Last updated: 2026-10-10
Ford Mustang Mach-E vs Hyundai Ioniq 5: Reliability Compared
Ford Mustang Mach-E
Hyundai Ioniq 5
Reliability favors the Mustang Mach-E by a large margin over the Hyundai Ioniq 5. The deciding fact is the Ioniq 5's ICCU failure, which cuts power and can stop the car on the highway. Mach-E owners filed far fewer complaints.
How Do the Ford Mustang Mach-E and Hyundai Ioniq 5 Generations Compare?
Verdict
The Ford Mustang Mach-E is more reliable than the Hyundai Ioniq 5, scoring 72/100 vs 54/100.
Far fewer owner complaints per car sold make the Mach-E the more reliable pick, and the gap is large. Its worst reports are scattered faults rather than one repeating failure. The Ioniq 5 has a dominant pattern: a failed ICCU that cuts power, often after a pop and a warning, and can leave the car stopped at highway speed. Repairs on it can run a week or more because replacement parts were back ordered. The Mach-E has serious faults of its own, but none is as concentrated.
Key Differences
- 1Ford Mustang Mach-E has 52.7 fewer complaints per 10k sold
- 2Ford Mustang Mach-E scores 18 points higher in reliability
- 3Ford Mustang Mach-E has 5 fewer total recalls
Category Scoreboard
Ford Mustang Mach-E vs Hyundai Ioniq 5: Which Is More Reliable?
| Metric | Ford Mustang Mach-E | Hyundai Ioniq 5 |
|---|---|---|
| Reliability Score | 72/100 | 54/100 |
| Years Tracked | 4 | 5 |
| Total Recalls | 13 | 18 |
| Complaints per 10k Sold | 10.7 | 63.4 |
| Year Wins | 4 | 0 |
What Are the Common Problems With the Ford Mustang Mach-E and Hyundai Ioniq 5?
One failed part drives most Ioniq 5 trouble. A pop and a "check electrical system" warning come first, then a power-limited crawl and a dead car. The 12V battery stops charging, and failures have returned after recall work. Its electrical area has 5 crash-linked reports, while the Mach-E electrical area has none. Mach-E problems are more varied: a blank instrument display, a "Stop Safely Now" shutdown that locks the car in Park, parking brake faults from a corroded connector, and unintended acceleration after a stop or from a bumped cruise button.
| Component | Ford Mustang Mach-E | Hyundai Ioniq 5 |
|---|---|---|
| ELECTRICAL SYSTEM | 3.6Average | 36.8High |
| POWER TRAIN | 2.1Low | 12.1Above Avg |
| UNKNOWN OR OTHER | 1.2Low | 2.9Low |
| SERVICE BRAKES | 0.8Very Low | 1.2Low |
| VEHICLE SPEED CONTROL | 0.7Very Low | 1.3Low |
| FORWARD COLLISION AVOIDANCE | 0.2Very Low | 1.4Low |
| FUEL/PROPULSION SYSTEM | —None | 1.5Low |
| STEERING | 0.6Very Low | 0.7Very Low |
| EXTERIOR LIGHTING | —None | 0.9Very Low |
| LANE DEPARTURE | —None | 0.7Very Low |
| ENGINE | 0.1Very Low | 0.3Very Low |
| TIRES | —None | 0.4Very Low |
| STRUCTURE | 0.3Very Low | —None |
| VISIBILITY/WIPER | —None | 0.3Very Low |
| AIR BAGS | 0.2Very Low | —None |
| PARKING BRAKE | —None | 0.1Very Low |
Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.
How Does Ford Mustang Mach-E vs Hyundai Ioniq 5 Reliability Compare by Year?
| Year | Ford Mustang Mach-E | Hyundai Ioniq 5 | Edge |
|---|---|---|---|
| 2026 | 74/1002R / 0C | 63/1002R / 3C | Ford Mustang Mach-E |
| 2025 | 72/1005R / 8C | 53/1008R / 158C | Ford Mustang Mach-E |
| 2024 | 74/1003R / 35C | 58/1002R / 134C | Ford Mustang Mach-E |
| 2023 | 66/1003R / 104C | 50/1003R / 311C | Ford Mustang Mach-E |
Best years to cross-shop: The 2024 Ford Mustang Mach-E scored 74/100 and the 2024 Hyundai Ioniq 5 scored 58/100 — the strongest shared model years that have been on the road for at least two years, where available.
Who Should Buy the Ford Mustang Mach-E vs the Hyundai Ioniq 5?
Ford Mustang Mach-E vs Hyundai Ioniq 5: Common Questions
- Is the Hyundai Ioniq 5 more reliable than the Ford Mustang Mach-E?
- No. The Mach-E leads by a large gap. Owners filed 147 complaints on it, against 955 for the Ioniq 5, and the Ioniq 5's problems repeat around one part, the ICCU. When that part fails, the car loses power and can stop, sometimes at highway speed.
- Which has more recalls, the Ioniq 5 or the Mach-E?
- The Ioniq 5 has more. Federal recall records show 18 across its five model years, against 13 across four for the Mach-E. Recall counts grow with time on the road, so the gap is partly about years, but the Ioniq 5 also has the heavier complaint load.
- What is the main problem with the Ioniq 5?
- A failed ICCU. Owners describe a loud pop, a "check electrical system" warning, and a power-limited mode that caps speed before the car stops. The 12V battery stops charging, failures have returned after recall work, and back-ordered parts have stretched repairs to a week or more.
- What goes wrong on the Mustang Mach-E?
- Complaints are spread out. The instrument display can go blank while driving, and some cars lose propulsion with a red "Stop Safely Now" warning. Others have a parking brake fault from a corroded connector, or surge forward after a stop. Park rod recall parts also kept some cars at dealers for weeks.
- Which model years should I avoid?
- On the Ioniq 5, avoid 2022 and 2023, its weakest years. On the Mach-E, be careful with 2023 and 2025. The 2024 is among the strongest for both. A 2026 has had little time to collect complaints, so do not treat it as proven.
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Decided between Ford Mustang Mach-E and Hyundai Ioniq 5? Run a VIN check before you buy — uncover hidden accidents, title issues, and open recalls.
How we score the Ford Mustang Mach-E and Hyundai Ioniq 5
Scores weight complaint severity at 35%, repair costs at 30%, recall impact at 20%, and the spread of complaints across systems at 15%, with complaint counts adjusted for US sales. Read the full methodology.
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