Air suspension issue

[mq019]

Hey guys -

I'm out on a road trip for vacation with my family and running into an issue with the air ride suspension.

A couple of days ago it quit responding at all - any time I try to adjust the ride height, it shows a message on the DIC that says it's "unavailable".

There are no codes (I checked). I have shut down and restarted the car multiple times. I've tried it parked, moving slowly, etc etc.

The truck is level and sitting at the normal ride height, but will not raise. I haven't tried lowering it because I don't want it to lower then not be able to raise back up.

It had been working earlier on our trip. I was able to raise the ride height when off-road, and was able to lower it to get lowest setting to get it in a parking garage. Just within the last couple of days it's refused to do anything.

Anyone have any ideas or should I just wait it out until I get home next week and can take it to my dealer?


Thanks!

 

[Kpwweb]

You might try pulling the fuse for it, or at most disconnecting the battery for a little while. Otherwise I would wait it out until you get home.

What year is the truck and how old/what condition is the battery?

 

[mq019]

You might try pulling the fuse for it, or at most disconnecting the battery for a little while. Otherwise I would wait it out until you get home.

What year is the truck and how old/what condition is the battery?

Thanks - I'll take a look at the fuse this morning.

It's a 2025 Yukon XL AT4U 3.0 - about a month old.

 

[Stbentoak]

A vehicle that's that new should go to the dealer immediately. I wouldn't screw with anything trying to fix it. There are always a few new build glitches in the first six months of ownership. Mostly once those get ironed out these vehicles turned out to be pretty dependable. My air suspension has worked flawlessly for four years straight, no reason years won't either once fixed.

 

[mq019]

A vehicle that's that new should go to the dealer immediately. I wouldn't screw with anything trying to fix it. There are always a few new build glitches in the first six months of ownership. Mostly once those get ironed out these vehicles turned out to be pretty dependable. My air suspension has worked flawlessly for four years straight, no reason years won't either once fixed.

Yeah - I'll definitely get it in as soon as I get back when it goes in for it's first oil change. Was just wondering if there was something dumb that I was missing.

I'm not super worried about it. Shocks/bags are holding air, so they're good as is for me to finish the trip, and no codes so shouldn't be a huge deal. I figure they'll get it sorted out once I'm home.

Thanks!

 

[Joseph Garcia]

Yes, if disconnecting the battery negative cable for 10 minutes does not reset and fix the issue, then forget about it and finish your vacation. Then, take it to the dealer after you return home.

 

[WalleyeMikeIII]

What drive mode are you in?
Certain ride heights are not available in all drive modes. For instance, you cannot go into “Increased” ride height when in tow/haul mode. And you can only go to Max ride height in 4Low. Also, if the load comes the vehicle is too much, you cannot go above normal. Speed is also a factor.

Attached are screen shots from owners manual.

 

[alpha_omega]

What drive mode are you in?
Certain ride heights are not available in all drive modes. For instance, you cannot go into “Increased” ride height when in tow/haul mode. And you can only go to Max ride height in 4Low. Also, if the load comes the vehicle is too much, you cannot go above normal. Speed is also a factor.

Attached are screen shots from owners manual.

Second this comment. If this isn’t your issue. Off to the stealership. No reason it should have issues already.

 

[BacDoc]

Second this comment. If this isn’t your issue. Off to the stealership. No reason it should have issues already.

Stealership?

Are you implying they brag about customer service but try to charge the highest price they can get for the sale, and if you have problems, it’s like pulling teeth just to get someone to respond?

They never do that! Do they? LOL

Seriously some are not bad and the one I use is pretty good. I know things have gotten expensive but when you consider the price we pay for these trucks. customer service should be a priority !

 

[2024 White Tahoe]

Yes, if disconnecting the battery negative cable for 10 minutes does not reset and fix the issue, then forget about it and finish your vacation. Then, take it to the dealer after you return home.

Disconnecting the negative battery cable MAY erase any stored trouble codes, preventing the dealer from properly diagnosing the issues.