2015 Hyundai Sonata ELECTRICAL SYSTEM,ENGINE
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
THIS HYUNDAI SONOTA HAS A PUSH BUTTON IGNITION. ONCE THE ENGINE IS STARTED, A PERSON CAN LEAVE THE VEHICLE WITH THE KEY FOB IN THEIR POCKET AND THE ENGINE STAYS RUNNING AND WILL NOT SHUT OFF. THIS IS IN VIOLATION OF FEDERAL MOTOR VEHICLE SAFETY STANDARD 114. ONCE THE KEY IS REMOVED FROM THE VEHICLE THE ENGINE SHOULD SHUT OFF. THIS ENGINE IS SO QUIET YOU CANNOT EVEN HEAR IT RUNNING WHILE IN THE VEHICLE AND IF SOMEONE IS PARTIALLY COLOR BLIND YOU CAN BARELY SEE THE RED AND GREEN INDICATOR. THIS ENGINE WILL RUN IN AN IDLE STATE NO MATTER WHERE THE KEY CAUSING RISK OF FIRE, CARBON MONOXIDE POISINING AND DEATH AND INJURY TO ANYONE NEAR THIS VEHICLE IF LEFT RUNNING AND SINCE THE CAR STAYS RUNNING ONCE IT IS STARTED ANYONE CAN WALK AWAY WITH THE KEY FOB IN THEIR POCKET AND THE CAR STAYS RUNNING NO MATTER WHAT. THERE ARE NO REMINDERS WHEN EXITING THE VEHICLE THAT THE ENGINE IS RUNNING, THERE IS NO AUTOMATIC SHUT OFF IN THE VEHICLE, THERE ARE NO REMINDERS IN THE VEHICLE THAT THE ENGINE IS RUNNING. THE PUSH BUTTON STARTS ARE NOT ONLY A SAFETY THREAT BUT ALSO CAN BE HAZARD IN A PARKING GARAGE IF THE ENGINE CATCHES FIRE DUE TO OVER HEATING IT CAN AFFECT ALL THE OTHER VEHICLES IN A PARKING GARAGE AND CAUSE EVEN WORSE DAMAGE.
TL* THE CONTACT OWNS A 2015 HYUNDAI SONATA. WHILE DRIVING APPROXIMATELY 35 MPH, THE VEHICLE MADE A VERY LOUD SOUND AND STALLED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AND HAD IT TOWED TO THE DEALER FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 600.
AT 1540 MILES 2015 HYUNDAI SONATA LIMITED ENGINE CAM ADVANCE SENSOR FAILED. THIS CAUSED ENGINE RUNNING ROUGH AND LIMITED POWER WITH INABILITY TO CLIMB HILLS WITHOUT CONSTANTLY DOWNSHIFTING. HIGHWAY DRIVING IS DANGEROUS DUE TO INABILITY TO ACCELERATE AND MERGE AND LOSS OF POWER ON HILLS. OTHER OWNERS ARE UNABLE TO START THEIR CARS ALTOGETHER. ENGINE MONITOR WARNED OF PROBLEM AND RECOMMENDED FULL SYSTEMS DIAGNOSTIC WHICH POINTED TO CAM SENSOR ISSUE. SUPPLY OF SENSORS WAS BACKLOGGED DUE TO MULTIPLE FAILURES NATIONALLY. THIS IS ALSO EVIDENCED BY THE NUMBER OF ONLINE OWNER COMPLAINTS FOR THE SAME ISSUE MANY STATING LONG DELAYS IN OBTAINING THE PART AND MULTIPLE PART FAILURES. IN MY CASE, AFTER 200 MILES WITH THE NEW SENSOR IF FAILED A SECOND TIME AND I AM AGAIN WAITING FOR PARTS. THE VEHICLE NOW HAS 1700 MILES ON IT SINCE NEW. FOR A NEW VEHICLE THIS IS A TOTALLY UNACCEPTABLE LEVEL OF QUALITY. WHILE I WAS TOLD THE O-RING SEAL FAILS CAUSING OIL TO SATURATE THE SENSOR I PERSONALLY BELIEVE THEY DO NOT KNOW THE FULL REASON FOR THE FAILURES, I.E. POOR SENSOR MANUFACTURING, MATERIALS