MikeMikeMike

One more hiccup the passenger window will no longer respond. All other windows function

Hi all done a few searches and googled but can't find this error 2020 GMC sierra HD 2500 Denali Diesel. My battery had depleted. Recharged it and then was able to start. I got some really odd things calibrate driver window by opening and closing. check engine light. I called onstarI mean we pay for it right they have me error code u 18 DC. I can't find a thing. Any ideas??

Thanks to both of you for answers!

Nwstver, I have seen WSP talk to every driver and check chains even in 4wd. WAC 204-24-050 (A)Exception for all wheel drive vehicles. When "chains required" signs are posted, all-wheel drive vehicles will be exempt from the chain requirement when all wheels are in gear and are equipped with approved traction devices as specified in WAC 204-24-040 provided that tire chains for at least one set of drive tires are carried in the vehicle.

So, my state requires you carry chains in winter in on Mountain passes. The manual says nope for this tire size, but I can find nothing thst would not clear a class s chain or even truck chains on thr rear. It has more clearance than most vehicles. Has anyone done it or seen an actual problem? Due to the weight I don't think "socks" are allowed BTW.

Mine was more related when actually braking but at least its a TSB to look at. I don't know if it happened in 2021s

Glad I'm not alone

There was a TSB for the 2020 and they just replaced all brake pads on my truck last week. 20NA020 maybe the same issue?

Recently had my brakes replaced under a Service Bulletin. After they were replaced the dealer did not reset the wear monitor in the DIC. I followed the online directions of gojng into the DIC after setting the pushbutton start for 5 seconds then going to brake % and holding the select on steering wheel for front and back. To no avail it will not reset. Any tips anyone has on how to reset this?

+1 following this as I have a 2500 HD I would like to do it with.