Common causes for this light to turn on include a faulty wheel speed sensor or an issue with the ABS controller. The brakes should still function if this light comes on while you’re driving, but emergency braking performance may be reduced. This system improves braking performance on slippery roads by pulsing the brakes to prevent the wheels from locking up and skidding. The ABS light features a yellow or red circle with the letters "ABS" in the center, and it illuminates when a problem is detected with the anti-lock braking system. Possible causes can include worn brake discs or pads, low brake fluid levels, a stuck parking brake, or an issue with the anti-lock braking system (ABS). Call for a tow if this doesn’t turn off the light or if the light comes on while you’re driving. Try setting and releasing the parking brake when it’s safe to do so. When illuminated, this light indicates that either the parking brake is engaged or that there is an issue with the braking system.
The brake warning light features a red circle with an exclamation point or "P" in the middle, or simply the text "BRAKE". A faulty throttle position sensor is one of the most common reasons for this light to turn on. While the vehicle may still be drivable, it’s best to pull over and stop due to the potential for damage. The system triggers the engine light to turn on, and – in some vehicles – a "reduced engine power" readout may also illuminate. This setup is designed to protect the engine, transmission, and other driveline components from damage. Modern vehicles are equipped with a failsafe system, or limp mode, that limits engine performance if a major fault is detected. If the tires are all still inflated, you should drive to the closest service station to check the pressures and add air if necessary.Ĭommon reasons for this light to turn on include a puncture, a faulty tire pressure sensor, as well as seasonal temperature changes, which can cause a tire to lose pressure gradually. Call for a tow truck if any tire is flat, or change the tire if your vehicle is equipped with a spare. Driving with a flat or underinflated tire is unsafe, as it can drastically alter the vehicle’s handling. If it turns on while you’re driving, you should pull over and stop as soon as possible. The tire pressure monitoring system (or TPMS) is responsible for activating this light. This warning light signifies that one of the vehicle’s tires is underinflated, and – in some modern vehicles – it can indicate which exact tire has low pressure. The tire pressure warning light is depicted as a yellow tire with an exclamation point in the middle.