Steering wheel replacement for "System Malfunction Visit Your Dealer" dash warning

Replacing the Toyota wheel that came on it with another Toyota wheel fresh out of a box?

Wouldn't worry me....

 

There are too many buttons in that wheel to replace it with something other than a replacement OEM one. Unless you like not being able to control things on the car.

The sensor that's a problem probably isn't in the steering wheel itself. My guess is It's the steering angle sensor - which is behind the steering wheel. It's not all that unusual for those to go out, but that usually happens after a decade or so, and not after only a year.

 

Just thought I'd add to this thread - it's one of the ones I found while searching.

I had the same message, with the failure icons showing for LTA, LKA, PDA and LCA. Same repair proposed - steering wheel replacement.

Those are all the functions which rely on steering wheel hand detection, and the wheel replacement means the problem has been diagnosed as capacititative touch sensors in the wheel.

The other fix I've seen apply to one person online is a replacement of just the steering wheel ECU (which is in the wheel to read the touch sensor and control the heating).

Still within warranty, but not by that much. Hope the new wheel doesn't give up after warranty...

 

Capacitive would be the more luxurious line, correct? The base model does small steering changes. I believe to see if you’re still holding the wheel. I thought the luxury model used interior cameras.

 

In the US and Europe, PHEVs have the capacitative sensors. That's associated with the lane change assist, and possibly traffic jam assist.

There is a driver camera too, but that's for attention.

 

The camera is for TJA, since it allows hands off driving.

 

Not to drag this off topic, too much, but a search I did to educate myself revealed VW's failed experiment with capacitive steering wheel touch controls. I'm reminded of the stupid light switches on the Prius. I set off a light every once in a while, and look how far removed from, say, the steering wheel it is. Then too, you can't be wearing gloves or have to have conductive pads on them.

I guess the infotainment touch screen is similar. I had to take off gloves, and it was cold.

Same as with the fancy steering wheel, I imagine, when it works. Bare hands or fancy gloves.

All in the name of quasi self driving tech. Not progress.

 

I thought the issue with VW's buttons was in accidently activating them or require looking for the desired one to hit. Not an issue when used as another way to see in a hand is on the wheel, as it is just one big button you want to be hitting all the time anyway.

As for the gloves, my touchscreen works with all gloves(so far). Same with the smart key sensors on the door handles. Seems to be a solved issue.

 

Maybe it was my gloves. They had no conductive pads. Just coated with rubber, the antithesis of a conductor, lol.

I didn't say it was, just that a search is littered with the VW experience, plus I related my opinion of the Gen5 Prius light buttons, which are not tactile, but capacitive, I assume, since they don't work with my (rubber coated ) gloves, but somehow my head seems to set them off when it gets near. And in the Gen5, you're bobbing and weaving a bit in there at times.

edit: I might ask what car you are talking about in your experience? Gen5 Prius?
edit2: The glove in question, lol:

 

Having nothing better to do, I just found that those gloves do work on the door handles but not the touch screen or the overhead light switches.

Again, sorry for dragging the thread off topic.

 

I take it back.
I was driving around tonight and the gloves started working on the touchscreen and the light buttons, as well as the door handle.
Voodoo.