Buyer Research

2021 Ford Mustang Mach-E — Should You Buy One?

Typical asking price: $22,000–$32,000. There is 1 high-severity known issue you need to know before handing over a check.

Kestrel Take

A genuinely good electric crossover that depreciated brutally, which is your gain. First-year build, so verify the recalls — particularly the high-voltage battery contactor recall that could leave the car unable to move.

What we checked

Partly reconciled against public records, 2026-09-11

NHTSA holds 343 owner complaints for the 2021 Ford Mustang Mach-E, and no recall campaigns.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. 44% of them are about one thing — electrics and electronics. That much concentration is a genuine pattern rather than background noise, and it is the first thing to check on any example you look at.

Not written up yet: the driver-assist and automatic braking systems (104 complaints), the transmission and drivetrain (50 complaints). Those groups are in the public record and are not covered by the issues below. Treat them as something to ask about, not as absent.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2021 Ford Mustang Mach-E

Ranked by wallet impact. These are documented, recurring problems — not freak accidents.

High-voltage battery main contactor overheating (recall)High — wallet impact

Ford recalled Mach-Es for contactors that could overheat during DC fast charging or hard acceleration, causing a loss of motive power. The remedy included software and, in some cases, hardware. Verify closure by VIN.

Repair cost: $0 recall

Source: NHTSA complaints filed under electrics and electronics (151), throttle and cruise control (37).

12-volt battery failures immobilizing the carMedium

A dead auxiliary battery leaves the car unable to start despite a full traction pack. Ford issued software updates addressing the drain.

Repair cost (estimate): $200-$400

Source: NHTSA complaints filed under electrics and electronics (151).

Software and infotainment bugsMedium

Early SYNC 4A builds had freezes and connectivity failures. Over-the-air updates addressed many — confirm the car is on current software.

Repair cost (estimate): $0 OTA

Source: NHTSA complaints filed under electrics and electronics (151).

Cold-weather range and charging speedMedium

Standard-range cars without a heat pump lose significant range in winter and precondition slowly for fast charging.

Repair cost: Not yet priced

Source: not yet checked against public records.

Walk-Away Red Flags

✗Open recalls, especially the contactor recall
✗Repeated 12-volt battery failures
✗Software several versions behind
✗Rideshare use with heavy DC fast charging

Good Signs

✓All recalls completed and software current
✓Extended-range battery with home Level 2 charging history
✓Remaining eight-year battery warranty documented

Found a specific Ford Mustang Mach-E?

This page covers what goes wrong on the 2021 Ford Mustang Mach-E in general. The Kestrel report covers this specific car— the asking price vs. market, the photos, the seller's description, and a BUY / NEGOTIATE / WALK AWAY verdict with a negotiation script.

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Not ready to pay for one? The free read is instant and needs no card — it checks the asking price against the market and names the top issues for this year. It stops short of the verdict, because that needs the photos.

Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.