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Walleye Message Central - View Single Post - Yukon Denali Wind Buffeting
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Old 02-13-2021, 02:27 PM
REW REW is offline
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Join Date: Nov 1999
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Posts: 39,139

Does this vehicle have an electronic stabilization system installed.
If so, is it functional?

I don't remember the year, but it was my understanding that all larger passenger vehicles after a certain year were supposed to have such a system installed and working.

My Son had a Mercedes 423? I believe. It had such a system installed. I had borrowed the vehicle one year to pull my boat to Canada for a fishing trip.

We were driving along just fine and my buddy had reached under the seat, pulled out the owners manual and we were finding out what all of the buttons and lights did in the cabin.

We were driving straight west at the time and I could have been steering with one finger, because the vehicle was so easy to control.

I did have both hands on the wheel and the disable the ECS system button was pushed. Suddenly, I was driving on the left hand lane on the 4 lane road. Then, we came by a grove of trees, that sheltered the vehicle from the wind, and suddenly, I was back in the right hand lane, without really doing anything the steering wheel.

Then, I re enabled the ECS system, and the vehicle instantly calmed down and was virtually impervious to the gusty north wind that was causing the vehicle to swerve when it hit the car with the system disabled.

When I check, I find that a 2017 Yukon comes equipped with an ECS system.

Owner's Manual - GMC Owner Centermy.gmc.com › 2017-gmc-yukon-xl-denali-owners-maual
Yukon/Yukon XL/Denali. Owner's Manual. 2017. Yukon/Yukon XL/Denali ... It is an alphabetical list of what is in the manual and the page number where it can be found. Danger, Warning, and ... outlets can be used to plug in electrical equipment, ... Electronic Stability. Control ... systems come on automatically when the ...

I wonder if the ECS system was working when you took the vehicle for a test drive.

If it was working, you really should not have been experiencing the symptoms you mention.

However, if the system was not working, it would be normal to have the vehicle exhibit your reported symptoms.

Best wishes.
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