The automatic transmission is blocked for the following reasons:
Transmission problems:
* Worn clutch pack
* Torque converter malfunction
*Transmission fluid leak
* Damage to mechanical components such as shafts or gears
Electrical or electronic problems:
* Faulty transmission solenoids or sensors
* Broken electrical wiring
* Malfunction of the electronic control unit (ECU) of the transmission
Incorrect operation:
* Towing heavy loads without turning on towing mode
* Aggressive driving, sudden starts and stops
*Holds transmission in lower gears for long periods of time
Other reasons:
*Low transmission fluid level
* Contaminated transmission fluid
* Malfunction in the transmission cooling system
* Wear of transmission parts due to normal wear and tear
Consequences of blocking the automatic transmission:
* Difficulty shifting gears
*Transmission slipping
* Vibrations and noise
* Deterioration in fuel economy
* Increased acceleration time
* Complete transmission failure