Noises and vibrations:
* Humming or whining, especially when cornering or accelerating
* Vibrations transmitted through the steering wheel or floor mat
Wheel slip:
* Wheel slipping when starting or accelerating
* Wheel slip when entering a turn
Difficulty shifting gears:
* Slow or difficult gear shifting
* Knocks or jolts when shifting gears
Fluid leaks:
* Transmission fluid leaks from the differential or transmission housing
Suspicious smell:
* Burnt oil or rubber smell indicating excessive heat or wear
Other signs:
* Increased fuel consumption
* Reduced traction characteristics of the vehicle
* Grinding or clicking noise when turning
Note: Some of these signs may indicate other automatic transmission problems. Professional diagnostics are required to accurately determine the problem.