What Causes the Steering Wheel to Pull to One Side in a New Car?

[AnastasiaFitz]

The reasons for a car's steering wheel pulling to one side include the following: 1. Uneven tire pressure on the left and right sides: The higher the tire pressure, the smaller the contact area with the ground, resulting in less rolling resistance for the wheel. The vehicle will tend to pull towards the side with relatively lower pressure. 2. Uneven tread wear on the left and right tires: The tire surface has a layer of rubber tread with a certain thickness. As the vehicle is used, the tread thickness gradually decreases. A tire with more tread wear is equivalent to a smaller diameter, causing the vehicle to pull towards the side with more tread wear when driving. 3. Poor piston retraction in the brake caliper on one side of the vehicle: When the brake piston on one wheel does not retract properly, it increases the rolling resistance on that side, causing the vehicle to pull towards the side with increased resistance. 4. Inaccurate wheel alignment: If the camber angles of the wheels on both sides are inconsistent, the vehicle will tend to pull towards the side with a larger outward tilt angle.