What is the fault when the gear indicator light on the dashboard flashes?
2 Answers
The flashing of the gear indicator on the dashboard can be divided into two situations: the gear flashes, but the vehicle can drive normally without any abnormalities; or the gear flashes, and the vehicle cannot shift gears. The former is a normal phenomenon, while the latter requires professional repair shop inspection. Gear flashing is generally caused by the driver shifting gears without stepping on the brake or not pressing the brake fully before shifting. Solution: Follow standard operating procedures when shifting gears. Press the brake fully before shifting. Another possibility is that the transmission needs an upgrade. The transmission upgrade mentioned here does not refer to replacing the transmission, but rather upgrading the vehicle's computer that controls the transmission. The specific cause can only be determined after inspection by professionals. If you encounter this situation in reality and cannot resolve it yourself, it is recommended to promptly visit a 4S shop or a professional auto repair shop to identify the cause as soon as possible.
A flashing gear indicator light is usually not a minor issue and may indicate a problem with the transmission control system. Common causes include faulty sensors such as speed or position sensors, which can cause the computer module to misread signals, or poor contact in the electro-hydraulic control unit due to aging or short-circuited wiring leading to voltage instability. Sometimes, transmission fluid that is too low or too dirty can affect valve operation and trigger the flashing. I recommend first checking whether the fluid level is normal and the color is clear. If the problem persists, stop driving immediately and use a diagnostic scanner to read the specific trouble codes. Remember, ignoring this warning light can turn a small issue into a major one, such as internal transmission damage, which can be extremely expensive to repair. Safety first—get it checked as soon as possible.