Why does my car battery suddenly discharge?
Your battery connections are loose or corroded. The positive and negative terminals connected to your battery can sometimes jostle loose over time. If your terminals become loose or corroded, you might have trouble starting the vehicle because your battery can’t properly transmit its power!
What are some of the possible causes of a discharged battery?
Your car battery may begin to drain for 8 reasons:
- Human Error.
- Parasitic Drain.
- Faulty Charging.
- Defective Alternator.
- Extreme Temperature.
- Excessive Short Drives.
- Corroded or Loose Battery Cables.
- Old battery.
What would cause car battery to discharge overnight?
When you car battery discharges soon after shutting down the engine, it’s commonly caused by one of three things: Your battery may have reached the end of its service life (often 4 or 5 years). A parasitic drain is depleting battery power. A problem in an electrical system is affecting battery power.
Why is the battery on my Toyota Highlander not working?
My wife and I ran into a first for us – she went to unlock our 2008 Toyota Highlander and it wouldn’t unlock with either remote. Yeah, I figured the battery was dead as we hadn’t run it for maybe two months due to the pandemic crap.
Why did my Toyota Prius battery go dead?
Left courtesy lights on over nite and the battery went dead. Replaced the battery, wont even turnover at all. Alarm goes crazy, then stops , then goes off again, but never any power going to the starter to turn over. Also, jump does no good at all.
What happens when you change the battery in a Toyota?
Came back the next morning, left overnight in parking lot, and fob worked and car cranked. Nothing different from when it wouldn’t crank and fob wouldn’t except an overnight sleep at the parking lot. Toyota neglected to mention anywhere that changing a battery can cause the software to go nuts.
How do you change battery in Toyota Prius?
1) key in the ignition and turn it 2 clicks right. 2) if you have a toggle switch for your alarm flip it to the opposite direction. Then turn the key in off position. 3) key in the ignition and turn it 2 clicks right again.