What to Do When the Transmission Warning Light Comes On?

1 Answers
LeDaniela
07/29/25 12:41pm
When the transmission warning light illuminates, it indicates there is an internal fault in the transmission system. The next step is to diagnose the specific issue using trouble codes and proceed with appropriate repairs. Common causes for the transmission warning light activation include: failure in the control module, malfunctioning shift solenoids, gear wear inside the transmission, or damaged friction plates. Transmissions are categorized into manual and automatic types. Manual transmissions primarily consist of gears and shafts, achieving speed and torque variation through different gear combinations. Automatic transmissions are composed of a torque converter, planetary gears, a hydraulic torque variation system, and a hydraulic control system, utilizing hydraulic power transmission and gear combinations to achieve speed and torque changes.
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