Frequent signs of automatic transmission failure on the Kia Rio 3:
Gear slippage
* The transmission may not upshift or downshift smoothly.
* You feel that the car is losing power while accelerating.
Delays when shifting gears
* The transmission takes a long time to shift between gears.
*You hear clicking or jolting noises when changing gears.
Hard gear shifting
* The transmission shifts to a higher or lower gear with a strong shock.
* You hear a loud bang when changing gears.
Overheat
*Transmission fluid temperature is too high.
*You see an overheat warning light on your dashboard.
* You smell something burning.
Fluid leaks
* You see puddles of transmission fluid under the car.
* Transmission fluid level is low.
Other symptoms
* Strange noises coming from the transmission (such as whining, humming, or knocking).
* Vehicle vibration when driving.
* Shift cable problems (such as sticking or difficulty shifting).
Possible causes of gearbox kicking on Kia Rio 3:
*Low transmission fluid level
* Contaminated transmission fluid
* Faulty torque converter
* Worn friction discs
* Faulty shift valve
* Electrical problems (such as faulty sensors or solenoids)