Lane Centering

When my truck was new, it kept the truck dead center of the lane with no deviation. Now 40k miles later it still works, but there is definitely more play in the centering. Not pin-balling, just a little more movement side to side.

When it was new, as soon as it started into a curve the centering would shut off (like it's supposed to). Now, the truck does much better at taking slight curves with the centering on. Like it's learning how to take curves.

I mentioned this to the dealer and he said lots of guys say the same thing. Anyone here have this same experience? Is the straight-line play just due to mechanical wear on the steering? How is the truck "learning" to take curves?

 

At 25,000 miles mine is the same as it ever was. It sucks anywhere there are hills and curves, drops out at moment's notice. On flat straight roads I have found that it varies a lot depending on clouds, lighting & shadows, the quality of lane markings, etc. Sometimes it tracks straight, other times ping pongs. To believe the system was actually changing or "learning" I'd have to see a side-by-side test on exactly the same piece of road under exactly the same conditions, which would be nearly impossible to duplicate. I don't believe it is that smart.

 

Very much this.

I keep mine turned off.
Mine just randomly came back on the other day.....now I gotta figure out how to turn it off again.
Damn E-nannies.

 

100% agree with all of this. It ain't that smart. Also, on my last trip from Minneapolis to Denver, I noticed that strong side or quartering winds really affect its ability to stay centered. Only time I use it is on long stretches of interstate with good lane markings just to be able to relax a little.

 

I agree very much with this view. I've learned to like it and rarely turn it off, but I'd say the biggest factor for mine is angle of the sun. I travel the same highway a lot, and I can always predict how well it will work based on the sun's position. I'm just shy of 23k and it seems to behave the same as new....which is several different ways.

 

Yup, sun angle for sure and oncoming headlights too.

 

The Lane Centering on my truck has always pin-balled side to side from the day I drove it off the lot. The first time I used it on a long road trip, it caused my wife to wake up from a nap and ask me "Why are you swerving so much?"

I thought it was just my truck, since some guys claim their Lane Centering doesn't pin ball. So, I took a new '24 Tundra for a test ride, and it was no different than my truck.

I've concluded it's a poorly implemented feature on the Gen 3 Tundras. I've used Lane Centering on other vehicles, and they were significantly better. Since you still have to keep a hand on the wheel, I don't really get the purpose of it. I can steer a much straighter line myself, so my Lane Centering stays off permanently.

 

I think it's mainly due to the fact that we ended up with TSS 2.5 instead of 3.0. I would think during the 26 refresh they would bump it up to 3.0

 

What ever happened to DRIVING your own vehicle? I tried it once just to say I did, I keep most of that BS turned off. I'M the driver, the truck is not.

 

Not sure about you but after 3+ hours on the road, I can actually appreciate some help from the electronic nannies. Never said it's supposed to drive the truck, just help a bit. And I will take that little bit of help any time.

 

ya, in a heavy crosswind, like I-65 south going into IN, it helps cut down on the fatigue

but other times its irritating, they just really need to update the system like the other toyota models

 

Don't think we will get 3.0 - someone commented on here (possibly @testerdahl) saying it's a hardware + software thing, not just software (to get from 2.5 to 3)

 

yup, thats why I said during the 26 refresh , then it would make sense

 

it's comments like these that I don't understand.

Every time I've tried it, it puts me on edge due to the pin-balling and the random on..off..on for no apparent reason. My truck tracks as straight as any vehicle I've driven. It's literally effortless to drive. I don't even think about it. Lane Centering turns it into a distracting carnival ride.

In what way does it help you?

 

I don't notice it very much in mine. Feels like I'm on/over a line by the time I get feedback. My wife's Honda is way more active in keeping centered.

 

You might be confusing Lane Centering with Lane Departure. They are 2 different features.

Lane Departure detects when you are drifting out of the lane, and it will give you a warning, then attempt to steer the truck back into the lane. God forbid, you forget to use your turn signals to change lanes...it will fight you. That's another nonsense feature that remains off in my truck.

Lane Centering actually steers the truck for you, and it's suppose to keep you centered in the lane, but it doesn't do it well, in my experience.

 

Hmm I’ve never tried either of these things in my tundra. I’m not even sure how to turn them on ha But I’ve read a bunch of posts on FB about the ping ponging back and forth. Just not worth it to me.

 

This. Lane centering needs to be turned on in the MID. Once it's on there, it will turn on when radar cruise and lane departure (Lane Trace Assist in toyota terms) are both on.

 

My lane centering works pretty well on the highway. I’m only 10k miles in but mine is pretty reliable on the interstate. Lane centering with adaptive cruise, I find, makes my frequent 3-8hr interstate drives less exhausting. It’s not perfect, I still have to turn it off a fair bit depending on conditions, but if I’ve got a long stretch of straightforward highway, it feels like a nice break to turn on for awhile

 

ahhh, I didn't realize they were two separate systems. I have only 1500mi on it so far

 

Correct. Lane Departure, Lane Centering, and Vehicle Sway Warning are all features under Toyota's Lane Tracing Assist system.

https://www.toyota.com/owners/warra...article/tundra-hv/2022/om0c031u/ch04se050403/

I'm wondering if there is some sort of calibration that is wonky on mine. My truck ping pongs at least 12" side to side no matter what sensitivity setting it's on, or how clearly marked the lines are. I've traveled cross-country 4 times, and I still haven't found a stretch of highway where it works like it should.

 

Pressing the button on the steering wheel rotates the 3 modes (lane departure, lane centering, and off).

Lane centering will only work if the cruise control is set. If in this mode, and it can see the roadway lines, you will see blue lines on the outside edges of the road depicted on the gauge cluster.

I think it also remembers the last mode you left it in.

EDIT: The toggle is only between lane departure mode and lane centering mode, if enabled. To disable/enable those modes altogether, hold the steering wheel button down for 3 seconds.

 

Does anyone get the “hands on steering wheel” warning while going straight on the interstate with cruise control and lane assist? It seems to happen abnormally frequently to me.

 

Every 11 seconds. It expects you to keep your hands on the wheel.

 

Yup. Which makes the whole feature kinda pointless to me. If I have to keep a hand on the wheel, I might as well steer the truck myself, especially since I can steer a much straighter line than Lane Centering can.

Out of curiosity, I called my service department, yesterday, to see if there is a calibration that can be done to make it more functional. As usual, I got the typical runaround. First the receptionist claimed she had never heard any complaints about Lane Centering. When I told her a 30 second search online would show hundreds of complaints about this feature, she reluctantly said she'd have a service advisor call me back...still haven't received a call back.

 

Not just hands on wheel, it needs to feel you put some steering pressure on it. Which is not ideal the few times the system is actually working well and tracking straight and doesn't need any input.

 

I'm not sure about the "steering pressure". You can actually jam a water bottle into the steering wheel and trick the system to not get the hands on wheel warning.

 

That's the same thing. The wheel needs to feel resistance. It would be better if it were capacitive, but then might not work with gloves.

 

I guess I'm not clear what you mean by "resistance". You can even just set/balance a partially filled water bottle on the wheel, and it won't throw the warning.

Not that I'm advocating that, but it does work if you need two hands to eat a messy taco.

 

When it steers to correct it feels the weight of the bottle or the resistance of your hands, or some folks use a rubber band. Same thing. On the rare occasion when the truck is tracking straight and true and not making any significant corrections it doesn't know if your hands are on the wheel or not and will pop up the warning message. Normally it is ping ponging enough and fighting you that this doesn't happen.