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Message: <blockquote data-quote="ORVietVet" data-source="post: 25787" data-attributes="member: 9438">I have a 2005 Tahoe Z71 and at one time owned a 2002 Tahoe LS. IMO, after being in shops for 40+ years and seeing a lot of different models and gens of the Tahoe/Yukon/Suburbans, the GMT800 wins hands down as far as reliability. I don't need much other than the most comfortable seats of any GM vehicle, GMT800, and the reliability of the rest. I just want heat/a-c/radio/air bags/power/control and great viewing. I get that with the GMT800. I have also owned pickup trucks that were GMT800's. One weak point, that I am dealing with this morning, is the ignition switch. I have not changed one on my 2005 Z71 YET but have on the 2002 Tahoe and my girls 2002 TrailBlazer.  Easy to swap out but wish it would last longer. The original GM switch was all black and then an upgrade had a grey cover on one side. Now, GM no longer makes it. Lots of aftermarket. OE #15242754 fits my Tahoe and is a US331 in Standard. Luckily, I saw this coming and bought a Genuine GM one about a year ago. The other electrical component that can cause problems, is the electrical junction box/connector plate at the passenger side rear, that is exposed. I have one of those too.</blockquote>