Built from official NHTSA complaint and recall data · data through 07/14/2026
High complaint levelIts most-reported problem — Engine — runs 4.3× the fleet median for that category across the 2583 model-years tracked on this site.
1,127Complaints
9Recalls
34Crashes
47Fires
32Injured
2Deaths
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Engine (54.3% of complaints) — was examined in a now-closed NHTSA investigation that closed with a recall campaign (23V877).
Engine complaints here are 4.3× the median for that category across the 2583 model-years tracked on this site.
4 of the 6 most-reported categories on this page are backed by a recall or open investigation; the other 2 rest on owner reports alone.
Complaint category
Reports
Official status
Reference
Engine
612 · 54.3%
Investigation closed
DP22003 · EA21003 → recall 23V877
Electrical System
159 · 14.1%
Recalled
Recall 15V678000
Power Train
133 · 11.8%
Recalled
Recall 14V784000
Steering
72 · 6.4%
Recalled
Recall 14V325000
Service Brakes
72 · 6.4%
Recalled
Recall 14V368000
Fuel/propulsion System
72 · 6.4%
No official action
—
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
Percentages are the share of the 1,127 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
If the parking brake indicator is not illuminated when the parking brake is applied, the driver may operate the vehicle with the parking brake partially engaged, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
If the driver is alerted there is a brake system malfunction, but not specifically with the ABS system, the driver may operate the vehicle unaware that the vehicle's brakes may lock up during hard braking, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
If the front passenger seat belt cannot be latched, an occupant sitting in the front passenger seat has an increased risk of injury in the event of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Service Brakes, Hydraulic:foundation Components:disc:caliper
If a brake caliper fractures, brake effectiveness would be reduced, lengthening to distance required to stop the vehicle, increasing the risk of a crash. Recall repairs are free at authorized dealers.
The reduction of power steering assist can increase the steering effort needed, increasing the risk of a crash. Recall repairs are free at authorized dealers.
If the left axle shaft separates from the transaxle, the vehicle may stop moving, increasing the risk of a crash. Additionally, a separated axle shaft may allow the vehicle to roll away as the driver and other occupants exit the vehicle or anytime thereafter.… Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
A turn signal that activates in the opposite direction of what was intended by the driver increases the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
What owners report
“SHORTLY AFTER EXITING INTERSTATE AND SLOWDOWN FOR SIGNAL, I ATTEMPTED TO ACCELERATE AND THE VEHICLE WAS TOTALLY UNRESPONSIVE, LIKE I WASN'T EVEN GIVING IT GAS…”NHTSA complaint 10928165 — filed 11/27/2016 · ENGINE
“I GOT MY CAR WITH 15 MILES ON IT, BEFORE I EVEN HAD 10 THOUSAND MILES THE CAR HAD A TRANSMISSION HEAT UP. TOOK IT…”NHTSA complaint 10919186 — filed 10/26/2016 · ENGINE
“THE CAR AT ABOUT 7K MILES STARTED USING OIL A QT, EVERY 2500 MI. THEY ARE TELLING ME IT IS NORMAL . IT IS POLLUTING…”NHTSA complaint 10919132 — filed 10/26/2016 · ENGINE
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 2015 Hyundai Sonata?
Engine issues are the most-reported category, cited in 612 of 1,127 NHTSA complaints (54.3%), followed by unspecified/other issues (161), electrical system (159), power train (133). Complaints are unverified owner reports.
How many complaints does the 2015 Hyundai Sonata have?
1,127 complaints were on file with NHTSA as of 07/14/2026. Of those, 34 involved a crash, 47 involved a fire, and 32 reported injuries. 2 deaths were reported.
Does the 2015 Hyundai Sonata have any recalls?
Yes — 9 NHTSA safety recall campaigns, including campaign 16V726000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 2015 Hyundai Sonata's reported problems?
4 of the 6 most-reported complaint categories on this page are backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.
Is a complaint proof of a defect?
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.
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