NHTSA Complaint #10787295 — 2012 HYUNDAI SONATA ELECTRICAL SYSTEM

Complaint Details

ODI Number	10787295
Vehicle	2012 HYUNDAI SONATA
Component	ELECTRICAL SYSTEM
Date of Incident	January 1, 2015
Date Filed	October 30, 2015
Mileage	12,000 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	WI

Consumer Description

DURING COLD WEATHER, THE 2.0 TURBO SONATA ENGINE WILL CUT POWER TO THE CAR AND GO INTO A "LIMP" MODE IF AN OVER BOOST CODE (USUALLY P0605 & P2110 ), IS TRIGGERED. THIS CAUSES AN UNSAFE SITUATION AS THERE IS VERY LITTLE POWER AVAILABLE TO GET OUT OF THE WAY OR CAN CAUSE A REAR VEHICLE CRASH. THERE HAVE BEEN A COUPLE TIMES WHERE THIS HAS HAPPENED ON 0 DEGREE DAYS OR EVEN AT 30 DEGREES. THIS WILL HAPPEN AT ANY SPEED IF THE BOOST PRESSURE IS EXCEEDED AND MAKES FOR A VERY DANGEROUS SITUATION. THE ECU SHOULD NOT BE CUTTING POWER OR FUEL, IT SHOULD BE REDUCING THE BOOST TO COMPENSATE FOR TEMPERATURE. THE ONLY WAY TO RESTORE THE POWER TO THE ENGINE, IS TO SHUT THE CAR OFF AND RESTART.....CODES WILL STILL BE ACTIVE BUT THE POWER WILL RESTORE ITSELF.

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