jose ... 1/28/2013
2010 Hyundai Sonata GLS 4 Cyl 2.4L
Transmissions & Drivetrains
Why does my cars transmission shifts down hard when coming to a stop?
It seems to happen when the car is cold, after you have driven it for awhile and it reaches operational warm temperature, It down shifts normally.
First step, check the transmission fluid level and refill as required.