They'll have a torque sensor for stuff that actually needs the torque, like the general electric steering assist, but it seems quite likely that they don't monitor it for the "are the hands on the wheel" function, given that everything needing hands-on-wheel information goes offline when the touch sensors fail. They don't retain functions that could use just the torque sensor, pretending the failed touch sensors didn't exist.
It may be a difference in equipment in different markets, but I thought I read that the base Prius in the US lacks a sensor in the wheel that would detect touch. We also don't have to deal with eye sensors or speeding alarms. In my car, a cheap one, the "put your hands on the wheel!" warning goes away only of the wheel is moved slightly.
As @KMO explained, the US Gen 5 Prius PHEV has an eye sensor and a capacitive touch sensor. A car speed warning system will be mandatory by 2030, thanks to a recent California law, so the Gen 6 Prius will definitely have it.
I posted this thread and forgot about it. I purchased a 2024 XLE AWD a little over a year ago and really enjoyed driving it as a daily. I have a few other vehicles that I don't daily so this was great for everyday errands and highway grind. Well a couple months ago my wife 14 Prius blew a head gasket at 214K so I purchased a 2026 RDX ASpec AWD because we wanted more space for travel. I have to say I'm underwhelmed with it especially since it was $20K more than the Prius. Thinking about going back to another Prius XLE AWD but hoping for: 1 Front bumper block eliminated 2 More sound deadening 3 Better range from the key fob to remote start (not paying $15/month) 4 A spare tire but doubt this will ever happen again. (I did the whole kit in mine).
One of the reasons I didn’t go for one of the higher trim models of the Camry was some of the optional safety features cause more annoyance than assistance, at least according to the reviews I saw. A lot of reviewers got annoyed at how intrusive the front cross traffic alerts were and how the driver camera was tuned poorly so it would repeatedly tell them to look at the road when they were already paying attention. The main automated safety tech I wanted on my car was automatic emergency braking. TSS 3.0 has that and radar cruise, lance centering, side traffic alerts, and rear cross traffic alerts. I think in order for TSS 4 to be notable, it will have to add some kind of standard feature that it currently doesn’t have. I think a lot of car brands are stuck with automation development because level 3 automation would get them sued. It’s supposed to be good enough to drive the car by itself… sometimes. And because we don’t have very good ways to determine when it’s okay to let the car drive itself and when not to, most car companies are sticking with level 2 automation until /unless they can come up with a workable level 4 or 5.
On my 2024 Prius the Front cross traffic alert can be easily turned off and the driver camera is sensitive but it’s training me to keep my eyes on the road LOL. I am convinced that driving with the Adaptive cruise control and the other safety features reduces the risk of an accident substantially.
Then what does the Prius hybrid and many other models that don't have a touch sensor use to detect hands on the wheel? Do you actually have it? It isn't standard on the XLE. There will be driver monitoring cameras on the steering column for it. Adaptive cruise and lane keeping will work down to a stop on their own. They may not start back up without driver input.
They use the torque sensing. You've lost track of the conversation. I was responding to your assumption that Priuses that do have touch sensors still use torque sensing too.
I do. i have the Premium Plus package. The first thing I did is disable the driver monitoring camera though. Adaptive cruise will work down to a stop, but too aggressive for hybrid driving. They should have adjusted the programming to better use regenerative braking.
You need the camera to use TJA. It's how the system knows you are watching the road when hands off the wheel. Can't you adjust the adaptive cruise acceleration and braking levels in the settings? I got four options on that aggressiveness level in the Subaru.
gosh I'm sorry to interrupt this riveting bikeshed on how exactly auto-drive sensors work, but... Yeah, I honestly think this might be the last generation for the Prius. They aren't making many; I had to go on a quest to get mine with the specific combination of features and color, and I haven't really seen many of them on the roads since then. Even in TV adverts it's like "check out the CAMRY and COROLLA and RAV4! oh yeah there's Prius too". It doesn't seem like Toyota is pushing this one particularly hard anymore. Which makes sense; there's just nothing to make it seem unique anymore now that every Toyota platform is available with a hybrid drivetrain. I guess you could say that it's bringing a more sporty look to Toyota's lineup, but Toyota has always preferred that you buy a Lexus if you want something with a sporty look.
