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2021 Ford Mustang: engine and transmission complaints

NO ELEVATED SIGNAL
29%
112 of 398 relevant owner complaints are about the engine, transmission or fuel system

No elevated drivetrain complaint concentration in the available NHTSA records for the 2021 Ford Mustang. Engine, transmission and fuel system account for 29% of relevant complaints.

Better than 72% of the 1,230 model years we track (2010–2023).

NHTSA data checked September 13, 2026
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Drivetrain complaints
112
engine, transmission, fuel
Total complaints
398
this model year
Fires reported
1
owner-reported
Recall campaigns
6
18 crashes · 11 injuries

Complaints by component

ELECTRICAL SYSTEM157 · 39%
FORWARD COLLISION AVOIDANCE105 · 26%
POWER TRAIN59 · 15%
UNKNOWN OR OTHER55 · 14%
FUEL/PROPULSION SYSTEM52 · 13%
VEHICLE SPEED CONTROL38 · 10%

The years either side

2010
31%
26 of 261
2011
74%
249 of 466
2012
67%
210 of 469
2013
61%
74 of 271
2014
42%
48 of 359
2015
30%
110 of 436
2016
33%
116 of 375
2017
22%
53 of 265
2018
56%
103 of 188
2019
55%
78 of 147
2020
42%
46 of 119
2021
29%
112 of 398
2022
29%
53 of 184
2023
too few complaints

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

What owners reported

ENGINE AND ENGINE COOLING,POWER TRAIN,ELECTRICAL05/18/2023CRASH1 INJURED
The contact owns a 2021 Ford Mustang GT500. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of power steering as the instrument cluster went blank and the charging system error warning message was illuminated. The contact also stated that while driving at an undisclosed spe…
FUEL/PROPULSION SYSTEM06/22/2026
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 pas…
POWER TRAIN,ENGINE03/06/2026
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.

Three of 112 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (6)

AIR BAGS:SIDE/WINDOW:CURTAIN
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 compress…
AIR BAGS:KNEE BOLSTER
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 dep…
ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM
Ford Motor Company (Ford) is recalling certain 2020-2023 Mustang vehicles. The brake fluid level sensor may not activate the visual warning indicator when the brake flui…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2021 Ford Mustang

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle. Combined across 3 body styles NHTSA files separately.