What is the reason for the car not moving when in D gear?
4 Answers
The reason the car does not move when in D gear is that the accelerator needs to be pressed. Reasons for needing to press the accelerator: Uneven road surface, obstacles or potholes blocking the tires. The handbrake is not released or the autohold function is activated. Rusty brake discs causing high resistance. Issues with the transmission. Solutions: Check the transmission design. Inspect if the brake discs are rusty. Verify if the autohold function is activated in the car. When the autohold function is activated, after the car stops and the brake is firmly pressed, the foot can be lifted, and the handbrake function is automatically engaged. To move forward again, simply press the accelerator to resume normal driving. With autohold activated, pressing the accelerator is necessary for normal driving.
That day my car wouldn't move in D gear, which was quite strange. It turned out the handbrake wasn't fully released, especially common after rain when brake discs rust. Additionally, transmission fluid level being too low or deteriorated can also be the reason, as it affects power transmission; another possibility is the engine not outputting sufficient power, such as when idle speed is too low. If the car still doesn't move after checking the brake release, I'd need to see if there's a jam in the drivetrain or an electronic control system malfunction. I recommend first trying to restart the vehicle or letting it warm up for a few minutes, then ensuring safety before sending it for repair. Don't ignore this issue - it could be troublesome if something happens on the highway.
I've been tinkering with cars myself and know the hassle when the car doesn't move in D gear. Common issues include clogged transmission oil passages or hydraulic system failures causing power transmission failure; another possibility is the brakes not fully releasing, jamming the wheels. When I handle it myself, I first check the oil level and color - if it's cloudy, I replace it. Additionally, loose connection points on the drive shaft might also cause problems. I recommend doing a simple check first, then scanning for trouble codes with a diagnostic tool. Don't delay repairs to prevent minor issues from becoming major ones.
If my car doesn't move when in D gear, my first concern is safety risks. It could be due to the brake system being stuck causing the wheels to lock, or internal transmission issues like clutch slippage. I immediately stop the car, shift to P gear to avoid damaging components, and try manually releasing the handbrake. If that doesn't work, I seek professional repair shop assistance. Never risk driving under such conditions, as it involves the loss of basic vehicle functions.
