What is the warning light for the electronic stability program?

The warning light for the Electronic Stability Program (ESP) is usually yellow, and its illuminated or flashing state conveys different system information. When the ignition switch is turned on, the light will briefly illuminate for about 2 seconds to complete the self-check before turning off, which is normal. If the light remains on continuously while driving, it may indicate that the ESP system has been manually deactivated or a malfunction has occurred. If the light flashes rapidly, it indicates the system is actively intervening to correct vehicle skidding (e.g., when turning on slippery surfaces). If both the ESP and ABS warning lights remain illuminated simultaneously, this may indicate a fault in the wheel speed sensor or hydraulic unit, requiring immediate professional inspection and repair. Notably, ESP maintains vehicle stability by coordinating engine torque output and individual wheel braking. Together with ABS and the traction control system, it forms an active safety network. Therefore, when the warning light is on, avoid aggressive driving and use a professional diagnostic tool to retrieve fault codes promptly. Keeping ESP enabled during normal driving is fundamental for safety; it should only be temporarily disabled in rare situations, such as when extricating a vehicle from sandy terrain.