Common signs of automatic transmission failure:
* Gear Slip: The transmission slips when upshifting, causing loss of power or engine revs without gaining speed.
*Rough or bumpy shifts: Gear shifts are rough or bumpy, which can feel like a jerk or jerk.
* Shift delay: The transmission shifts slowly between gears or delays when shifting.
* No Movement: The vehicle does not move forward or backward even though the gear selector is in the Drive or Reverse position.
* Noises or vibrations: There are unusual noises, hums, or vibrations coming from the transmission.
* Fluid Leaks: There are red or pink transmission fluid leaks under the vehicle.
* Burning smell: There is a smell of burning or overheated oil coming from the transmission.
*Check Engine Light Illuminates: The Check Engine light or other trouble indicators illuminate on the instrument panel.
* Diagnostic error: When connecting a diagnostic scanner, fault codes are displayed indicating problems with the transmission.
Additional signs indicating a serious problem:
* Locked in one gear: The vehicle may remain locked in one gear and not shift between gears.
*Discoloration of transmission fluid: Transmission fluid becomes cloudy, dark, or contains metal filings.
* Damage to differential or axle: Noise, vibration or damage may occur when driving or turning.
* Steering wheel cannot be unlocked: The gear selector cannot be moved to the Park position and the steering wheel remains locked.