Diagsheet

Electric cars · model years 2022 to 2023

Hyundai Ioniq 5 vs Ford Mustang Mach-E: problems and reliability

On the 7 measures below that do not grow with sales, the Ioniq 5 looks better on 4 and the Mustang Mach-E on 0, with 3 too close to call.

Hyundai Ioniq 5

Hyundai Ioniq 5

791 complaints · 5 recalls

Ford Mustang Mach-E

Ford Mustang Mach-E

260 complaints · 12 recalls

Newest report Sep 22, 2026 · checked Sep 27, 2026

Counts are not adjusted for sales. The more cars of a model there are on the road, the more complaints it draws, so the raw totals above say a lot about sales. Everything below compares shares of each model's own complaints, the mileage problems start at, recalls per model year and each model's years against its own median.

Scorecard

Measure, 2022 to 2023Ioniq 5Mustang Mach-E
Complaints that report a crash2.3%8.8%
Complaints that report a fire0.5%0.4%
Complaints that report an injury0.5%2.3%
Median miles when problems are reported20,00016,000
Recall campaigns per model year2.56.0
Do-not-drive recalls00
NHTSA investigations34

The shaded side is lower (for miles, higher). Values within about a tenth of each other count as too close to call.

What owners complain about

The system Ioniq 5 owners complain about most is electrical, and it is the same for the Mustang Mach-E. Complaints citing electrical make up 73% of all Ioniq 5 complaints, against 49% on the Mustang Mach-E. The Mustang Mach-E leans the other way on collision avoidance: 17% of its complaints, against 5.8% for the Ioniq 5.

Hyundai Ioniq 5Ford Mustang Mach-E

Electrical73%49%
Transmission and drivetrain20%19%
Fuel and propulsion20%12%
Collision avoidance5.8%17%
Brakes5.8%15%
Engine9.2%8.8%
Speed control5.4%12%
Steering1.9%5.4%
Lane keeping1.6%4.2%
Structure0.8%3.1%

Share of each model's complaints that cite each system, from NHTSA's own component codes. One complaint can cite several systems, so the shares add up to more than 100%.

The most reported problems

The most reported problem on the Ioniq 5 is dead battery (28% of its complaints), and the Mustang Mach-E shares it (20%).

ProblemIoniq 5Mustang Mach-E
Battery dies or the car will not start28% 223most in 2022 · 19k mi20% 53most in 2022 · 24k mi
Infotainment, screen or backup camera fails13% 103most in 2022 · 25k mi20% 51most in 2022 · 20k mi
Engine stalls or loses power while driving16% 129most in 2023 · 20k mi11% 2818k mi
Hybrid or EV system warning, loss of power10% 80most in 2022 · 28k mi15% 39most in 2022 · 12k mi
Brakes grind, pulse or wear early5.8% 4615% 4022k mi
Adaptive cruise or lane keeping misbehaves2.4% 1911% 28
Forward collision warning goes off or the camera drops out2.0% 165.8% 15
Multiple warning lights come on at once3.3% 264.2% 11

Share of each model's own complaints, with the count beside it. "Most in" links to the symptom sheet for the model year with the most reports of it, and the mileage is the median from reports that gave one.

When problems start

Mustang Mach-E owners report problems earlier. Half the Mustang Mach-E complaints that give a mileage come before 16,000 miles; for the Ioniq 5 the halfway point is 20,000. 88% of Ioniq 5 reports and 96% of Mustang Mach-E reports come before 50,000 miles. Older model years have had longer to reach high mileage, so a window that runs to recent years pulls both medians down.

Hyundai Ioniq 5Ford Mustang Mach-E

Under 25k64%73%
25k to 50k24%22%
50k to 75k6.2%2.2%
75k to 100k1.2%0.0%
100k to 150k3.8%2.2%
Over 150k1.2%0.0%

Share of the complaints that state a mileage: 80 for the Ioniq 5 and 45 for the Mustang Mach-E.

