Sharon Davis

Service Bulletin 16-NA-061 Dated 12/2017 Same thing been happening on other GM Vehicles and I have a 2020 Sierra 1500 AT4 and had both water leak and TPMS RKE problem but haven't found a SB for my truck yet, should be. They had to replace RCDLR, has major problem getting them to communicate and then ended up with "Service Steering Column Lock" msg after and then truck just had locked up steering column, flashing all kinds of warnings on dic, orange engine light on and kept trying to crank over and over but wouldn't start. Tow truck guy finally got into neutral, but then Parking Brake turned itself on, then battery died, so had to drag truck with rear wheels locked up on tow truck. MC-10116920-9999.pdf

Not center console or other, found active water leaking in channel in back window (had taken it in last winter because inside windows would actually ice up in winter and they couldnt find leak) and I started having some electrical issues then and told them. There are 2 SB's that cover my issues EXACTLY: 1) 18-NA-383 August 2020 Water Leak at Rear Sliding. Window (IT SAYS FOR 2019'S BUT A BUNCH OF 2020S HAVING SAME EXACT SAME PROBLEM) 2) 16-NA-061 December 2017 Service Tire Monitor System/Tire Pressure Display Dashes/RKE Short Range/No Fob Detected Message (IT SAYS.ONLY GMC YUKON 2015-2018 MODELS AFFECTED) I had to look online and find these SB's myself. Of course, when I took it in to dealer last winter (and it was still under the Bumper to Bumper warranty) they couldn't find anything. Taking it in tomorrow with both service bulletins in hand, but they have already said I have to pay for it myself and try to deal with GM after the fact. Will post update

I am having same issue with my 2020 AT4 including keyfobs and tire pressure alert. Did anybody ever find out what needs to be fixed?