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BrakesPart report

2017 Hyundai Ioniq Hybrid Brakes Problems

Complaints
3about this part
Share
7%of 42 total for the year
Median mileage
2,800miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the brakes of the 2017 Hyundai Ioniq Hybrid, 7% of the 42 complaints for this model year. Where a mileage was given, the median is 2,800 miles. 1 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Driving on the northbound 3-lane section of I-75, I moved from center lane where I was behind a huge semi truck that blocked vision ahead, so I moved into the left lane when all traffic had passed and it was clear. Then immediately ahead at approximately 5 car lengths from me in left lane, a large SUV had stopped dead in that left lane of interstate along with other vehicles ahead of him. There was no shoulder available, just continuous concrete jersey rail, and no opening on my right to go to. …”

NHTSA complaint #11221794, filed 2019-06, 2,800 miles

“The 12v ion battery system part number 37507-g2120 (iccu) battery failed while driving, causing gas engine to turn off, which cancels power braking and steering, making vehicle impossible to control. Read many reports on reddit and ioniq forums of this happening. No. It is unoperable there was no warning what so ever. No light, no symbol, nothing. Was traveling 40 MPH on a busy road with family, during a lane change this happend and the vehicle turned off completely. I could not control vehicle, and went into a ditch. …”

NHTSA complaint #11665873, filed 2025-06

“Integrated Brake Accuation Unit failed per dealer repair location. Codes indicated on attached repair invoice receipt. (Document is Uploaded). This was a very expensive repair. Per dealer service advisor and technician they had never seen this before. 2 brake lights on the dash indicated major brake failure. The vehicle was immediately taken to the dealer for repair. See additional details regarding concern, cause. correction, and parts replaced on invoice. If this had not been repaired immediately, this could have put others at risk and caused an accident. …”

NHTSA complaint #11554721, filed 2023-11

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
20221771%
2021323%
2020212%
2019319%
201818%
201737%

Other parts of the 2017 Hyundai Ioniq Hybrid

Electrical system
15 complaints
Engine
12 complaints
Hybrid propulsion system
7 complaints
Other or unknown
7 complaints
Transmission and drivetrain
7 complaints
Fuel system
5 complaints
Vehicle speed control
3 complaints
Electronic stability control
2 complaints
Steering
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Air bags
1 complaints
Exterior lighting
1 complaints

← All problems reported for the 2017 Hyundai Ioniq Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology