What is the reason why the automatic transmission CS75 cannot shift gears when just started?
2 Answers
Automatic transmission CS75 cannot shift gears when just started due to internal failure of the gear shift assembly; failure of the control module inside the transmission; failure of the gear position switch in the transmission. Here is an introduction to each gear position of the automatic transmission: P gear: Abbreviation for English parking, parking gear. After shifting into P gear, the vehicle's transmission will be locked. R gear: Abbreviation for English Reverse, reverse gear. Used when reversing, shift into R gear, and the car can move backward. N gear: Abbreviation for English neutral, neutral gear. D gear: Abbreviation for English drive, drive gear. D gear is the most commonly used gear position, shift into D gear, step on the accelerator, and the car will move forward. S gear: Abbreviation for English sport, sport gear. Many models call it sport mode. In this mode, the car's power will increase, and fuel consumption will also increase.
That day I encountered the CS75 automatic transmission not shifting after startup, which was quite frustrating. Mainly, it's the gear lock protection mechanism at play: if the brake pedal isn't fully depressed during startup, the system prevents accidental gear shifting to avoid vehicle movement. Another factor is low battery power; during cold starts, insufficient battery voltage may cause the transmission control module to respond sluggishly or fail. Also, check if the P gear is stuck—if the vehicle isn't completely stopped or the steering wheel lock isn't released, it can lead to mechanical jamming. My suggestion is to firmly press the brake before starting; if that doesn’t work, wait about ten seconds for the system to initialize, or gently shake the steering wheel to try unlocking it. Battery aging is also common—regularly testing the voltage to ensure it's above 12V can prevent this issue. Safety reminder: forcing the gear can damage the transmission; it's better to turn off the engine and restart before trying again.