Power Steering Loss - help!

[2001 TX Tahoe]

2016 Yukon XL 4WD, 87k miles. Dash message came on saying “Service Power Steering, Drive with Care” and I lost all power steering assist. I can still steer (with LOTS of effort), and everything else seems to be fine. No other noticeable issues. Anyone have thoughts on what could be causing this?

 

[LordWayback]

2016 Yukon XL 4WD, 87k miles. Dash message came on saying “Service Power Steering, Drive with Care” and I lost all power steering assist. I can still steer (with LOTS of effort), and everything else seems to be fine. No other noticeable issues. Anyone have thoughts on what could be causing this?

You have electric power steering* most likely what tends to happen is you either have the known steering gear / rack issue or you could have a bad ground if the ground isn’t corroded it might be the actual ground cable , another person can chime in and correct my part number but i believe it’s universal for 2014-2018 GM trucks/SUV’s
AC Delco :

ACDelco Battery Cable - 84634113​

 

[LordWayback]

2016 Yukon XL 4WD, 87k miles. Dash message came on saying “Service Power Steering, Drive with Care” and I lost all power steering assist. I can still steer (with LOTS of effort), and everything else seems to be fine. No other noticeable issues. Anyone have thoughts on what could be causing this?

https://static.nhtsa.gov/odi/tsbs/2017/MC-10113356-9999.pdf

Technical service bulletin on your Yukon XL and every GM truck/suv in the era it should show you in detail the only thing you can probably do without a mechanic

 

[LordWayback]

2016 Yukon XL 4WD, 87k miles. Dash message came on saying “Service Power Steering, Drive with Care” and I lost all power steering assist. I can still steer (with LOTS of effort), and everything else seems to be fine. No other noticeable issues. Anyone have thoughts on what could be causing this?

Oh and if you read it and attempt it there’s a major difference between inch pounds and ft lbs the TSB says both

 

[2001 TX Tahoe]

Thanks for the feedback!

 

[2001 TX Tahoe]

Any idea where “G218” is located?

 

[Fless]

 

[2001 TX Tahoe]

Thank you!