently experiencing an ongoing issue with the EVAP purge valve, a critical emissions component. The vehicle suffers from stuttering, rough idle, and a check engine light, especially immediately after refueling, where the engine has stalled mult…

Uncategorized IssuesMay 24, 2025

Reverse camera stopped working.

Page 1 of 3

Source: NHTSA Complaints Database. Real owner reports for the 2021 Ford Mustang.

2021 Ford Mustang Recalls

6 campaigns

NHTSA recall campaigns for the 2021 Ford Mustang. 6 recall campaigns are on record for this model year. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.

21V98000016/12/2021
AIR BAGS:SIDE/WINDOW:CURTAIN

22V08300016/02/2022
AIR BAGS:KNEE BOLSTER

23V72700027/10/2023
ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM

25V44200027/06/2025
BACK OVER PREVENTION:SOFTWARE

25V455000Jul 7, 2025
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

25V689000Oct 10, 2025
ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM

Compare Ford Mustang Model Years

Compare complaint and recall volume across years to see whether 2021 lands in a lower-risk or higher-risk part of the model timeline.

202620252024202320222021202020192018201720162015201420132012201120102009200820072006200520042003200220012000

2021 Ford Mustang Buying FAQ

Buyer-focused answers based on real NHTSA complaint and recall data for this model year.

Is the 2021 Ford Mustang reliable?β–Ύ

Severe Issues. NHTSA currently shows 52 owner complaints, 4 crash-related complaints, and 6 recall campaigns for this model year. The 2021 Ford Mustang shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.

What are the most common problems with the 2021 Ford Mustang?β–Ύ

#1: Fuel System (10 complaints). #2: Gasoline (10 complaints). #3: Engine Problems (10 complaints)

At what mileage do problems start on the 2021 Ford Mustang?β–Ύ

Mileage data is not available or insufficient for this model year.

How safe is the 2021 Ford Mustang?β–Ύ

Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2021 Ford Mustang, NHTSA complaints include 4 crash-related reports and 0 fire reports out of 52 total complaints. 2 injury reports are also on file. For controlled crash-test ratings, check nhtsa.gov/ratings.

Does the 2021 Ford Mustang have any recalls?β–Ύ

Yes. 6 NHTSA recall campaigns affect the 2021 Ford Mustang. A major recall area is AIR BAGS:SIDE/WINDOW:CURTAIN. 6 recall campaigns are on record for this model year. Always verify open recalls by VIN because completion status varies by vehicle.

Should I buy a 2021 Ford Mustang?β–Ύ

The 2021 Ford Mustang shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report. Pay extra attention to Fuel System during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.

Wider context: See the full Ford Mustang reliability report with year-by-year comparison.

Owner Reliability Rating

Rate the 2021 Ford Mustang based on your ownership experience.

Add your rating:

Ratings are based on owner experience and are separate from NHTSA data shown above.

Check the Exact Vehicle History Before You Buy

Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.