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
2000
ELECTRICAL SYSTEM
TRANSMISSION INPUT SPEED SENSOR FAILURE, THIS PROBLEM IS SHOCKINGLY ALL OVER THE INTERNET, THE SENSOR FAILS AND IF YOUR ON THE HIGHWAY, YOU SUDDENLY SLAM DOWN IN SPEED TO ALMOST HALF YOUR PREVIOUS SPEED WITH A LOUD BANG AS THE TRANSAXLE JUMPS FROM 4TH GEAR TO 2ND GEAR AND THE ENGINE REDLINES. DUE TO THE FAILED SENSOR TELLING THE TRANSAXLE TO DOWNSHIFT IMPROPERLY. A INEXPERIENCED OR LESS CAPABLE DRIVER MAY HAVE BEEN THROWN OUT OF CONTROL FROM THE SHEER FORCE OF THE IMPACT WHEN THE TRANSAXLE MIS-SHIFTS FROM 4TH TO 2ND WHEN THE SENSOR MALFUNCTIONS. *TR
2012
STEERING
THE VEHICLE WANDERS AT HIGHWAY SPEEDS. IT IS NOT SUITABLE FOR HIGHWAY DRIVING AS IT IS VERY FATIGUING TO DRIVE ANY DISTANCE ON THE HIGHWAY. I AM CONSTANTLY FIGHTING WITH THE STEERING TO STAY IN MY LANE. MOST OF MY DRIVING IS ON THE HIGHWAY AND THIS PROBLEM IS VERY MUCH A SAFETY CONCERN. *TR