Transmission does not start:
*Low transmission fluid level
* Shift solenoid failure
*Transmission control module (TCM) malfunction
* Wear of transmission parts
Gear slip:
*Low transmission fluid level
* Wear of friction linings
* Torque converter malfunction
*Hydraulic pump malfunction
Gear shift delays:
*Low transmission fluid level
* Shift solenoid malfunction
*Dirty transmission filter
* Wear of transmission parts
Shocks or jerks when shifting gears:
*Low transmission fluid level
* Failure of the switching solenoid
*Transmission Control Module (TCM) malfunction
* Wear of transmission parts
Transmission fluid leak:
* Damage to gaskets or seals
* Wear of pan gaskets
*Damage to transmission housing
Increased fuel consumption:
* Gear slip
* Delays when shifting gears
*Hydraulic pump malfunction
Other faults:
* Limp-home mode: The transmission goes into limp mode, limiting gear operation.
* Abnormal noise or vibration: May indicate worn transmission parts or bad bearings.
*Park Shift Problems: May be caused by a faulty shift lock or shift cable.
* Cold Starting Difficulty: May be due to thickened transmission fluid or a faulty hydraulic pump.