Diagsheet

2015 Hyundai Sonata · symptom sheet

Multiple warning lights come on at once

  • 29owner reports
  • 66,000median miles
  • 1involved a crash

Newest report Jul 16, 2026 · checked Oct 2, 2026

305 of the 1,144 complaints on this car are about the electrical system. 29 of those describe warning lights.

1 recall on this systemcovering the 2015 model year
1 crashin 29 reports
1 firein 29 reports

Tick what matches of 29 reports

27
1
11
9
5

Warning lights on other Sonata years

No other Sonata model year has enough reports of warning lights for a sheet of its own. See every Sonata year.

What this problem usually is

This sheet is for the moment the whole dash lights up at once: a string of warnings for systems that seem to have nothing to do with each other. Sometimes features drop out. Sometimes it's all gone on the next start. When that many systems complain together, it makes sense to look first at what they have in common.

Read the full explainer · Which cars report it most

What got replaced

Owners who name the part that was replaced mention the battery (5 reports), the module (4 reports) and the sensor (3 reports).

Recalls and investigations

One recall on the electrical system covers the 2015 model year. A recall on the same system isn't always the same failure, so read the defect text.

15V-678Oct 20, 2015
Electrical System: Instrument Cluster/Panel

The affected vehicles are equipped with an Antilock Braking System (ABS) warning light intended to warn the driver if there is an ABS malfunction.

Risk, remedy and owner complaints on recall 15V-678

All 9 recalls on the 2015 Hyundai Sonata, with the owner complaints on each recalled system

NHTSA investigations into the electrical system on the Sonata

PE19-003opened Mar 29, 2019
Electrical · model years 2011 to 2014

Non-crash vehicle fires. Closed dec 22, 2021, led to recall 20V-061.

DP18-003opened Aug 21, 2018
Electrical · model years 2011 to 2014

Non-crash vehicle fires. Closed may 10, 2019, led to recall 18V-907.

PE94-043opened May 27, 1994
Electrical · model years 1986 to 1991

Charging system failures. Closed oct 31, 1994.

None of these investigations covers the 2015 model year.

When it happens

The middle half of failures fell between 38,500 and 125,100 miles, from the 20 reports that gave a mileage.

Complaints by the year NHTSA received them: 2015: 1, 2016: 3, 2017: 3, 2018: 3, 2019: 2, 2020: 2, 2021: 2, 2022: 5, 2023: 2, 2024: 2, 2025: 3, 2026: 11'153'163'173'182'192'202'215'222'232'243'251'26

What owners wrote

“The power steering started malfunctioning and then caused all warning lights on the dash to illuminate including check engine, power steering, abs, and after coming to a stop and waiting several minutes the lights went off but power steering was still not operating correctly”

Filed Nov 19, 2022

Should you keep driving it?

This page can't tell you that. 1 of 29 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.

Guide Which lights mean pull over now? Warning lights by color and urgency

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