2023 Hyundai SONATA HYBRID

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2023 Hyundai SONATA HYBRID has 23 owner complaints filed with NHTSA — that's 0.3x the segment average of 80. The most common issue is engine problems (30% of all complaints), specifically: dtc subsystem ems failed engine over heated. car diagnostic failed displaying p00b700. hyundai issued tsb covering issue dealer failed to notify since nhtsa did not require action. car has been in garage waiting for appointment. this could have left me stranded..

5 crash reports 6 injuries

Total Complaints

Recalls Issued

—/5

Safety Stars

0.3x

vs Segment Avg

Known Problems

ENGINE

7 complaints

30%

• DTC subsystem EMS failed engine over heated. Car diagnostic failed displaying P00B700. Hyundai issued TSB covering issue dealer failed to notify since NHTSA did not require action. Car has been in garage waiting for appointment. This could have left me stranded.
• At 82,000 miles car started to consume coolant. Had EHRS TBS performed coolant no longer leaking. Thi is the 2nd car that had this coolant issue.
• I BOUGHT THIS CAR BRAND NEW IN NOVEMBER 2023, BY FEBRUARY, THE CAR STARTED STALLING ON THE STREETS/HYWAY. ALL DASH LIGHTS WOULD COME ON, THE VEHICLE WOULD STALL AND IS NO LONGER ABLE TO RESTART. THIS HAPPENED 4 TIME IN 2024. WHEN I TOW IT TO THE DEALER, THEY ALWAYS COME BACK WITH THE SAME ANSWER.

Typical onset: 50K miles Est. repair: $500

“DTC subsystem EMS failed engine over heated. Car diagnostic failed displaying P00B700. Hyundai issued TSB covering issue dealer failed to notify since NHTSA did not require action. Car has been in garage waiting for appointment. This could have left me stranded.”

— NHTSA complaint filing

VISIBILITY

3 complaints

13%

• Moonroof shattered yes could have lost control due to fright/heart attack no Insurance said it happens to Hyundai often no warning at all
• Sunroof burst while driving on freeway at a low speed due to heavy traffic. There were no overpasses or bridges above the vehicle when explosion was heard. No point of impact on sunroof from possible rocks and glass is shattered but in one piece and it appears to have burst outwards as it’s bowing u
• Sunroof burst while driving on freeway at a low speed due to heavy traffic. There were no overpasses or bridges above the vehicle when explosion was heard. No point of impact on sunroof from possible rocks and glass is shattered but in one piece and it appears to have burst outwards as it’s bowing u

Typical onset: 50K miles Est. repair: $500

“Moonroof shattered yes could have lost control due to fright/heart attack no Insurance said it happens to Hyundai often no warning at all”

— NHTSA complaint filing

TRANSMISSION

3 complaints

13%

• The car did not shift from Drive to Park after coming to a stop and pressing the Park button. This caused the car to roll forward slowly and run into our garage door. This is not the first time the car hasn't shifted.
• The push button shifters do not shift gears, unless the brake is depressed. On a slight incline, it is natural to shift from forward to reverse without braking leaving the driver in the wrong gear. So I have often started forward expecting to go backwards. I accidently ran over a portable toilet try
• Similar to other stories I’ve read online, my 2023 sonata broke down on the highway a minute after any error signal popping up, in a dangerous location on the highway with no shoulder. Plaza Hyundai dealership was first/last and only people to perform an oil change or service the car. They told me

Typical onset: 50K miles Est. repair: $500💥 2 crashes

“The car did not shift from Drive to Park after coming to a stop and pressing the Park button. This caused the car to roll forward slowly and run into our garage door. This is not the first time the car hasn't shifted.”

— NHTSA complaint filing

FUEL SYSTEM

3 complaints

13%

• The vehicle went in for repair at the dealership early July for a check engine light and DTC error code. It was revving high after being driven for more than 20 min or so and wouldn’t get to above 60 mph. Jerky, dangerous acceleration and deceleration seemingly out of nowhere. The dealership replac
• On 11/28/25 at approximately 6:30 pm, I was driving on a Highway 17 going about 60 mph when my car's engine completely shut down. a "Hybrid System Failure" warning flashed and my car was no longer drivable. The car was towed to the dealership. In mid October 2025, my car stopped running with the
• UNKNOWN- While driving on highway, from 70 mph speed the car suddenly lost acceleration and speed dropped. No response to accelerator. Even with pushing the accelerator high, car will go in high RPM and speed will barely reach 40 mph. I was lucky that there was no other vehicle behind me, especial

Typical onset: 50K miles Est. repair: $500

“The vehicle went in for repair at the dealership early July for a check engine light and DTC error code. It was revving high after being driven for more than 20 min or so and wouldn’t get to above 60 mph. Jerky, dangerous acceleration and deceleration seemingly out of nowhere. The dealership replac”

— NHTSA complaint filing

SPEED CONTROL

2 complaints

• The Hyundai Sonata was brought to a stop in a parking lot. When the driver went to put it in park, the vehicle accelerated across the parking lot and smashed into a solid wall. The driver broke her right ankle from standing on the brake pedal. The brakes were ineffective at stopping the vehicle. The
• UNKNOWN- While driving on highway, from 70 mph speed the car suddenly lost acceleration and speed dropped. No response to accelerator. Even with pushing the accelerator high, car will go in high RPM and speed will barely reach 40 mph. I was lucky that there was no other vehicle behind me, especial

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“The Hyundai Sonata was brought to a stop in a parking lot. When the driver went to put it in park, the vehicle accelerated across the parking lot and smashed into a solid wall. The driver broke her right ankle from standing on the brake pedal. The brakes were ineffective at stopping the vehicle. The”

— NHTSA complaint filing

Estimated Repair Costs

ENGINE(~50K mi)

$500

VISIBILITY(~50K mi)

$500

TRANSMISSION(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

SPEED CONTROL(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 23 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: DTC subsystem EMS failed engine over heated. Car diagnostic failed displaying P00B700. Hyundai issued TSB covering issue dealer failed to notify since NHTSA did not require action. Car has been in garage waiting for appointment. This could have left me stranded.
Typically appears around 50K miles. Repair cost ~$500
☐
VISIBILITY: Moonroof shattered yes could have lost control due to fright/heart attack no Insurance said it happens to Hyundai often no warning at all
Typically appears around 50K miles. Repair cost ~$500
☐
TRANSMISSION: The car did not shift from Drive to Park after coming to a stop and pressing the Park button. This caused the car to roll forward slowly and run into our garage door. This is not the first time the car hasn't shifted.
Typically appears around 50K miles. Repair cost ~$500
☐
FUEL SYSTEM: The vehicle went in for repair at the dealership early July for a check engine light and DTC error code. It was revving high after being driven for more than 20 min or so and wouldn’t get to above 60 mph. Jerky, dangerous acceleration and deceleration seemingly out of nowhere. The dealership replac
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)