2016 Silverado A single click when key is turned but battery reads 12.5v and charged. All other electrical lights/instruments seem to work fine.

SeamlessPants · April 26

So my cousin moved my truck to rinse it off and when he went to move it back it wouldnt crank and just did the single click, which I believe is from the starting solenoid. We tried to jump it and slow charge it with no difference. We unhooked the battery and reattached it. I checked the starter/starting fuses. I gave the starter a few taps and checked the voltage that was getting to the starter and still just that single click and no leads on what is wrong. Well the next day, I went out there and just gave it a random try and it cranked right up on the first turn of the key. Ran fine all day. Next day my same cousin goes to back it up to get the lawn mower out and sure enough it is back to that single click. Stayed like that for roughly 2 days while I researched and tried several different things and was about to take off the starter to go get it tested but before I did that I tried to start it and it cranked right up first turn. Cranked right up for the next 2 days and this morning I went out to go to the grocery store and apparently we are back to the click. So the only think that is odd that I have noticed is that when I was about to take off the starter and before that when I was checking the starter connections and grounds, I took the passenger side front tire off to have more room and put it back on when I was done. Well now the tire pressure screen in my dash menu only shows the pressure of the tire that I took off and put back on. I have seen a couple more possibilities of what it could be but I was wanting to see if anyone else has had a similar experience or for sure could help me troubleshoot this.

PFTX_5.3 · April 26

6 hours ago, SeamlessPants said:

So my cousin moved my truck to rinse it off and when he went to move it back it wouldnt crank and just did the single click, which I believe is from the starting solenoid. We tried to jump it and slow charge it with no difference. We unhooked the battery and reattached it. I checked the starter/starting fuses. I gave the starter a few taps and checked the voltage that was getting to the starter and still just that single click and no leads on what is wrong. Well the next day, I went out there and just gave it a random try and it cranked right up on the first turn of the key. Ran fine all day. Next day my same cousin goes to back it up to get the lawn mower out and sure enough it is back to that single click. Stayed like that for roughly 2 days while I researched and tried several different things and was about to take off the starter to go get it tested but before I did that I tried to start it and it cranked right up first turn. Cranked right up for the next 2 days and this morning I went out to go to the grocery store and apparently we are back to the click. So the only think that is odd that I have noticed is that when I was about to take off the starter and before that when I was checking the starter connections and grounds, I took the passenger side front tire off to have more room and put it back on when I was done. Well now the tire pressure screen in my dash menu only shows the pressure of the tire that I took off and put back on. I have seen a couple more possibilities of what it could be but I was wanting to see if anyone else has had a similar experience or for sure could help me troubleshoot this.

First thing to check when you have weird electrical problems is the grounds, they are notoriously bad on these trucks.