2011 Hyundai Sonata Hybrid Driver assistance Problems

TL* THE CONTACT OWNS A 2011 HYUNDAI SONATA HYBRID. ON SEVERAL OCCASIONS, WHILE DRIVING 40-50 MPH, AN AUDIBLE CHIME WAS HEARD AND THE CHECK BRAKE WARNING INDICATOR ILLUMINATED. ONCE THE CHIME STOPPED, THE ACCELERATOR AND BRAKE PEDALS WERE RENDERED INOPERABLE. THE CONTACT STATED THAT THE VEHICLE WAS TURNED OFF AND RESTARTED, BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO MALCOLM CUNNINGHAM HYUNDAI (4355 STONE MOUNTAIN HWY, LILBURN, GA 30047, (770) 972-1222) WHERE IT WAS DIAGNOSED THAT THE WHEEL SPEED SENSOR NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 123,000.

NHTSA ID

11270844

Incident

Oct 24, 2019

Mileage

123,000 mi

CHECK BRAKE WARNING DISPLAY 2011 HYUNDAI SONATA HYBRID. WHEN DRIVING THE CHECK BRAKE SIGNAL COMES ON AND SHUTS DOWN THE CAR AND RENDER IT DRIVELESS UNTIL I SHUT OFF THE ENGINE AND RESTART IT .WE CHANG NEW OWN 12 V BATTERY OEM PARTS . STILL HAVE THE PROBLEM CHECK BRAKE SIGNAL COME ON .

NHTSA ID

11221385

Incident

Jun 14, 2019

Mileage

77,940 mi

TL* THE CONTACT OWNS A 2011 HYUNDAI SONATA HYBRID. WHILE DRIVING APPROXIMATELY 1 MPH, THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE ACCELERATED INDEPENDENTLY. THE VEHICLE STRUCK THE TIRE OF A HEAVY TRUCK, BOUNCED OFF THE TIRE, AND STRUCK A PARKED VEHICLE. THE CONTACT STATED THAT THE BRAKES WERE INOPERABLE. PRIOR TO THE CRASH, THE VEHICLE SWITCHED FROM HYBRID PROPULSION TO GAS PROPULSION. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THERE WAS NO INJURY SUSTAINED. THE VEHICLE WAS TOWED TO AN INDEPENDENT REPAIR FACILITY. THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ID

11174667

Incident

Feb 4, 2019

MY VEHICLE "CHECK CHARGING SYSTEM" WARNING CAME UPON THE START UP OF THE HYBRID IN THE MORNING 12/31/2018, GOING TO WORK. THIS WAS AN ISSUE ON A HEAVY PRECIPITOUS DAY IN PAST. HOWEVER THERE WAS NOT HEAVY RAIN, I TURNED THE VEHICLE BACK OFF. IT TURNED ON WITHOUT THE WARNING WHICH 1ST APPEARED IN FRONT AREA AND IS AUDIBLE. IT STARTED AS I APPROACHED A STOP SIGN. I LIVE ABOUT 6 MINUTES AWAY FROM WORK. THE BATTERY LIFE IS VISIBLE AND IT WAS NOT CHANGED FROM MID POINT WHICH HAS ALWAYS BEEN SAME. THE TANK HAD GAS, NO ISSUE, AND I DROVE IT TO WORK. I ASSUMED WITH THE CAR TURNED OFF FOR THE 6HOUR SHIFT I HAD, THAT IT WOULD POSSIBLY BE RELIEVED. I STARTED THE CAR TO NOW DRIVE TO THE STORE FOR QUICK GROCERY ESSENTIALS. WITHIN A 15 MIN TIME FRAME FROM WORK, STORE QUICK SHOPPING THERE, AND HOME AGAIN. THE WARNING CAME BACK ON. AS I BRAKED, OR CAME TO A STOP FOR LIGHTS THE WARNING WOULD STOP. AS I PUSHED ON GAS PEDAL IT WOULD START. AS I WAS APPROACHING AN INTERSECTION WITH TRAFFIC LIGHTS, I PREPARED TO STOP BUT AS I GOT CLOSER THE CAR WOULD NOT STOP ANYMORE THAN IT HAD (WHICH WAS SIGNIFICANT) BUT NOT STOPPING, AS I NOTICED THE DISTANCE, MY FOOT ON THE BRAKE ALL THE WAY I HEARD THE VEHICLE (CLOSING SONG) WHICH IS SUPPOSED TO BE HEARD WHEN YOU TURN THE VEHICLE OFF. I LOOKED AT THE DASH IN FRONT OF ME WHICH WENT BLANK ALL ACROSS THE BOARD AND I BRACED FOR IMPACT. MY VEHICLE CAME TO A STOP BECAUSE THE COLLISION OCCURRED WITH THIS MALFUNCTION AND MY CAR HIT THE CAR IN FRONT OF ME. PHYSICALLY WE ARE OK. I AM STILL PAYING FOR THIS VEHICLE AND IT IS POWERLESS BY THE CURB AT MY RESIDENCE UNTIL I CAN AFFORD TO HAVE A TOW TRUCK PICK IT UP. THE DEALERSHIP SAID NO WARRANTY, NO ASSISTANCE BY THEM. I HAVE A CLAIM WITH HYUNDAI WHICH IS SLOW. YOU TUBE HAS SO MANY VEHICLES FROM 2011 AND RECENT MODELS THAT ARE REPORTING SAME WARNING ISSUES. I HAVE A RECORDING OF IT FROM THAT DAY.

