Why Doesn't the Automatic Transmission Car Move When the Brake is Released?
3 Answers
Reasons why an automatic transmission car doesn't move when the brake is released: 1. On very steep slopes, it's normal for an automatic transmission car not to move when the brake is released. Due to inertia, the resistance increases, and the vehicle requires more forward power than resistance to move. Simply pressing the accelerator will solve the problem; 2. Some car models have transmissions set not to move without pressing the accelerator, which is equivalent to being in neutral. This feature eliminates the need to shift to N gear when waiting at traffic lights; 3. Apart from the above two situations, if an automatic transmission car doesn't move when the brake is released, it indicates a vehicle malfunction. In this case, there could be various potential causes, such as issues with the transmission, drivetrain, throttle, etc. The owner should take the car to a 4S shop for inspection and repair.
I've been driving and repairing cars for many years, and there are quite a few reasons why an automatic transmission car might not move when you release the brake. For example, the torque converter in the transmission might be stuck, preventing power from reaching the wheels; or the braking system might not fully disengage, like if the parking brake isn't completely released or is jammed; it could also be an issue with the electronic control unit, where signal failure causes the car to just stand still. Hill-start assist is another common reason, especially when parked on a slope—the system automatically holds the brake for a few seconds for protection. I think the first step is to check the basics: make sure you're in Drive (D) and the parking brake is fully released. If that doesn't work, don't force it—try turning off the engine and restarting. Regular maintenance is key: change the transmission fluid and periodically check the sensors. These issues can range from minor damage to serious danger. The number one rule is safe driving—if you notice a problem, don't panic, and get it handled by a professional shop.
When I first learned to drive, there was a time in the supermarket parking lot when I released the brake but the car didn't move, making me sweat with anxiety. Later, I realized it was an operational error—the car might have been in P (Park) or N (Neutral) gear, and I forgot to shift to D (Drive). On a slope, the automatic hill-start assist activated, causing a delay of a few seconds before moving. It could also be that the handbrake wasn't fully released or the brake pads were stuck. I learned to always check that the gear is in D or R (Reverse) before starting, ensure the handbrake is completely disengaged, and lightly press the accelerator to activate the system. New drivers often overlook these details, but forming these habits can prevent awkward situations and accidents. Pre-warming the engine before driving regularly also helps, especially in cold winters when the car responds slower. In short, more practice to familiarize yourself with your car's characteristics is key.
