2021 Ford Mustang
The Verdict
The 2021 Ford Mustang has 55 owner complaints filed with NHTSA. The most reported issues are engine (22 complaints) and body (16 complaints). With a Klunk Score of 86/100, it earns a "Smooth Ride" rating. If you're shopping for a Ford Mustang, consider the 2025 model year which has 78% fewer complaints.
Safe Bet
The 2025 has 78% fewer complaints
View the 2025 Ford Mustang dashboard →
Klunk Score: Smooth Ride
This vehicle year has significantly fewer complaints than average. A reliable choice.
How is this calculated?
The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.
Recalls 3
Active safety recalls from NHTSA for this vehicle year.
Ford Motor Company (Ford) is recalling certain 2021-2022 Mustang vehicles. An insufficient weld on the front passenger knee air bag may result in an improper air bag deployment.
Risk
An improper air bag deployment can increase the risk of injury during a crash.
Remedy
Dealers will replace the front passenger knee air bag, free of charge. Owner notification letters were mailed on March 8, 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's...
Reported Apr 10, 2026
Ford Motor Company (Ford) is recalling certain 2021 Mustang vehicles. The side curtain air bag inflators may have been manufactured with the incorrect amount of compressed gas, which can result in...
Risk
An air bag that does not inflate properly can increase the risk of injury in a crash.
Remedy
Dealers will replace the side curtain air bags, free of charge. An interim owner notification letter was mailed on February 3, 2022. Owner notification letters were mailed on April 22, 2022. Own...
Reported Apr 10, 2026
Ford Motor Company (Ford) is recalling certain 2021-2023 Mustang vehicles repaired incorrectly under recall number 23V727. The brake fluid level sensor may not activate the visual warning indicator...
Risk
Without a low brake fluid warning light, the vehicle may be driven with low brake fluid, reducing braking performance and increasing the risk of a crash.
Remedy
Dealers will update the body control module software, free of charge. Owner notification letters were mailed December 11, 2025. Owners may contact Ford customer service at 1-866-436-7332. Ford's nu...
Reported Oct 10, 2025
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Under the Hood
Each number is a complaint. Darker = bigger problem.
| Year | Body | Brakes | Electrical | Engine | Transmission |
|---|---|---|---|---|---|
| 2000 | 169 | 63 | 92 | 102 | 43 |
| 2001 | 93 | 27 | 60 | 82 | 18 |
| 2002 | 77 | 13 | 38 | 61 | 22 |
| 2003 | 106 | 11 | 36 | 78 | 37 |
| 2004 | 78 | 11 | 16 | 18 | 7 |
| 2005 | 118 | 45 | 516 | 162 | 24 |
| 2006 | 105 | 25 | 318 | 91 | 28 |
| 2007 | 142 | 19 | 369 | 49 | 30 |
| 2008 | 48 | 11 | 242 | 11 | 29 |
| 2009 | 27 | 4 | 137 | 6 | 6 |
| 2010 | 42 | 8 | 182 | 16 | 11 |
| 2011 | 70 | 14 | 132 | 68 | 182 |
| 2012 | 83 | 7 | 160 | 51 | 162 |
| 2013 | 36 | 5 | 153 | 32 | 43 |
| 2014 | 50 | 12 | 236 | 24 | 24 |
| 2015 | 175 | 44 | 103 | 78 | 34 |
| 2016 | 162 | 15 | 76 | 92 | 22 |
| 2017 | 160 | 6 | 38 | 38 | 17 |
| 2018 | 54 | 4 | 26 | 65 | 35 |
| 2019 | 36 | 4 | 27 | 55 | 19 |
| 2020 | 32 | 15 | 24 | 27 | 16 |
| 2021 | 16 | 5 | 5 | 22 | 7 |
| 2022 | 23 | 2 | 6 | 16 | 1 |
| 2024 | 17 | 6 | 35 | 9 | 3 |
| 2025 | 7 | 0 | 4 | 0 | 1 |
By Category
By Severity
Worst Problems
Complaints
My vehicle, VIN [XXX], is subject to NHTSA Recall 25V455 (Ford Recall 25S75) involving a defective low-pressure fuel pump that may cause engine hesitation, loss of power, or engine stalling. This recall was announced in July 2025 and remains open on the NHTSA VIN lookup as of June 2026. More than eleven months have passed since the recall was announced, and Ford has not provided a repair remedy for my vehicle. I believe this is an unreasonable delay for a safety-related defect. In addition, the recall previously appeared in the FordPass application associated with my vehicle but no longer appears there, even though both the NHTSA and Ford recall website VIN lookup continues to show the recall as open. This discrepancy creates confusion regarding the status of the recall and whether Ford is actively notifying affected owners. I am concerned that my vehicle remains subject to a known safety defect without an available repair and request that NHTSA review Ford’s handling of Recall 25V455, the prolonged delay in providing a remedy, and the inconsistency between Ford’s customer-facing systems and the NHTSA recall database. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Driver door opened to secondary latch position while driving on the highway at 70mph on 5/16/2026. The warning system came on and driver had to navigate holding the door and stopping safely during high speed traffic to close the door. Will take to dealership when next available opening day. No accident or police were involved. Driver found older warning affecting same year,make,model for recall but unsure if problem was corrected before purchase or if this vin# was included in recall campaign. Campaign 21N10.
