I bought my truck used two years ago, assuming it had OEM battery so that fact it needed to be replaced after 7 years is completely logical that it was shot. I had to jump start the truck three different times to get out of town and back home a couple weeks ago before I could get a new battery purchased and installed. I had no issues other than the truck needing to relearn the driving pattern after being jumped two of the three times. All I did was disconnect old battery, remove in and replaced it with new battery. I turn the key on and I get everything one would expect, fuel pump, relays, radio, lights, everything but starting. I get the "Starting System Failure" display and that's it. I've tried looking at so many post to reset anti-theft, keys, 8 hours for BCM, I have nothing. Is there anyone who can please guide me to what I'm missing?
That's already security system has gone wacko those years had some problem with security systems especially when change the battery. Find mechanic like myself that has equipment to reset the alarm system. But you might try this and sometimes works disconnect the battery then turn the ignition key to on then connect the battery back sometimes that fools the system and it will work again
I did try this yesterday, but I completely discharged everything today, disconnected neg put jumper between pos terminal and ned cable, hoping that might work. Did not, but I can sure try your suggestion again. Thanks
Hope this helps. Vid, shows a 2015 but should be the same for yours
https://www.youtube.com/watch?v=baaF9d_4-1s&ab_channel=WinterAutoRepair
