14 of the
548 complaints about the 2018 Hyundai Sonata are about the
driver-assist systems — 3% of everything
reported for this model year.
Half of the failures with a mileage on record happened before
78,650 miles.
C
14
Complaints
1
Crashes
0
Fires
1
Injuries
Exactly what failed
Automatic Emergency Braking
535.7%
Blind Spot Detection
321.4%
Warnings
321.4%
Adaptive Cruise Control
214.3%
Rearview System Braking
17.1%
Driver Assist & Collision Avoidance across every Hyundai Sonata year
About a year and half ago, a lot of my engine trouble lights turned on while driving. It was sleeting at that time when the lights turned on and they're still on today. I paid to have the Hyundai dealer to check it out soon after the trouble lights first turned on. They diagnosed the problem as a faulty HECU. I would have had them replace this, but they estimated it would cost about $3800 to fix. This HECU malfunction is causing the following issues: ABS does not work, traction control does not work, forward collision prevention does not work, brake auto hold does not work, cruise control does not work probably because it can't auto brake any more. I've had some scary times driving and trying to stop when the roads have been wet or snowy.
NHTSA complaint #11681116 — an unverified report by a vehicle owner.
When starting car warning lights came on for ABS, AEB, Cruise Control. Cruise control is locked out and not working due to these warnings.
NHTSA complaint #11673638 — an unverified report by a vehicle owner.
Glenwood, IA
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
When starting car warning lights came on for ABS, AEB, Cruise Control. Cruise control is locked out and not working due to these warnings.
NHTSA complaint #11673638 — an unverified report by a vehicle owner.
Douglasville, GA
BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
BSD system stopped working one day along with the Rear Cross Traffic Alert.The button which operates system does not come and system does not work. Warning lamp lit on instrument panel and said" check B SD system" meaning the whole system doesn't work. Took to my local shop and they couldn't repair as they stated the system is a proprietary system the had no software. service bulletin #19-BE-009H was issued in 5-19 by Hyundai for this issue with car. So there is a know problem
NHTSA complaint #11648673 — an unverified report by a vehicle owner.
Douglasville, GA
LANE DEPARTURE: BLIND SPOT DETECTION
BSD system stopped working one day along with the Rear Cross Traffic Alert.The button which operates system does not come and system does not work. Warning lamp lit on instrument panel and said" check B SD system" meaning the whole system doesn't work. Took to my local shop and they couldn't repair as they stated the system is a proprietary system the had no software. service bulletin #19-BE-009H was issued in 5-19 by Hyundai for this issue with car. So there is a know problem
NHTSA complaint #11648673 — an unverified report by a vehicle owner.
Vehicle 1 operating normally in traffic on [XXX] in Westfield MA. Operator 1 notices alert on dashboard. As Operator 1 looks down briefly and returns eyes immediately to the road, she sees Vehicle 2 braking to slow or stop. Operator 1 depresses brakes, but vehicle does not slow as it usually does, nor does Automatic Emergency Braking engage as it always has in the past. Front of Vehicle 1 makes contact with rear of Vehicle 2. Dashcam footage appears like brakes did not activate at all, either manually or automatically. Vehicle 1 airbags deploy. Westfield Police respond, as well as Westfield Fire, who cut the battery cable. Vehicle towed to Interstate Towing, Inc. Yard 5, 20 Clifton St, Westfield, Ma 01085. (413) 593-1900 interstatetowing.com. Owner 1 viewed vehicle at tow yard, and noted that the battery was completely melted, with only portions of the plastic casing along with internal plates visible. Much of the plastic and rubber components immediately adjacent to battery location were melted and deformed. As a layperson, it almost appears as though the battery was in the process of shorting out just prior to the collision, possibly rendering many of the safety systems inoperable. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11571357 — an unverified report by a vehicle owner.
ABS module stopped working and the ABS module light is on. Car automatically brakes by its self sometimes or locks up at stop lights creating dangerous driving situations
NHTSA complaint #11556945 — an unverified report by a vehicle owner.
Bardstown, KY
LANE DEPARTURE: BLIND SPOT DETECTION
Warning lights keep coming on for ABS and Blind Spot Detection. Please help as I know this has been recalled in other 2018 Sonatas. So why is my VIN # not included in these recent recalls?? I FEAR for mine and my daughter's safety as she turned 16 in February 2023 and started driving this car in August 2023. PLEASE HELP!!
NHTSA complaint #11556365 — an unverified report by a vehicle owner.
Warning lights keep coming on for ABS and Blind Spot Detection. Please help as I know this has been recalled in other 2018 Sonatas. So why is my VIN # not included in these recent recalls?? I FEAR for mine and my daughter's safety as she turned 16 in February 2023 and started driving this car in August 2023. PLEASE HELP!!
NHTSA complaint #11556365 — an unverified report by a vehicle owner.
RIGHT WHEEL SPEED SENSOR FAILED IN FEB 2023 NOW LEFT REAR WHEEL SENSOR HAS FAILED IN AUG HAS 50486 MILES
NHTSA complaint #11539612 — an unverified report by a vehicle owner.
Powhatan, VA
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
RIGHT WHEEL SPEED SENSOR FAILED IN FEB 2023 NOW LEFT REAR WHEEL SENSOR HAS FAILED IN AUG HAS 50486 MILES
NHTSA complaint #11539612 — an unverified report by a vehicle owner.
Powhatan, VA
FORWARD COLLISION AVOIDANCE: WARNINGS
RIGHT WHEEL SPEED SENSOR FAILED IN FEB 2023 NOW LEFT REAR WHEEL SENSOR HAS FAILED IN AUG HAS 50486 MILES
NHTSA complaint #11539612 — an unverified report by a vehicle owner.
Brooklyn, NY
LANE DEPARTURE: BLIND SPOT DETECTION
when the car is cold it would not start. I checked what the problem can be online and it turns out that there are a lot of out cars with the same problem. The problem is starter. sever people after changing the starter there vehicle was fixed. Another problem is sometimes the blind spot warning system does not work. These problems are reported by people with the same car but not by dealers.
NHTSA complaint #11442446 — an unverified report by a vehicle owner.
at 300 milesNiles, OH
FORWARD COLLISION AVOIDANCE: WARNINGS
TL* THE CONTACT OWNS A 2018 HYUNDAI SONATA. THE CONTACT STATED THAT THE EARLY DETECTION, FORWARD WARNING, COLLISION WARNING, AND AUTOMATIC BRAKING FEATURES WERE INOPERABLE. THE VEHICLE WAS TAKEN TO GREAT LAKES HYUNDAI (9630 OH-14, STREETSBORO, OH 44241, (330) 422-1212) TO BE DIAGNOSED, BUT THE MECHANIC WAS UNABLE TO RETRIEVE A FAULT CODE OR DUPLICATE THE FAILURE. THE CONTACT WAS ALSO INFORMED THAT THE EARLY WARNING SENSORS COULD NOT BE RE-CALIBRATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 300. *TT
NHTSA complaint #11103951 — an unverified report by a vehicle owner.