6 ms·

Now I'm curious about my Volvo. I do most of my freeway driving with the adaptive cruise control adjusting my speed to match the flow of traffic. I have no idea

Now I'm curious about my Volvo. I do most of my freeway driving with the adaptive cruise control adjusting my speed to match the flow of traffic. I have no idea if my brake lights are triggering when the ACC slows my vehicle due to a slower car in front of me. I certainly am not touching the brake, unless I need to stop more quickly. Given Volvo's reputation for safety, I'm assuming they got it right but that is purely assumption on my part.

rootusrootus 3y ago
My guess is that most decent TACC implementations won't activate the brake lights when slowing for a car in front, unless that car cuts you off. Generally the deceleration should be slow enough that it falls under 'engine braking' levels and therefore unworthy of a brake light.