Audi A6 Quattro brake light switch failure causing brake lights to remain on and affecting ABS and traction control systems on Audi A6 Quattro

Some Audi A6 Quattro owners report experiencing issues related to a failing brake light switch, which can lead to various complications such as the brake lights remaining illuminated even when the engine is off. This malfunction may trigger warning lights for the ABS and traction control systems, indicating potential problems. Additionally, owners have noted that the brake lights might stay on after the vehicle is locked, simulating the effect of a pressed brake pedal. In some cases, a defective brake light switch can also cause the check engine light to illuminate and trigger an annoying chime when the brake pedal is engaged. It is crucial for owners to address these brake light switch issues promptly to maintain the proper functioning of their vehicle's brake lights and safety systems.