It might just need an alignment done.

 

the tires, tire pressure....

 

What have you done about it? There are many possible causes, but it would be interesting to know what you had done since new!

 

Caster causes a car to run straight.
Toe will cause a left or right pull.
Camber affect turning and cornering.
It sounds like you have a low caster. That would cause the car to drift. If the caster is too high, it will be harder to deviate from a straight path.

 

That is why needs to know what OP had done to the vehicle since it was purchased!

 

I'd bet on alignment. My 2017 with about the same miles had the same problem. I complained that it didn't straight line like my old 2011 Traverse. Now it's the best straight liner I've ever had.

 

I complained that it didn't straight line like my old 2011 Traverse.

Not going straight usually is an alignment. But going from left to right usually is NOT an alignment.

 

I doubt it's an alignment. Tires or tie-rod is my guess. But it's extremely difficult to diagnose this over the net. You need to take this to a front-end specialist.

 

Tires, maybe, but likely not. Tie-rod relates to TOE - IN/OUT which will make the car pull in one direction or the other.

 

I’d guess tires and or air pressure.

 

Step one: take it to a shop to have the front suspension checked for worn parts. Get those taken care of before anything else.

Step two: get it aligned by a shop with a computerized alignment rack. Most shops should have those now. Just avoid the ones with the guys who use a piece of string and a plumb bob...lol They can get you into the neighborhood, but if you're paying to have it done spot on, pay a little more for the real thing.

Improperly aligned "toe" could cause it to wander on the highway too. Vehicles need a little tow in to be stable on the highway. I once had some worn front suspension parts replaced, and the shop that did the job took it next door for the alignment. Well, the guys in the other shop didn't align the car and the toe was off when I got it back. (Camber and caster was not adjustable on that vehicle). It wandered a bit and didn't want to track straight on the highway. I took it back and they actually aligned it that time. It tracked perfectly afterwards.

 

Step two: get it aligned by a shop with a computerized alignment rack. Most shops should have those now. Just avoid the ones with the guys who use a piece of string and a plumb bob...lol They can get you into the neighborhood, but if you're paying to have it done spot on, pay a little more for the real thing.

I agree with almost everything you're saying but.. does this fancy alignment rack do a good job at testing real conditions on the highway?
Can it stimulate wind, uneven road or high speed driving?

That would be cool to have. Full on environment Simulator like in the Resident Evil movie..

i bet all the FTK crypto in the world, he could go through all of that and still have the issue despite then paying however many hundreds for the time and service...

if that happens, maybe they'll come back and tell us.. but "vehicle walking all over" , is textbook steering or logically the sway bar end links. The camber isn't great on any of these vehicles as they age but it would show in the tires if there's a problem.. either way there's no real way to adjust it short of a bandaid fix for alleviating the sag of a worn out part due to fail anyway.

OR I'm tripping out and forgot my meds today, u decide

 

One other thought, check the tires. Are they new? Old? Are they directional, pointed in the correct direction. A bad or defective tire can cause a pull condition when alignment specs are dead on.

 

Weird you say it wonders left and right. Just about every road has a bit of lean to the left or right to it. Rarely perfectly flat, My car is pretty sensitive to the slight angle of the road at highway speed. If I let go of the steering wheel it will drift left or right depending on the road and I am usually always holding just a little pressure on the steering to keep it straight, I too thought I had an alignment issue but when I am on an actual flat roadway it will track dead straight. Not that this is your issue but came to mind when you mentioned both left and right. Does it have a problem left and right on the same roadway? For sure needs to be looked at by a professional to see what is going on. Any play in your steering wheel when parked?

 

In the absence of an alignment printout, my hunch is the Steering axle requires an alignment adjustment to overcome the irritation.