I used the new M8 connection to the underground Rozelle spaghetti junction yesterday for the first time, and the Tesla Nav and TACC got completely and utterly confused. It was part hilarious and part scary.
The hilarious part is that the Nav had absolutely no idea where I was. The M8 tunnel from Beverly Hills to St Peters is very long, and now with the M8 extension to Rozelle, even longer, so the dead reckoning gets more and more ’off’ the further you go. But what really threw it was the Nav wanted me to take the Euston Rd exit at St Peters, which is where the M8 used to end, but I kept going straight ahead to get to Rozelle on the new section of tunnel.
Well, the Nav thought I was driving on the surface streets, which in the Inner West, are short and very close together. So I was hit with an incessant “turn left at… turn right at… turn right at… turn left at…” without any pause between the directions. It actually made me laugh out loud. It would then get so confused the Nav blue line would turn off for a bit while it tried to work out what to do next.
The scary bit was how TACC behaved. On two occasions, the Nav thought I was approaching a T-intersection on a surface street at speed. And so TACC aggressively braked. Not a temporary phantom braking due to other traffic, but serious deceleration in order for me to not slam into the phantom kerb opposite the T-intersection it thought I was approaching.
I had to turn TACC off. It was that bad. Luckily this was late on a Sunday evening and I had the tunnel to myself, so there was no chance of rear-ending, but a warning to anyone else using this piece of road until the Nav and maps get updated.
It wasn’t until I emerged on the City West Link that the Nav finally worked out where I was.
