Horn not working after MCU upgrade

[DeejUK]

Has anyone else experienced the horn not working after an MCU upgrade? I had the procedure done about a month ago on my '17 90D, and two weeks later realised that the horn was completely ineffectual - it wouldn't work when the steering wheel was pressed, nor through the app. I've done a two-wheel salute, and the wheel reconfig reset, and it still doesn't work. There's no way on earth I'm going to pay for Tesla to fix this, and I'm pretty annoyed that they gave me the car back in a non-roadworthy condition.

This is in addition to the heater failing this week. Man, I'm getting fed up with the number of issues with this car.

 

[Damager99]

First time I've heard of this issue - I'd definitely schedule it into the SC, as that is a big safety issue.

 

[DeejUK]

First time I've heard of this issue - I'd definitely schedule it into the SC, as that is a big safety issue.

Thanks. Sadly it's not the first time that the horn has ceased functioning. The turn signals have also failed twice too.

A lot of things will need to change at Tesla before I buy another of their cars.

 

[henderrj]

Wow, you certainly have had a lot of problems. One of my two horn units failed. Sounds pretty pitiful now, but it still works. I also thought it might have had to do with the MCU upgrade, but I don't think it did. Hopefully this works out for you!