The backup camera goes blank and says to contact Ford
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 pulling over to the shoulder of the roadway. The contact restarted the vehicle and drove slowly to the destination. The contact then received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The local dealer was made aware of the failure and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The vehicle was not repaired. The failure mileage was approximately 2,700.
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 received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline); however, the part was not yet available. The contact called a local dealer and the manufacturer several times and was informed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The failure mileage was approximately 48,000.
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.
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: 25V455000 (Fuel System, Gasoline); and associated the misfire with the recall. The local dealer was contacted, and the contact was informed that the recall repair was not yet available. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not informed of the failure. The failure mileage was approximately 13,000.
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, check engine light illuminated, attempted to drive again but there was no power, vehicle stalled again. Tried to crank again with crank-no start, check engine light on. Car had approx. 1/4 tank fuel and range of 80 miles to empty. Had to tow. After towing home about 2 hours post-incident, car is still crank-no start. Scanned for codes: P0087:00- 64, P008A:00-EC, P00C6:00-26, P008A:00 fuel pressure low codes.
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 of the failure; however, the contact was informed that a diagnostic test was needed. The contact referenced an unknown recall with a similar failure description; however, the VIN was not associated with the VIN. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,500.
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 was illuminated. The contact called a local dealer and was advised that there was a recall associated with the VIN under NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline). The contact was advised by the dealer that the remedy was not yet available. The contact stated that the failure was a recurring failure. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not informed of the failure. The failure mileage was 44,878.
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 accelerate as intended. The contact stated that there were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The failure mileage was approximately 5.
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 hesitated. The contact pulled into a gas station where the vehicle experienced vapor lock. The vehicle failed to restart, with an abnormal cranking sound coming from the vehicle. After several attempts, the contact was able to restart the vehicle. No warning lights were illuminated. The contact stated that on a separate occasion, the failure persisted. The contact called the dealer and was informed that the failure might be caused by the purge valve. The vehicle was not repaired. The contact stated that the failures occurred when the vehicle had a half tank to a full tank of fuel. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was approximately 5,000.
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 was concerned that the vehicle could lose motive power while driving at 65 MPH. The contact stated that if the failure occurred while driving, he could be killed. The contact was informed by two dealers that the parts were not yet available, and there was no available date for the parts' availability. The manufacturer was not contacted. The contact had not experienced a failure.
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 FIXED THE FLIP FLOPPED IMMAGE , BUT, NOT THE MISSING LINES ON THE SCREEN. SECURING THE WIRES I NOTICED THE WIRING HARNESS AT THE BEND AT THE DECK AND LID WAS FULLY EXPOSED TO BEING FRAYED BY THE METAL DECK LID. I DID NOT SEE ANY COPPER WIRE SHOWING. BUT, I WONDER HOW LONG IT WILL TAKE TO FRAY TO RAW WIRE? I ALSO OWN A 2015 MUSTANG GT THAT WAS RECALLED FOR THE EXACT SAME CONDITION. THAT WIRING HARNESS WAS REPLACED BY MY LOCAL FORD DEALERSHIP IN 2024.
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 received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline). However, when the dealer was contacted, the contact was informed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not informed of the failure. The failure mileage was approximately 44,000.
Rear camara is inconsistent but lately works 25% of the time.
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 on the dash stating to shift the vehicle into neutral. I pulled off on the shoulder and shifted the vehicle into park. I shut the vehicle off and started it back up. After doing so I had full power once again. This is the sixth time this has happened.
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 illuminated. A dealer was contacted. The vehicle was towed to a dealer where it was diagnosed and determined that the fuel pump and battery needed to be replaced. The vehicle was repaired. The contact related the failure to NHTSA Campaign Number: 25V455000 (FUEL SYSTEM, GASOLINE); however, the VIN was not included in the recall. The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recall. The failure mileage was 4,855.
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 for the recall repair. The contact stated that after storing the vehicle in storage for the winter and connecting a battery retainer, the check engine warning light temporarily illuminated for one day. The dealer was contacted and was unsure when parts would be available. The contact called another dealer, Evansville Ford (428 N Union Rd, Evansville, WI 53536); who was unable to confirm when parts would be available. The manufacturer was not made aware of the failure. The failure mileage was approximately 21,000. VIN tool confirms parts not available.
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 multiple times—posing a serious safety risk during traffic re-entry and acceleration.The purge valve has not been replaced, and the issue remains unresolved. I contacted Ford Customer Relations and three separate Ford dealerships, all of which refused to service the vehicle under warranty, despite the fact that it is still covered under the federal emissions warranty (8 years/80,000 miles) and the powertrain warranty.This refusal contradicts federal warranty guidelines, as the purge valve is clearly part of the evaporative emissions control system. The failure disrupts vapor flow and fuel trim stability, leading to erratic engine behavior and emissions system malfunction.I previously owned another Ford Mustang EcoBoost while living in a different part of the state, and that vehicle experienced the exact same purge valve issue, including stalling after refueling and triggering the check engine light. This recurring failure across multiple vehicles suggests a design flaw or supplier defect that Ford has failed to address.There are hundreds of documented complaints and videos online, including on YouTube and Mustang forums, showing other owners experiencing the same purge valve failure and warranty denial. This suggests a systemic issue that Ford is aware of but continues to ignore.I believe this issue warrants investigation for warranty non-compliance, emissions system reliability, and potential recall consideration due to the safety and environmental risks involved.
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