ISSUE, O-RING ISSUE ETC. IN SPEAKING WITH HYUNDAI CORPORATE PERSONNEL IT BECAME OBVIOUS TO ME THAT THEY ARE TRYING TO AVOID A NATIONAL RECALL BY UNDERSTATING THE SCOPE OF THIS PROBLEM NATIONALLY AND TRYING TO MINIMALIZE THE EXTENT OF THE PROBLEM IN OUR CONVERSATIONS. I SUGGEST AN INVESTIGATION TO DETERMINE THE EXTENT OF THE ISSUE AND SEE IF IT WARRANTS A RECALL. FOR OTHER OWNERS OR POTENTIAL BUYERS, WHILE THIS FAILURE HAS BEEN MY PRIMARY COMPLAINT I HAVE NOTED OTHER ISSUES WITH THE ELECTRONIC WARNING SENSOR INCONSISTENCY AND CABIN ELECTRONICS SYSTEMS WHICH HAVE NOT BEEN RESOLVED. THIS MY FIRST EXPERIENCE WITH OWNING A HYUNDAI AND I AM TERRIBLY DISAPPOINTED. NEXT STEP IS LEMON LAW FILING. *TR
I BOUGHT A 2015 HYUNDAI SONATA ECO ON AUG 30, 2015 AND SHORTLY AFTER PURCHASE LOW TIRE PRESSURE LIGHT AND DISPLAY CAME ON WHILE DRIVING 65 MPH INDICATING THAT THE REAR DRIVE WHEEL WAS AT 9PSI. I PULLED OVER ON THE SIDE OF THE ROAD AND INSPECTED TIRE AND THE TIRE HAD A NORMAL FEEL. DROVE FOR 10 MINS AND TIRE PRESSURE WENT BACK UP TO 35 PSI. ON 11/15 THE BATTERY AND OIL LIGHT CAME ON WHILE THE VEHICLE WAS IN DRIVE AND IMMEDIATELY FOLLOWING THE LIGHTS THE ENGINE SHUT OFF. I SAT IN THE MIDDLE OF THE ROAD AND HAD TO RESTART MY VEHICLE AND THEN DROVE IT TO THE DEALERSHIP. THE DEALERSHIP SAYS, "2691 PERFORMED ALL SYSTEM FAULT CODE SEARCH AND TSB SEARCH. NO FAULT CODES STORED AT THIS TIME AND NO RELATED TSBS FOR CUSTOMER CONCERN AS DESCRIBED." THE DEALERSHIP LATER FOUND A WARNING SAYING TO REPROGRAM THE SENSOR AND REPROGRAMMED THE SENSOR AS THE "FIX". I OPENED A CASE WITH HYUNDAI AND THE RESULTS OF THE CASE WAS TO OBTAIN A PRINT OUT OF THE ERROR CODES (WHICH IS SHOWING NONE) AND TO FILE A COMPLAINT WITH THE BBB IF I WASN'T SATISFIED WITH THE OUTCOME. I AM CONCERNED THAT MY VEHICLE IS NOT PROPERLY RECORDING ISSUES THAT MY VEHICLE ENCOUNTERS LIKE MY ENGINE SHUTTING OFF. THE MECHANICS AT THE DEALERSHIP SAID THAT ERROR CODES ARE THROWN USUALLY WHEN THE SENSORS GO BAD. I AM CONCERNED FOR MY SAFETY IN A VEHICLE THAT HYUNDAI WILL NOT FIX SOLELY BECAUSE THERE ARE NO ERROR CODES ON FILE. I BELIEVE THAT THE ERROR CODES THAT SHOULD BE IN THIS REPORT TO SHOW THE ENGINE SHUTTING OFF ARE NOT BEING RECORDED PROPERLY. HYUNDAI WILL NOT DO ANYTHING TO INVESTIGATE MY ISSUE UNLESS THEY SEE A CODE SO UNTIL A CODE IS THROWN AND RECORDED PROPERLY I AM LEFT WITH A VEHICLE THAT IS UNSAFE AND IS NOT PERFORMING CORRECTLY.
Trend Over Time
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Other Issues
Common problems reported
Quick Summary
The 2015 Hyundai Sonata has 29 ELECTRICAL SYSTEM,ENGINE complaints on file. Review the timeline above for detailed owner experiences.