NHTSA ID

11174646

Incident

Dec 31, 2018

Mileage

130,000 mi

THIS VEHICLE HYUNDAI SONATA HYBRID HAS ALL THE ISSUES THAT THE REGULAR HYUNDAI SONATA RECALLS HAVE ENGINE WAS REBUILT DUE TO METAL SHAVINGS IN THE OIL PAN, ALSO THIS HYBRID ACCELERATES AT TIMES WHEN IT DOESNT RUN ON BATTERY (ENGINE KICKS IN) TOO MANY ISSUES WITH THIS HYUNDAI SONATA HYBRID!!! IN MOTION ON HIGHWAY/ CITY STREETS

NHTSA ID

10994075

Incident

Jun 16, 2016

Mileage

82,000 mi

CHECK CHARGING SYSTEM AND CHECK BRAKE LIGHT CAME ON AT 76000 MILES DRIVEING 65 MPH IN THE HIGHWAY AFTER 3 HOURS. COLLANT DID NOT READ HOT, BATTERY READ DEAD. VEHICHLE QUICKLY DECELLERATED AND I PULLED OVER. RADIATOR BLEW NECK OFF AND SEVERAL COMPONENTS OF THE COOLOING SYSTEM AND HOSES WERE MELTED THERE IS A STRONG SMELL OF FLUDGE/FULE BASED RESIDUE/COMBUSTION IN COOLING SYSTEM THAT BLEW OFF NECK. BATTERY SO WEEK I COULD NOT USE THE KEY TO OPEN A DOOR OR THE TRUNK, OR MOVE SEATS. COOLANT HAD JUST BEEN TOPPED OF AND SYSTEM WAS FLUSHED WITHIN 10,000 MILES. MECHANIC AT KIA DEALERSHIP DIAGNOSED TGAT TGE GEAD GASKET/CYLINDER HEAD LEADED INTO THE COOLING SYSTEM CAUSING THE NECK TO BLOW OFF THE RADIATOR AND MELTING SEVERAL SENSORS AND COMPONENTS OF THE COOLING SYSTEM THAT WOULD NOT HAVE MELTED OR BLOWN FROM FUMES OF LOW COOLANT ALONE. OIL LEVELS AND QUALITY WAS GOOD. I PHOTOGRAPHED THE DASH LIGHTS AT BREAKDOWN AND THE COOLANT LEVELS DID NOT READ HOT. CHECK CHARGING SYSTEM AND CHECK BRAKE LIGHTS CAME ON. CHECK BRAKE LIGHTS CHECK ENGINE LIGHTS HAD BEEN A PROBLEM BEFORE. DEALERSHIP FOR HYUNDAI (COGGINS HYUNDAI IN DELAND) SAYS THEY THINK A LACK OF COOLANT CAUSED ISSUE, BUT I KNOW I HAD COOLANT IN THE CAR - THEY JUST WANT TO NOT BE RESPONSIBLE FOR WARRANTY REPAIR,AS I AM THE FIRST OWNER AND HAVE DONE PROPER MAINTAINANCE. I HAVE SEEN MANY OTHER PEOPLE COMPLAIN OF SIMILAR ISSUES FROM WHEN THE CAR IS NEW (CHECK CHARGINS SYSTEM LESS THAN 3000 MILES) AND THE CAR BLOWING UP/CATCHING FIRE, ETC. PERHAPS THE REASON MINE DID NOT CATCH FIRE WAS ALL THE COOLANT THAT WAS RELEASED. ONE CAR OWNER INSISTS THAT ALL HYUNDAIS WILL DO THIS BETWEEN 70,000 AND 100,000 MILES. SOMETHING BIG IS GOING ON WITH THESE CARS - MINE HAS HAD CONTINUAL PROBLEMS AND IT SHOULD BE REPLACED AT HUYNDAI'S COST. THIS SHOULD BE STUDIED FURTHER! SAFTY HAZARD! READ HYUNDAI FORUM AND THE OTHER COMPLAINTS!

