2015 Chevy Silverado after 100k miles and Problems to look out for 

Your complaining about the transmission issues then say your at 100k and that you’ve never changed the fluid or filter... lol.

I've only had one problem with my 2015 Chevy Silverado and that was the starter and it has almost 80,000 miles on it and the transmission does shift a little hard like you said but besides that it's a great truck it's even the same color of brown

I have a 2014 Silverado RWD, no 4X4. Installed a catch can, AC went out and had to have that repaired. Trans Flush at appx 40,000 Miles. Dropped Trans pan and replaced the filter@ around 100,000 miles. (see your maintenance schedule) it is recommended. I think Trans Failure is planned by all manufactures to get you to buy a new vehicle. so perform maintenance on your transmission. (may be too late for that to help now) also should install external trans filter. again, I believe auto manufactures leave these off intentionally so transmissions fail and you buy another vehicle.

afm disable

My 2014 Silverado crew cab LT 5.3L rwd has 260k miles, and transmission has been rough since 3k miles, but engine does not burn oil. I always services my truck meticulously though. Engine oil change every 5k miles with new filter, rear end fluid xhange ever 20k miles, and transmission oil every 30k miles. Antifreeze drain and fill every 40k miles. I've only changed suspension parts, and an o2 sensor. I live in southern commiefornia, so i rarely use the AC. I guess i was one of the lucky ones that got a decent truck. Also, i added an oil catch can the frist month i brought my truck home back in 2015.

More GM junk No quality anymore old Chevy trucks were the best

The trans is to be flushed at 50,000 miles I thought that was strange but by 100 that means two times lol

It’s a chevy😂

Check the heater hoses to the firewall for the coolant leak. Where it drips off it won't burn but will cause a loss of coolant. The GM engineers thought having a quick-connect hose would be a great idea...for replacing it is, but for longevity... not so much.

The faded buttons is just dirt. Spray some all purpose cleaner and use a clean toothbrush and it should be good as new as possible.

My 2013 dodge used to use oil too, Mobil 1 full synthetic was the remedy. As far as trans, check your lines the clips on those go bad trans cooler lines typically pop off and cause trans issues. These are easy fixes if you know how to maintain your truck properly and keep an eye on everything. Transmission flushes are a must on these new model vehicles to prevent trans wear. Other than that you’re dealing with normal shit that everyone deals with.

Had that sound issue on my 2015. Replaced the battery and it fixed it.

Good to know. Thanks for sharing your experience.....

Hi yeah got a 2015 Silverado high country crew cab with a cap had 143,000 km on it up here in Canada 5.3 I swapped out all the fluids to Lucas putting your transmission transfer case everything as well as new plugs new wires a k&n air filter seafoam treatment in the tank to per tank for the first couple tanks drove across country and back not a single issue did have one a little bit later and it's still the AC is not as close as should be but that's just a recharge issue which I still have dealer warranty for so good truck all in all it has now $162,000 still runs great

thanks for sharing I'm thinking of getting a 2014-15

I wanted to share this tip that worked for me. If your Silverado clunks in shifts, undo the batttery for a few minutes and reattach. The clunking totally stopped. Did it over a year ago, still no issues.

I appreciate this review. Wish it would’ve been shorter and more organized. Considering trucks myself these days. I’ve owned maintained and used an 07 Trailblazer for 10 years now. It’s been good but I do a lot of preventative maintenance before things break. It’s surprising that this truck consumes all the fluids. The price of new trucks scares me. Those warranties are really valuable but you’re also paying for the truck an extra one or two years to get that most likely anyway. If these problems are to be expected anyway used prices are so much more palatable.

I agree with you 100% I'm a ford guy myself and bought my 1st chevy silverado ltz 3 weeks ago no problems yet

I too have a '15 that I bought in '17 with 21K miles from a Chevy dealer (lease return).. It's taken me this long to get to 96K now 11/23. The things I did right after I got it was disable the AFM with a tune (Diablew). It is likely why your 5.3 uses oil. At first service of the transmission, I welded an O2 bung with plug to the pan and do drain & fills every 2nd or 3rd oil change (@4K) and used a STL010 TBV bypass to lower trans temps from ~190F to ~143F. Serviced the front and rear diffs and TC. The torque converters in these trucks are prone to failures due to flexing. (Sonnax has a great explanation)

Have a 2017 High Country 6.2L/ 8spd, bought it new, first thing was the fluid flush with Amsoil ATF and a Trifecta tune, got rid the hard shifting and clunks. As for oil consumption no issues again, but I added a catch can when it left the lot. All fluids have been changed to Amsoil. Other than that like the truck and knock on wood no problems yet. All manufacturers have issues including Ford and Toyota and yes some of it's stupid things but others are serious. Good luck with yours and keep us posted. Cheers