Research
2021 Hyundai Ioniq HybridRecalls, problems, MPG & safety
NHTSA lists 0 safety recalls and 13 owner complaints for the 2021 Hyundai Ioniq Hybrid. Most complaints involve electrical system (7) and service brakes (3).
Combined MPG
—
No EPA rating found
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
13
Top: electrical system
Fuel cost / yr
—
No EPA estimate
Safety recalls
NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2021 Hyundai Ioniq Hybrid as of Nov 10, 2026.
Data from NHTSA Recalls API · synced Nov 10, 2026NHTSA vehicle page
Owner complaints by component
13 complaints filed with NHTSA · Oct 2021 – May 2025
- Electrical system7
- Service brakes3
- Forward collision avoidance3
- Vehicle speed control2
- Engine1
- Back over prevention1
- Other / unknown3
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 10, 2026 · Full problem breakdownNHTSA vehicle page
What owners report most
Verbatim excerpts from NHTSA complaints, by component
Electrical system
7 reports
“The contact owns a 2021 Hyundai Ioniq Hybrid. The contact stated that while driving at various highway speeds, the electronic parking brake and auto hold indicator lights erroneously activated. The cause of the failure was not yet determined. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The VIN was not available. The failure mileage was 16,000.”
Service brakes
3 reports
“Auto brake fault has been a constant issue with this 2021 Hyundai Ioniq Hybrid. This causes lots of system functions to stop working (adaptive crusice control, lane keeping assistant, etc.) The dealer originally replaced the wiring harness, but it came back again and again with the same issue. They finally figured out that replacing the rear calipers seemed to make it stop. They have done that twice and this past weekend the fault warning appeared again. So, for the 4th time, we will be taking the car back in so this error goes away. For additional details, I will give you the most recent time, but note that the other 3 times all happened with in the first 1-3 years of ownership.”
Forward collision avoidance
3 reports
“I’m driving with cruise control on the highway at 65 and all of a sudden it shuts off. The check cruise system light comes on along with a triangle with an exclamation point in the middle of it in the lower left side of dashboard and the letters EPB lights up on the lower right side of dashboard.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026
NHTSA 5-Star Safety Ratings
1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2021 Hyundai Ioniq Hybrid as of Nov 10, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 10, 2026Vehicle 15701
Maintenance basics
General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
- Engine oil & filter5,000–10,000 mi
6–12 months - Tire rotation5,000–7,500 mi
Every oil change - Engine air filter15,000–30,000 mi
1–2 years - Cabin air filter15,000–25,000 mi
1–2 years - Brake fluid—
2–3 years - Coolant60,000–100,000 mi
5–10 years - Spark plugs60,000–100,000 mi
— - 12V battery—
3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
2021 Ioniq Hybrid questions
How many recalls does the 2021 Hyundai Ioniq Hybrid have?
0 recalls found in NHTSA data as of Nov 10, 2026.
What are the most common 2021 Hyundai Ioniq Hybrid problems?
Owners filed 13 complaints with NHTSA. The most-cited components are electrical system (7), service brakes (3), forward collision avoidance (3). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
Data from NHTSA & EPA · synced Nov 10, 2026