What Causes the Vehicle Stability Control Light to Illuminate?

[Lance]

When the vehicle stability control light illuminates, it indicates a malfunction in the Electronic Stability Program (ESP). Below are detailed explanations about the ESP system: 1. Function: By analyzing vehicle driving state information transmitted from various sensors and issuing commands to systems like ABS and EBD, it helps maintain dynamic balance. It ensures optimal vehicle stability under various conditions, particularly effective in cases of oversteer or understeer. 2. Oversteer Scenario: When ESP sensors detect and transmit signals to the control unit, it applies braking intervention to the outer front wheel. This unilateral single-wheel braking stabilizes the vehicle without driver intervention. 3. Understeer Scenario: Upon receiving sensor signals, the ESP control unit brakes the inner rear wheel during a turn. This corrective braking action ensures vehicle stability.