NHTSA ID

10984281

Incident

Apr 11, 2017

Mileage

76,919 mi

CHARGING SYSTEM MALFUNCTIONED, SENSORS MELTED IN VALVE TRANE, RADIATOR ELBOW AND FILL NECK BLEW OFF, COMPLETE ENGINE FAILURE AND BATTERY FAILURE. I HAVE HAD A PROBLEM WITH THE "CHECK BRAKE" LIGHT AND AN ALARM GOING OFF. HOWEVER, WHEN I STOPPED DRIVING AND HAD IT TOWED TO THE DEALERSHIP THEY COULD FIND NOTHING. PRIOR TO THIS INCIDENT, I TOOK A PHOTO OF MY DASH, I HAD 76,499 MILES AND THE COOLANT METER DID NOT READ HOT. I HAD HAD THE COOLANT SYSTEM FLUSHED AT 65,000 MILES, AND I HAD ALL OIL AND FLUIDS CHECKED AGAIN AFTER THIS INCIDENT. THE BREAKDOWN: THREE HOURS INTO A ROADTRIP, THE A/C BEGAN BLOWING WARM, SIMULTANEOUSLY - THE "THE CHECK BRAKE" LIGHT AND ALARM CAME ON, AND THE "CHECK CHARGING SYSTEM" LIGHT CAME ON. I LOST POWER TO ACCELERATE (OR BRAKE WELL) AND IMMEDIATELY PULLED OVER AND TOOK A PHOTO OF MY DASH WARNINGS (76919 MILES). THE HEAT SENSOR WAS IN THE "COOL" HALF, THE BATTERY GAGE SHOWED NO POWER. BATTERY SO LOW KEY WOULD NOT START CAR. I HAD THE CAR TOWED. "TECH FOUND THAT ELBOW AND RADIATOR HAVE HOLES IN THEM VEHICLE OVERHEATED CAUSING ENGINE TO BLOW." TIFFANY RICHARDSON SAID "TECH BELIEVE VEHICLE WAS DRIVEN WITH LOW COOLANT LEVEL CAUSING VEHICLE TO RUN HOT MELTING SENSORS IN THE VALVE TRAIN AND THE PIPES TO FAIL." THE TECH IS WRONG, THE COOLANT SYSTEM WAS INSPECTED AND FLUSHED AT 65,000 MILES, AND WAS NOT DUE FOR ANOTHER INSPECTION. I HAD HAD COOLANT LEVELS CHECKED LESS THAN 1000 MILES AGO, AND THE HEATING SENSOR ON DASH DID NOT READ HOT, AT THE POINT OF BREAKDOWN OR AFTER A ROAD TRIP 500 MILES AGO. OTHERS HAD THE PROBLEM AT 3000 MILES! IT'S THE HPCU. THE POWER FOR BOTH ELECTRIC MOTORS IS ROUTED THROUGH HPCU. THE INVERTERS ALLOW THE A/C MOTORS TO BE DRIVEN BY D/C BATTERIES. THIS CAUSED "CHECK CHARGING SYSTEM" ERROR. THIS IS $15,000.00 AND I OWE $4000 ON THE CAR - 100,000 WARRANTY HAS DENIED IT & I AM ORIGINAL OWNER. AIRBAG TO

