Possible reasons for automatic transmission delay with gear shifting:
Mechanical problems:
*Low transmission fluid level
* Clutch slippage
* Worn transmission parts (solenoids, torque converter)
* Clogged transmission filter
Electronics problems:
* Faulty speed sensor
*Faulty throttle position sensor
* Problems with wiring or connectors
Software problems:
* Outdated transmission software
*Software glitch
Other possible reasons:
* Worn out engine or turbocharger
* Severe operating conditions (towing, off-road driving)
*Transmission overheating
Possible solutions:
* Check the transmission fluid level and add it if necessary.
* Replace worn transmission parts.
* Clean the transmission filter.
* Check the speed and throttle position sensors and replace them if necessary.
* Carry out diagnostics of electrical wiring and connectors.
* Update your transmission software.
* Check the engine and turbocharger for wear.
* Avoid harsh operating conditions.
*Service the transmission regularly.
Note: For accurate diagnosis and repair of the automatic transmission, it is recommended to contact a car service center.