What's the reason for an automatic transmission car not being able to shift gears?
2 Answers
Reasons why an automatic transmission car cannot shift gears: 1. There may be a malfunction inside the gear shift assembly causing the inability to shift gears; 2. There may be a malfunction in the internal control module of the transmission; 3. There may be a malfunction in the gear position switch of the transmission. Automatic transmission cars generally use an automatic transmission to regulate the speed. While driving, the control system of the automatic transmission automatically selects the appropriate gear based on the engine's speed and load, replacing the driver's subjective judgment of timing and gear shifting operation. Generally, automatic transmission cars have five gear positions: P, R, N, D, and S, where P stands for Park, R for Reverse, N for Neutral, D for Drive, and S for Sport mode.
Recently, my car has been acting up like this too – when I shift to D gear, there's no response, the car doesn't move, and it's really unsettling. There could be several reasons for this. For instance, if the brake isn't pressed firmly enough – automatic transmissions require the brake to be engaged for gear shifting. Sometimes, it's a faulty brake pedal switch that prevents the signal from being transmitted. Another possibility is battery issues; insufficient power can affect the computer system, causing the transmission to be unresponsive. Dirty or insufficient transmission fluid can also lead to inadequate pressure, causing the gears to stick. Additionally, sensor failures, such as problems with the gear position sensor or speed sensor, can cause the computer to misinterpret commands. As a novice, I've tried restarting the car a few times, and it occasionally works, but it's not a long-term solution. Quickly check if the brake lights are functioning properly. If they're not, try replacing the switch. For safety's sake, don't tinker with it on the road – drive to a repair shop to have the fluids and electronic components checked to avoid more significant damage.