Worst and best years

No Ioniq 5 model year stands out from the rest. The 2021 Mustang Mach-E draws 2.0 times the complaints of a typical Mustang Mach-E year for its age.

Hyundai Ioniq 5

  • Years to avoid: none stands out
  • Best years: none since 2016 is clearly better

Every Ioniq 5 model year

Ford Mustang Mach-E

  • Years to avoid: 2021
  • Best years: 2024

Every Mustang Mach-E model year

Hyundai Ioniq 5Ford Mustang Mach-E

Each model year against its own model's median. Ioniq 5: 2022 1.0, 2023 1.2. Mustang Mach-E: 2022 0.9, 2023 1.1.2022 Ioniq 5: 1.0 times its median2022 Mustang Mach-E: 0.9 times its median'222023 Ioniq 5: 1.2 times its median2023 Mustang Mach-E: 1.1 times its median'231x

Each bar is that model year's complaints for each year on the road, divided by the same figure for a typical year of the same model (the dashed line). Measuring each model against itself takes the sales gap between the two out of the picture, so they can share a scale. Years too new to judge are left out.

Recalls and investigations

The Mustang Mach-E draws more recalls: 6.0 campaigns per model year against 2.5 for the Ioniq 5. A recall counts once however many cars it covers, so this figure does not grow with sales the way complaint totals do.

Hyundai Ioniq 5

5 recall campaigns and 3 NHTSA investigations across these model years. Most recalled: electrical (3), parking brake (1) and transmission and drivetrain (1).

  • 24V-204 (electrical) covers 2 model years
  • 24V-868 (electrical) covers 2 model years

Investigations

  • PE24028: Electrical arcing and thermal events, potentially leading to fires, while utilizing enel x way usa, llc's juicebox residential charger. (closed)
  • PE23011: Loss of motive power (closed, led to a recall)
  • DP22005: Pedestrian alert sounds (closed, led to a recall)

Ford Mustang Mach-E

12 recall campaigns and 4 NHTSA investigations across these model years. Most recalled: electrical (6), transmission and drivetrain (2) and seat belts (1).

  • 25V-315 (backup camera) covers 2 model years
  • 25V-404 (electrical) covers 2 model years

Investigations

  • EA25001: Collisions involving ford bluecruise (open)
  • PE24012: Collisions involving ford bluecruise (closed)
  • RQ23004: High voltage battery contactor failure (closed, led to a recall)

Whether a particular car is included depends on its VIN. Check yours at nhtsa.gov/recalls.

Crashes, fires and injuries

A larger share of Mustang Mach-E complaints report a crash: 8.8%, against 2.3% for the Ioniq 5. Fire reports: 4 for the Ioniq 5 and 1 for the Mustang Mach-E.

Hyundai Ioniq 5Ford Mustang Mach-E

Report a crash2.3%8.8%
Report a fire0.5%0.4%
Report someone hurt0.5%2.3%

Share of each model's complaints in which the owner reported it. These are owners' own accounts as filed with NHTSA, and one report on its own doesn't prove a defect.

Questions

Is the Hyundai Ioniq 5 or the Ford Mustang Mach-E more reliable?

On the 7 measures below that do not grow with sales, the Ioniq 5 looks better on 4 and the Mustang Mach-E on 0, with 3 too close to call. NHTSA complaint totals cannot settle it alone: the Ioniq 5 has 791 complaints and the Mustang Mach-E 260 for model years 2022 to 2023, and those totals follow how many of each were sold.

Which has more recalls, the Ioniq 5 or the Mustang Mach-E?

The Ioniq 5 has 5 recall campaigns and the Mustang Mach-E 12 across model years 2022 to 2023. The Mustang Mach-E draws more recalls: 6.0 campaigns per model year against 2.5 for the Ioniq 5.

What are the most common problems on the Ioniq 5 and the Mustang Mach-E?

The most reported problem on the Ioniq 5 is dead battery (28% of its complaints), and the Mustang Mach-E shares it (20%).

More comparisons

Every comparison