ADAS / Sensors (Other) - Other Symptoms
Common symptoms and diagnostic guides.
Car slows near overpass edges
If your car consistently slows near overpass edges, the most common causes are ADAS phantom braking (ACC/AEB misreads road geometry) or traction/ABS intervention from wheel-speed sensor signals over expansion joints or uneven pavement.
Car slows near faded paint signs
Cars with advanced driver assistance systems may decelerate unexpectedly when lane or road paint markings are faded or low contrast, as sensors misinterpret the surroundings.