14LTZ-1LZ

On top of the battery under the plastic cover is a battery Distribution fuse block. I would check that.

Replace the negative cable from the battery. Happen to me, I also replaced the fuse block on top of the battery. You might want to clean the ground connection to the negative cable connected to the frame first before replacing the negative battery.

PIT5405C.pdf

Did you update your transmission bypass valves to the "New GM" style when it was rebuilt? The old one opens at 194 degrees and the new suppose to open at 154.

Have you checked your battery connection? Especially the negative cable, follow the connection to the frame clean, and reinstall. They will not find any codes like you said "no power". It's like unplugging the battery and installing it again. Basily it's clearing any codes saved. Does it ever ask to roll the window down and back up again? Check this video out, also check the ground on the pillar underneath the speaker on the dash by the driver's side. Search youtube for g218 ground. Good luck.

Check the junction box behind the spare tire. Your rear camera, reverse light and trailer connection goes through this junction box.

Has anyone just replaced the crimped where they usually leak with AN fittings?

Is your headlights LED? I came across this problem when I installed LED tail lights. I had to add this: HUIQIAODS H11 H8 H9 880 881 Wire Harness Kit 50W 6Ohm LED Load Resistor Fix Hyper Flashing Blinking Canbus Error Warning Canceller Fit Upgrading LED Headlight Fog DRL Light 2PCS In order to stop the hyper flashing.

How old is your battery? When you waited 5 min. then it started again could be a loose connection, check battery, and grounds.

Currently at 129,081, but this is the last pic. I took of mileage. Second trans went out at 92,000 miles while Christmas shopping. No code or the light did not come on, no forward or reverse rpm would climb when I get on the the throttle. Just had the dealer yes dealer do a drop and fill. AFM not deleted or disabled, have a catch can and replace trans thermostat with Superior Solutions bypass valve kit. Highest trans get to is 172 when I mess around and in town 140 when driving normal, 160 on highway on cruise. Truck is still stock had to replace the muffler last year with a Flowmaster.

You tube has video on the RC your are considering here is one of the video. He doesn't talk about how strong or reliable it is.

Bought this from Amazon for $19, works on my Silverado and Malibu. VXSCAN TPMS Relearn Tool El50448 Auto Tire Pressure Monitor Sensor Reset OEC-T5 for GM Series Vehicle

I have done this update to my 2014 Silverado LTZ 4x4 added both Android Auto, Car Play and back up camera while in motion. The important thing is to get the VIN # of the donor HMI and Radio module. You will need to either take it to the dealer or know someone with a Tech. II to program to your vehicle. I bought my HMI and Radio module from "White Automotive & Media Services" https://www.whiteautoandmedia.com/ . They upgraded the HMI plus have a warranty for the Module I purchased. I got the harness from https://harnessdr.com/ , I think he's on this forum (pgamboa). He has a You Tube channel showing upgrade and update to his Silverado. Here is the link that pgamboa made for this particular upgrade

When was the last time you got an alignment? If the toe is off maybe 1/2 in difference not 3 in, but you said that you just had the front suspension replaced. Was it done correctly?