Fuel Injection Type: Stoichiometric gasoline direct injection (SGDI)
Make: HYUNDAI
Manufacturer: HYUNDAI-KIA AMERICA TECHNICAL CENTER INC (HATCI)
Manufacturer Id: 1034
Model: Sonata
Model Year: 2012
Plant Company Name: Hyundai Motor Manufacturing Alabama
Plant Country: United States (USA)
Plant State: Alabama
Seat Belts All: Manual
Series: Middle level
Series2: YFA
TPMS: Direct
Turbo: Yes
Valve Train Design: Dual Overhead Cam (DOHC)
Vehicle Type: PASSENGER CAR
Model year
COMPONENT
Complaint
2011
ELECTRICAL SYSTEM
WHEN DRIVING TO WORK I HAD JUST GOTTEN ON HIGHWAY WHEN I FELT A THUD AND TRANSMISSION JERKED. I FIRST THOUGHT THAT I HIT SOMETHING ON THE ROAD BUT HADN'T. I NOTICED MY SPEED WAS REDUCED TO 55MPH AND THE RPM,S INCREASED TO 3500 FROM THE PREVIOUS 2000 RPM.I HAD HAD THIS PROBLEM TWICE NOW AND READ ONLINE THAT BY PULLING OVER TO A STOP AND SHUT OFF THE IGNITION WILL RESET THE TRANSMISSION ELECTRICAL CONTROLS.I WITHOUT DOING THIS THE TRANS. WILL REMAIN IN WHATS CALLED LIMP GEAR(4TH) AND WILL REMAIN IN THAT GEAR AT ALL SPEEDS UNTILL YOU SHUT OFF THE IGNITION AND IT WILL THEN RESET HOPEFULLY.I AM SCHEDULED TO HAVE THE DEALER LOOK INTO THIS AND HOPEFULLY CAN COME UP WITH A FIX, AS THIS IS THE 2ND TIME I WILL HAVE THE VEHICLE IN FOR THE SAME PROBLEM.THE ONLY BAD THING ABOUT DIAGONALIZING THIS PROBLEM HAS BEEN THE FACT THAT NO CHECK ENGINE CODE LIGHT IS ON THE DASH AND I WAS TOLD THE FIRST TIME THAT WITHOUT THIS AND THE FACT THAT BY DRIVING IT AND DUPLICATE THE OCCURRENCE THEY DON'T KNOW WHAT TO FIX.
2012
VEHICLE SPEED CONTROL
CRUISE CONTROL WOULD NOT DISENGAGE BY HITTING CANCEL OR TURNING IT OFF. IT WOULD ONLY DISENGAGE BY DEPRESSING BRAKE PEDAL. I HAVE BEEN HAVING PROBLEMS ENGAGING CRUISE CONTROL FOR ABOUT A WEEK. THE BRAKE INTERLOCK SWITCH WAS ALREADY REPLACED ONCE, IF IT HAD FAILED AGAIN THE ONLY OPTION WOULD HAVE BEEN TO PUT THE CAR IN NEUTRAL AND SHUT IT OFF. *TR