Hyundai Santa Fe transmission issues with severe bucking when shifting from 1st to 2nd gear on Hyundai Santa Fe

Some Hyundai Santa Fe owners report experiencing severe bucking when shifting from 1st to 2nd gear, which may indicate transmission issues. These owners have noted intermittent hard upshifts, where the transmission seems to slip briefly before jolting the vehicle, occasionally even spinning the rear wheels. Some have found that shutting off the car and restarting it can temporarily alleviate the hard shifting problem. Others have experienced jerking or lunging during the transition between these gears, though the issue may not occur consistently. A potential solution mentioned includes a computer update from Hyundai that addresses the hard shift. Additionally, delays in shifting could signal low transmission fluid levels, a failing shift solenoid, or worn-out transmission oil filters. In some instances, hard shifts have been linked to cold starts, particularly after backing out of a garage. Given these concerns, it is advisable for owners facing these symptoms to consult a qualified mechanic or Hyundai service center for proper diagnosis and resolution.