NHTSA ID

10983521

Incident

Apr 11, 2017

Mileage

76,919 mi

CHARGING SYSTEM MALFUNCTIONED, SENSORS MELTED IN VALVE TRANE, RADIATOR ELBOW AND FILL NECK BLEW OFF, COMPLETE ENGINE FAILURE AND BATTERY FAILURE. I HAVE HAD A PROBLEM WITH THE "CHECK BRAKE" LIGHT AND AN ALARM GOING OFF. HOWEVER, WHEN I STOPPED DRIVING AND HAD IT TOWED TO THE DEALERSHIP THEY COULD FIND NOTHING. PRIOR TO THIS INCIDENT, I TOOK A PHOTO OF MY DASH, I HAD 76,499 MILES AND THE COOLANT METER DID NOT READ HOT. I HAD HAD THE COOLANT SYSTEM FLUSHED AT 65,000 MILES, AND I HAD ALL OIL AND FLUIDS CHECKED AGAIN AFTER THIS INCIDENT. THE BREAKDOWN: THREE HOURS INTO A ROADTRIP, THE A/C BEGAN BLOWING WARM, SIMULTANEOUSLY - THE "THE CHECK BRAKE" LIGHT AND ALARM CAME ON, AND THE "CHECK CHARGING SYSTEM" LIGHT CAME ON. I LOST POWER TO ACCELERATE (OR BRAKE WELL) AND IMMEDIATELY PULLED OVER AND TOOK A PHOTO OF MY DASH WARNINGS (76919 MILES). THE HEAT SENSOR WAS IN THE "COOL" HALF, THE BATTERY GAGE SHOWED NO POWER. BATTERY SO LOW KEY WOULD NOT START CAR. I HAD THE CAR TOWED. "TECH FOUND THAT ELBOW AND RADIATOR HAVE HOLES IN THEM VEHICLE OVERHEATED CAUSING ENGINE TO BLOW." TIFFANY RICHARDSON SAID "TECH BELIEVE VEHICLE WAS DRIVEN WITH LOW COOLANT LEVEL CAUSING VEHICLE TO RUN HOT MELTING SENSORS IN THE VALVE TRAIN AND THE PIPES TO FAIL." THE TECH IS WRONG, THE COOLANT SYSTEM WAS INSPECTED AND FLUSHED AT 65,000 MILES, AND WAS NOT DUE FOR ANOTHER INSPECTION. I HAD HAD COOLANT LEVELS CHECKED LESS THAN 1000 MILES AGO, AND THE HEATING SENSOR ON DASH DID NOT READ HOT, AT THE POINT OF BREAKDOWN OR AFTER A ROAD TRIP 500 MILES AGO. OTHERS HAD THE PROBLEM AT 3000 MILES! IT'S THE HPCU. THE POWER FOR BOTH ELECTRIC MOTORS IS ROUTED THROUGH HPCU. THE INVERTERS ALLOW THE A/C MOTORS TO BE DRIVEN BY D/C BATTERIES. THIS CAUSED THE "CHECK CHARGING SYSTEM" ERROR. $15,000.00 FIX. I OWE $4000. 100,000 WARRANTY HAS DENIED IT & I AM ORIGINAL OWNER. HPCU RECALLED B4? .

