What is the reason why the automatic transmission CS75 cannot shift gears when just started?

[ColeAnn]

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.

[DelGabriela]

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.

[Lima]

When driving my CS75 automatic transmission, sometimes the gear lever gets stuck after starting. Sharing some experience: usually it's because the brake isn't pressed firmly enough, and the system defaults to locking the gear to prevent misoperation. Another major factor is low battery voltage, especially during cold winter starts when insufficient power causes the computer module to not respond. I've also encountered P-gear engagement issues: if the parking surface is uneven or there's external force interference, the gear can get stuck, requiring multiple brake presses to unlock. During one dealership inspection, the mechanic said faulty brake switch sensors are a common cause, and replacing the part solved it. My approach is to wait patiently for a few seconds after starting, letting all dashboard lights illuminate before shifting; if that doesn't work, check battery health or have someone read the error codes. Avoid forcing the gear to prevent damage.

[NoraDella]

Driving an automatic CS75 for ten years, experiencing difficulty shifting gears upon startup isn't a major issue, but it requires careful handling. The key lies in the gear protection design: the system may refuse to respond if the brake isn't pressed firmly enough; or aging batteries causing voltage to drop below normal levels. I overlooked these issues early on, forcing the gear shift led to premature transmission wear, costing me unnecessary repair expenses. Now, as soon as I get in the car, I press the brake firmly, ensure the car is completely stationary, and only operate after the P gear is unlocked. In cold weather, when the battery drains quickly, I use a charger to maintain stable voltage. For prevention, regular transmission fluid maintenance and brake switch checks can save a lot of hassle. Safety first—if shifting is impossible, pull over and restart.

[LaEva]

I just bought a CS75 automatic transmission and encountered the gear lever not moving after starting, which was quite frustrating. Quick solution: First, check if the brake is fully pressed, as this is key to triggering the system unlock; then make sure the handbrake is completely released, as leaving it on might interfere with the P gear. Battery issues are also common; when the battery is low, the module responds slowly. I used a multimeter to check the voltage—if it's below 12V, it needs charging. Another time when the gear got stuck, I gently shook the steering wheel or repeatedly pressed the brake a few times, and it loosened. Later, I asked a mechanic, and he said a faulty brake light switch is the quickest fix—replacing it costs just a few dozen bucks. Remember not to force it to avoid damaging internal components.

[DelLukas]

When driving the CS75 automatic transmission, if you can't shift gears upon starting, I've researched several main reasons. The gear lock mechanism requires fully pressing the brake pedal to unlock; otherwise, the system prevents misoperation. Poor battery performance can cause the control module to malfunction, especially during cold starts when voltage is notably low. Additionally, P-gear jamming is common—if the parking angle is incorrect or external force is applied, mechanical engagement fails. I once helped a friend diagnose this, and faulty brake sensors were a frequent culprit. A simple test: check if the brake lights are on. It's advisable to regularly maintain and inspect the battery and sensors, and avoid forcing gear shifts to prevent transmission damage. In owner group discussions, upgrading the control software has also proven effective. In short, always troubleshoot minor issues before deep repairs.