Possible causes of automatic transmission failure in a Chevrolet Cruze:
Mechanical problems:
* Wear of friction discs
* Damage to gears or shafts
* Torque converter malfunction
*Differential problems
*Transmission fluid leak
Electrical problems:
*Speed sensor malfunction
* Damage to wiring
* Transmission Control Module (TCM) malfunction
Hydraulic problems:
* Clogged or contaminated transmission fluid
* Faulty pump
*Leak in hydraulic system
Human factor:
* Incorrect operation (for example, excessive load on the gearbox)
* Lack of proper maintenance (irregular replacement of transmission fluid and filter)
General symptoms of automatic transmission failure:
* Slipping or delay when shifting gears
* Rough or abrupt shifting
*Transmission fluid leak
* Extraneous noise or vibration
*Transmission fault indicator lights up
Diagnostics and repair:
* Diagnostics using trouble code scanner
*Visual inspection and mechanical inspection
* Checking the level and condition of the transmission fluid
* Repair or replace damaged parts
* TCM reprogramming (if necessary)
Prevention of automatic transmission breakdowns:
* Regular replacement of transmission fluid and filter
* Observe correct operation (avoid sudden starts and stops, towing heavy loads)
* Use transmission fluid recommended by the manufacturer
* Diagnostics and maintenance in authorized service centers