this post was submitted on 23 Aug 2026
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The emergency braking I understand, I've driven some downright paranoid vehicles with that tech.
I had my Tesla slam on its brakes from 55 mph because it was convinced the car sitting at a stop sign at a crossroad was about to turn into my lane. Last time I trusted Autopilot in anything other than stop-and-go traffic. Not really in a hurry to find out if the Ioniq I have now does it any better.
Give me fully autonomous vehicles on roads where human drivers aren't allowed, or let me keep control, thank you very much.
I had a similar incident; I was in the second lane of a freeway and a truck was going to merge into the first lane from a cloverleaf, and my Tesla freaked the fuck out and slammed on the breaks. I was lucky there wasn’t a car behind me for a bit.
For what it’s worth, I hear that Tesla has by far the worst tracking for their adaptive cruise control and auto brake feature, especially after moving to camera based tracking. I’ve owned 3 cars with adaptive cruise control and never had any real issues. Biggest problem was a 2011 Volvo that would sometimes keep tracking vehicles going out in a turning lane, but never braked hard for no reason. Probably your Ioniq will work fine as well.
I recently also experienced this for the first time in a rental car, some Toyota SUV-style model. Super annoying half the time, the other half it did work but I was anyway already about to break. Not sure I liked it overall.
25 Subaru Outback Wilderness- I was backing up to do a u turn since there was a bigass tree down on the trail road I was driving, the radar saw a singular weed on the shoulder and emergency braked. I had my mom in the passenger seat and she thought we had straight up slammed into a log.
Mine's decided that my mountain bike on the back of the car was an obstacle I was about to hit before.
Even better when it also does "emergency avoidance" and sends you right into guardrails or oncoming traffic. That happens only once to you unwanted during the lifetime of the car and you immediately turn that shit off forever.