What is the reason for the failure of the Regal's auto start-stop function?

[DelTaylor]

The reason for the failure of the Regal's auto start-stop function: It may be caused by a malfunction in the car's battery, which needs to be checked. The auto start-stop function is a feature where the engine automatically shuts off when the car needs to temporarily stop during driving and automatically restarts when the car needs to move forward again. The Regal is a mid-size car under SAIC-GM Buick, with a length, width, and height of 4913 mm, 1863 mm, and 1462 mm respectively, and a wheelbase of 2829 mm. In terms of power, the Regal is equipped with a turbocharged engine, which has a maximum horsepower of 237 hp, a maximum torque of 350 Nm, and a maximum power of 174 kW.