NHTSA ID

10983518

Incident

Apr 11, 2017

Mileage

76,919 mi

CHARGING SYSTEM MALFUNCTIONED, SENSORS MELTED IN VALVE TRANE, RADIATOR ELBOW AND FILL NECK BLEW OFF, COMPLETE ENGINE FAILURE AND BATTERY FAILURE. I HAVE HAD A PROBLEM WITH THE "CHECK BRAKE" LIGHT AND AN ALARM GOING OFF. HOWEVER, WHEN I STOPPED DRIVING AND HAD IT TOWED TO THE DEALERSHIP THEY COULD FIND NOTHING. PRIOR TO THIS INCIDENT, I TOOK A PHOTO OF MY DASH, I HAD 76,499 MILES AND THE COOLANT METER DID NOT READ HOT. I HAD HAD THE COOLANT SYSTEM FLUSHED AT 65,000 MILES, AND I HAD ALL OIL AND FLUIDS CHECKED AGAIN AFTER THIS INCIDENT. THE BREAKDOWN: THREE HOURS INTO A ROADTRIP, THE A/C BEGAN BLOWING WARM, SIMULTANEOUSLY - THE "THE CHECK BRAKE" LIGHT AND ALARM CAME ON, AND THE "CHECK CHARGING SYSTEM" LIGHT CAME ON. I LOST POWER TO ACCELERATE (OR BRAKE WELL) AND IMMEDIATELY PULLED OVER AND TOOK A PHOTO OF MY DASH WARNINGS (76919 MILES). THE HEAT SENSOR WAS IN THE "COOL" HALF, THE BATTERY GAGE SHOWED NO POWER. BATTERY SO LOW KEY WOULD NOT START CAR. I HAD THE CAR TOWED. "TECH FOUND THAT ELBOW AND RADIATOR HAVE HOLES IN THEM VEHICLE OVERHEATED CAUSING ENGINE TO BLOW." TIFFANY RICHARDSON SAID "TECH BELIEVE VEHICLE WAS DRIVEN WITH LOW COOLANT LEVEL CAUSING VEHICLE TO RUN HOT MELTING SENSORS IN THE VALVE TRAIN AND THE PIPES TO FAIL." THE TECH IS WRONG, THE COOLANT SYSTEM WAS INSPECTED AND FLUSHED AT 65,000 MILES, AND WAS NOT DUE FOR ANOTHER INSPECTION. I HAD HAD COOLANT LEVELS CHECKED LESS THAN 1000 MILES AGO, AND THE HEATING SENSOR ON DASH DID NOT READ HOT, AT THE POINT OF BREAKDOWN OR AFTER A ROAD TRIP 500 MILES AGO. OTHERS HAD THE PROBLEM AT 3000 MILES! IT'S THE HPCU. THE POWER FOR BOTH ELECTRIC MOTORS IS ROUTED THROUGH HPCU. THE INVERTERS ALLOW THE A/C MOTORS TO BE DRIVEN BY D/C BATTERIES. THIS CAUSED THE "CHECK CHARGING SYSTEM" ERROR. THIS IS $15,000.00 AND I OWE $4000 ON THE CAR - 100,000 WARRANTY HAS DENIED IT & I AM ORIGINAL OWNER.

NHTSA ID

10983503

Incident

Apr 3, 2017

Mileage

76,000 mi

THE BACK LIGHT NOT WORKING NORMAL FRONT NIGHT LIGHT NOT WORKING

NHTSA ID

10821317

Incident

Dec 22, 2015

Mileage

27,600 mi

I HAVE HAD THIS 2011 HYUNDAI SONATA HYBRID IN THE SHOP SINCE I PURCHASED IT IN 2011 NEW THE CAR HAS SERIOUS CAR HESITATION AND GAS MILEAGE IS 19 TO 30 PER GALLON. I HAVE HAD NUMEROUS PROBLEMS WITH OIL LEAKS AND ENDED UP WITH A BLOWN MOTOR AT 60,000 MILES. I ALSO HAVE NUMEROUS SERVICE ISSUES WITH THE BLOWER AC/ HEATER NOT WORKING AS WELL. THE CAR IS A LEMON AFTER 30 VISITS TO DEALERSHIP FOR REPEATED PROBLEMS. I HAVE TAKEN CAR TO 4 DIFFERENT DEALERSHIPS TO HAVE A NEW SET OF EYES FIX THE PROBLEMS AND STUCK WITH A REBUILT MOTOR IN MAY 2015. CAR IS BACK IN THE SHOP FOR HESITATE AND ECS PROBLEMS AS OF JUNE 2015. NEED HELP.

NHTSA ID

10724008

Incident

May 31, 2012

Mileage

512,011 mi