Why can't the Haval F7 be remotely unlocked?

[Teri]

Haval F7 cannot be remotely unlocked possibly due to poor signal or surrounding interference. High reliability: Engine remote start uses an electric motor to start the engine, eliminating mechanical wear issues of heaters, thus significantly reducing the probability of failure. Convenient to use: The remote control range is usually no less than 50 meters. If the vehicle is parked in a ground parking lot, the engine can be started remotely in advance from home or the workplace. Automatic timing: Normally, the remotely started engine will automatically shut off after a period of time if no operation is performed, avoiding possible fuel waste caused by forgetting to turn it off. Whole vehicle heating: This function, like parking heating, warms up the coolant in the radiator, so whether it's the cabin, the engine, or the windows, they can all be effectively heated.