How to solve the problem when the brake light is on and the car won't start?

[LucyMarie]

The solutions for when the brake light is on and the car won't start are as follows: Check whether the brake caliper and brake oil pipe are leaking. Below are the reasons why a car won't start: 1. Battery depletion: When the car battery is depleted, the car will fail to start. There are many reasons for car battery depletion, such as lack of water in the battery, battery failure, or prolonged use of the air conditioning. When the car won't start, the first thing to check is whether there is a problem with the car battery. 2. Low temperature: In cold winter weather, cars often fail to start. This is because in low-temperature environments, the viscosity and rotation speed of the car's engine oil decrease, leading to reduced ignition energy from the battery and decreased molecular activity, making it difficult to form flammable gases and thus hard to start the car.