Ever figure this out? I have a used 2015 Denali that only has about 24k on it roughly, we just bought it off a lease return and it’s certified so I’m at least covered for a little while! I put it in 4WD Auto today for the first time and right noticed this high pitch squeaking sound, as soon I turned the 4WD auto off, the noise went away, weird! Any help is appreciated!
2016 Yukon XL Denali Noise
- Thread starter Mikef
- Start date
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I used to get a high pitch noise from the environmental sensor in my Silverado, don't know if that could be your same problem but look for it on the ceiling, looks like a small speaker cover I think these newer trucks have two of them one for front and one for rear, its just an idea to throw out there to see if the noise is coming from that.
Tahoe14
Full Access Member
Wasn't there a TSB on this. Something to do with a high pitch noise when shifting to 4WD.
That's great news.... now if I can just find the TSB! The dealership didn't seem to have a clue what I was talking about, or about the steering column clicking/popping I hear, smh...
JTRATX
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OP, ever find the cause?
