No codes etc and yes, it is push button. I am just curious if computer needs the shift lever to be in park to shut down completely? To have a battery die so quickly and completely it was like something was left "on".Any stored codes or a malfunction light? I doubt the neutral did it but to leave it in neutral (with a key ignition) you can't remove the key, but yours is a push button start, isn't it?
I know low batteries cause strange gremlins to happen. Hopefully someone more knowledgeable will be along to assist.
Thanks, I was mainly curious and I will chalk it up to just a coincidence. The most expensive battery I've ever bought, ouch!I doubt this caused your issue. I’ve worked with batteries when I worked at the FAA and they are a mystery at times. 4 to 5 years is a win win. I’ve seen newly installed batteries quit. That’s why the FAA had battery monitors developed to give techs a heads up on weak batteries. I have a 2018 as well and my battery quit after a year. After struggling with it for a few weeks, it measured 9 volts so I had a cell or two that checked out early. It was under warranty so I got a new one free. Unless your truck was making all kinds of noise and appeared to NOT shut off, don’t think that’s the reason for the failure.
I think it was time to replace. As fast as it went down, I know now I'm glad it happened in the carport. I use the truck mainly on 200 mile+ trips and am thankful it didn't happen on one of them. Answer to your question, I think it would last for several hours without a battery. Mine was a week dead, I assume, hence the reset on some of the systems. Your VW way sounds like a good thing, but I don't think it's warranted if you decide to replace the battery (before it unknowningly dies suddenly).Thinking about replacing my 2018 battery now. Did you remove yours and let the truck go dead, or did you try to keep 12 volts on the cables? I did this with a battery charger when I changed the batter on my 2017 VW Golf, and it worked. No problems.
Good scoop, thanks! VW dealer said car would need to be reprogrammed after battery change. Stealerships.I think it was time to replace. As fast as it went down, I know now I'm glad it happened in the carport. I use the truck mainly on 200 mile+ trips and am thankful it didn't happen on one of them. Answer to your question, I think it would last for several hours without a battery. Mine was a week dead, I assume, hence the reset on some of the systems. Your VW way sounds like a good thing, but I don't think it's warranted if you decide to replace the battery (before it unknowningly dies suddenly).
This is just my opinion, I’d suggest taking the battery as far as it can go within reason. I’ve had a battery last 6 years and I’ve had at least 3 last 2 years. At the end, they all exhibited strange behavior, ie, hard start, loss of radio memory to name a few. But if you’re taking a trip or have a long commute, it may be smart to change it out. And don’t forget to try gently/firmly hitting the terminals if you can’t get your truck started and you’re “out” somewhere (the flashlight trick!). This worked for me on one of my dying batteries.Thinking about replacing my 2018 battery now. Did you remove yours and let the truck go dead, or did you try to keep 12 volts on the cables? I did this with a battery charger when I changed the batter on my 2017 VW Golf, and it worked. No problems.
Good guess @PeteK but my terminals were dry and tight. No corrosion. Being an electrical Engineer, we covered this in a class a long long long long time ago. You could also hit the body of the battery but you run the risk of cracking it. Try it the next time you have any battery that’s about toast. What do you have to lose? This could really help you out in a pinch. I will say that this worked on 1 of my bad batteries. Tried it on another and it did not work.If you can get a vehicle to start by tapping firmly on the battery terminals, that suggests you have a bad connection at the terminal, probably due to corrosion. You should listen the terminal bolt, twist/wiggle the connection, then tighten it back up. I can’t guarantee that will fix your battery issue, but it’s a good bet.
