What are the reasons why the tailgate button of the Baojun 730 cannot be opened?

[Lucas]

Baojun 730 tailgate button may not open because the central control is locked. If the central control is not locked, you can press the button on the right side of the license plate light on the trunk door, and press it once to open. If the central control is locked, press and hold the middle button on the remote control for 2 seconds until you hear a "bang-dang" sound, and it will open. The dimensions of the Baojun 730 are 4780mm in length, 1820mm in width, and 1755mm in height, with a wheelbase of 2750mm. The Baojun 730 is equipped with two types of engines: a 1.5-liter four-cylinder naturally aspirated engine and a 1.5-liter four-cylinder turbocharged engine.