I've got a few more opportunities next week to test 4.15.12, or may be it will be 4.15.14 by then!
A mixed bag with a drive of two halves, literally. 2021.4.15.12
Outbound, driving east into the sun, dry, but wet roads, some standing water, with the roads often totally obscured from glare, the car was as it should have been. Not a single collision avoidance warning - same drive, similar conditions last week, I had a handful of them and the car was as nervous as nellie on TACC. Today I was following another vehicle a few times so TACC at their mercy, and did notice that the car seemed to surge a bit more than in the past - a bit like my early experiences of TACC/AP when the car seemed to either full throttle or full brake and not smoothly transition as it accelerated or slowed. I did notice many human drivers cutting white lines today, or overshooting stop lines - maybe it was the glare. On one of these occasions, when on a 50 mph A road, I was on TACC and had to move over the centre line as a car was overhanging our lane slightly. I was expecting the car to complain, but it didn't until I had actually started to pass the car, at which point it slammed on. It was far to late to have done anything useful and as I was several meters from the stationary vehicle, totally unnecessary.
Coming back heading west, most of the drive was M25/M3. It started off dry. Car took the outer lane on M25/M3 interchange which was not a lane you would normally use unless busy - the car had pretty much the interchange to itself at that point. For some reason, the car disengaged auto steer. No fanfare. I suspect I may have been holding on too tight at the point that it was choosing to go left rather than straight on. Inability to get speed limit right on merge (its a long 50mph) hasn't changed but I was on manual 50 limit. Someone is going to get caught out by that one day as its an average speed check and car thinks much of the merge is a 70. Back on auto steer/NoA.
I then hit a cloud burst. Wipers worked really well although when rain suddenly stopped, it was overly long before wipers calmed down. However, the traffic then started to bunch, road was soaked from the cloudburst and loads of spray being kicked up by the cars. The wipers just did not wipe, to the point that had you left them auto wipe, you could not see out of the window. For anyone not knowing how to manually trigger the wipers, this would have been a hugely dangerous scenario. #failbigtime I'll see if I can salvage some front camera footage to see what view AP had - visualisations looked correct and car behaved itself nicely even though NoA was off due to bad weather detected.
I then came across my junction where I would normally turn off. Nav told me to come off but NoA was I believe (I wasn't actually monitoring the single/double blue line) still inoperative which was fine as on this occasion, I decided to go to the next junction. NoA did not try and take me off at that junction - its 4 lane at that point, then lane turns into off ramp so 3 lanes between off and on ramps, then back to 4 lanes. So I was in lane 2, which became lane 1 through the junction. The car then started to behave exactly as if it was on the off ramp, except I was on the motorway. The car started slowing and told me that NoA was about to end. At which point, the car started turning NoA on and off - rapidly alternating between the single blue and double blue lane lines in the visualisation. I had to manually take over speed control. Basically the car behaved according to its nav directions and not its actual road position and direction. This is latest nav map.
The rest of the journey was uneventful, although autosteer did turn itself off on off ramp earlier than I would have liked - again, I'm probably holding steering too tight as the car makes an ever tighter (uncomfortably tight) turn on the circular off ramp.
So unlike last weeks near perfect journey on 4.15.10, this weeks on 4.15.12 was a completely different story. But as a Tesla owner, you get use to the cars inconsistent behaviour, so not entirely unexpected.
