NHTSA Complaint #11128303 — 2018 HYUNDAI SONATA

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11128303
Vehicle	2018 HYUNDAI SONATA
Component	ENGINE
Date of Incident	August 1, 2018
Date Filed	September 9, 2018
Mileage	1,100 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	CA

Consumer Description

PURCHASED NEW 2018 SONATA SEL MODEL IN CALIFORNIA. WHILE DRIVING, THE TRANSMISSION STARTS TO HARD DOWNSHIFT WHEN THE BRAKE IS APPLIED. I FOUND OUT THAT THIS HARD DOWNSHIFTING AND JOLTING/THUMPING OF ENGINE AND TRANSMISSION ONLY OCCURS WHEN COMING TO A STOP AT SPEEDS BETWEEN 10 TO 15MPH. IT CAN BE DESCRIBED AS FOLLOWS, AFTER THE BRAKE PEDAL HAS BEEN GENTLY APPLIED AND LIGHTLY RELEASED BUT THEN THE CAR ITSELF APPLIED ITS BRAKE AGAIN. IT TERRIFIES THE DRIVER'S DRIVING CONDITIONS, MENTALLY AND PHYSICALLY.

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