2014 LTZ 5.3....I have 139,000 on mine. brought it last year 6/2016, had 111,000 on it, second owner. No fluids changed except for regular oil changes.
Had the common AC issues, last year was the cracked line that needed the bracket. now just discovered the condenser needs to be replaced due to the crack that every owner seems to have. what makes matters worse, its on national...NATIONAL, back order. GM should be fixing this for free!!!!
I have the driver assist system issue which i think has something to do with the vibrating seat. Mine only vibrates on one side and sometimes not at all.
I noticed a few months ago my water pump was squealing so thats the bearing. Not sure if I should/can replace them or just do the whole thing?
I've changed the oil cooling lines due to leaks at the crimps, trans lines are next.
Other than that...all good.
Before the 2014 I had a 99 rado extended cab with about 296,000 on it...only problems I had with that was a water pump that I changed once. alternator, changed twice probably because it was a cheap auto zone part, and a fuel pump that i changed twice sure thats due to purchasing it from eBay for about $55.
RUST...the frame had significant rust issues...noticed when I dropped the tank that one of the cross members was damn near gone due to rust...thats when I knew I had to part with my lady :-(.
It was little things due to wear and tear which is to be expected but other than that I had no issues. If it wasn't for the fear of my frame falling apart I would still be rolling.