Lane Keep Assist "Unavailable"

[Theweavman]

I hope they have good luck with your system. Had sone of the same   repairs , some improvement, LKA now works, but side detection still a problem  

[Theweavman]

How is this for nuts, I take my truck thru a drive through car wash, and then my Lane Change alert and side detection system starts to work, it appears to work until my truck becomes completely dry then it stops working and I get the SDIC side detection warning that its temporarily unavailable.......my guess is there must be a faulty connection somewhere, and when water gets in there somewhere it completes the circuit..........problem is finding exactly where this bad intermittent connection may be, if we can find it, it should be an easy fix........

[Hub101]

Same issue here. 2021 Yukon . Had it for less than a week and the lane assist starts acting crazy. It’s been at the dealer for three weeks today. Changed out the front camera but can’t get it programmed. Two different programs and still nothing. Was in the shop 4 days prior to this due to “service safety restraint system “ light. Harness fixed that issue... but they have no idea how to solve camera / lane assist problem. 

[Mario Osorio]

I have the same issue with my truck 2021 gmc sierra 1500 diesel, it was working and then it stop working and I took it to the dealer, and the truck were seating there for more than a week,  they gave me the truck without fixed,  then they told me that they have to order a module. I'm waiting to they call me to see if they can fix the issue. And another issue that this truck has is: the transmission sometimes slips 

[1454]

Same issue here. It went out 4 weeks ago, and the dealer can't get parts to fix it. I'm pretty pissed that I have a truck that can't manage the same core functionality of my old subaru. I drive about 500 miles a week currently, mostly all hwy, and this is a major issue that GM seems to care not about fixing. I'm sick of the excuses about "parts" when they still keep trying to build new trucks. How about keeping working first, then worry about making new ones.

Based on their handling of this situation, this may be my last GM product.

[Smadar]

Hi my 2020 Silverado Lane Assist is unavailable also. I’ve had this truck a little over a year and so far the power went out 3 times. Absolutely no power. Couldn’t even open the doors without the key. Now I keep a power pack inside the truck at all times. The dealer found nothing, after 3 days I had to take my truck home. Now the lane assist and cruise control are off and it’s 2 weeks to have a mechanic look at it. smh. 
I’ve been driving Chevy’s since 1976 and never had so much trouble from a new vehicle. idk

[Jerry Walleston]

My 2019 Silverado just got the 'unavailable' message. Certainly an update or software issue.