Why can't the Chery Tiggo 5 automatic transmission engage?

[DeJasper]

The gear may be locked or not fully braked when parking, directly shifting into P gear, causing gear braking instead of brake braking. Precautions for shifting gears in automatic transmission vehicles: Generally, after parking an automatic transmission vehicle, it should be shifted to P gear to prevent rolling away in neutral or being unable to remove the key when in drive gear. To continue driving, the engine must be started and the brake pedal must be pressed to shift gears. When the brake pedal is pressed, the brake light switch will activate, sending a signal to the computer, allowing the gear to be engaged. If the brake light switch malfunctions, it will not send a signal to the computer, making it impossible to shift gears. In this case, it is necessary to visit a repair shop to check the brake light switch. Automatic Transmission: It does not require the driver to manually shift gears. The vehicle will automatically select the appropriate gear based on the driving speed and traffic conditions. Generally, automatic transmission vehicles have six gear positions, from top to bottom: P, R, N, D, S, L.

[Maggie]

My Tiggo 5 automatic transmission sometimes fails to engage gears. The issue might be related to the brake pedal components, since automatic transmission vehicles require pressing the brake to shift gears. If the brake light switch is damaged, it won't trigger the gear-shifting mechanism. I've checked several times and found that low transmission fluid levels or leaks could also cause this issue, especially if it suddenly gets stuck while driving, which is quite dangerous—you'd need to pull over and try again. If it still doesn't work, the gear-shift interlock mechanism or worn-out buttons might be the culprit. I suggest first checking if the brake lights are working. If not, take it to a repair shop—don't force it to drive, safety comes first. This kind of malfunction is quite common, and regular checks of transmission fluid and electrical systems can prevent a lot of trouble.