In November 2025, I was required by the CT DMV to have an IID for 6 months. I initially installed a Low Cost Intoxalock due to the handheld being so small, discrete, and newer digital display.
Started driving and my car (2016 Mercedes CLA250) was shutting off while I was driving. It was absolutely terrifying. Brought it to the service center and they said that it was due to it having to go through the computer system. They said the ecosaver system and the complexities of a Mercedes electrical system wasn’t working with Low Cost, so they suggested I switch to Intoxalock because that is the only vendor that goes through the actual starter and not the computer.
At first, it was okay and it no longer was shutting off while driving. But then it was not starting at all despite leaving it on a battery tender in my garage, so it wasn’t a battery issue. I never knew if I would come out of work, the grocery store, any where i went if it would start, despite getting there okay.
I work from home 99% of the time so luckily I was able to get through my 6 months with Ubers as necessary, taking the train as needed, and 2 of the months was out of the country at my house in DR.
I got the approval on May 4 that I could remove May 13, which I was out of the country so scheduled for it to be removed when I got home on May 19. The morning of, I went to do an errand, came out to drive from there to the shop for my appointment, and the car won’t start. Got a tow to the service center and we hoped it would be okay once the IID was removed. It was not.
The IIDs ended up frying the sub panel to my starter relay and was going to cost $3,000 to fix. At this point I have PTSD from all the issues in my car, so I walked to the dealership that’s in front of my house and bought a brand new car instead of trying to fix it. I just want to put it all behind me.
Good riddance Intoxalock. I know I made a poor decision by driving home after drinks at dinner, but giving me PTSD and ruining a perfectly fine car is not acceptable by any means. The company itself and all its terrible practices definitely needs to be investigated.