I had to replace the battery on my 2017 Prius 3 after 66,000 miles. I think it was my fault. I might have left the accessory mode on overnight. I might have also left the lights on for about five hours a week before. I am really not sure. This is what’s called the nincompoop driver replacement. I got the dreaded display message about the 12 volt battery, and the car would not start. I got a boost and went to the northern New Jersey dealership. At first they were talking about re-charging the battery. Then I asked about the $180 battery replacement deal they have posted in the service area. “That depends on the battery,” was the first BS reply. Given my circumstances, I had no choice but to replace the old battery and get hit with a $335 bill for a Toyota TrueStart battery. In the end I am glad to have a new battery and the assurance of its reliability as winter approaches, not to mention that a DIY job may or may not have been done correctly given all the potential electrical issues. The battery “includes” two years of Toyota roadside assistance coverage. I am sure the cost is included/forced onto the bill. See attached file for the display message:
The 2016 Prius battery is the most basic of all Toyota batteries. If there is a deal for $189, it would be for this car battery.
i thought it was a one off like previous generations, and difficult to come by. but the fact that triple a had one on the truck (in another thread) makes me wonder
If it was still original, then it was also 6 years old, which is about the expected lifetime. I had been nursing my original 2016 OEM battery until just recently. Kept a 12V jump pack in the back, and had been needing it more and more frequently to boot up the car. Didn’t want to leave my wife alone with a weak battery so just replaced last week with Walmart H4 for $160. It’s an exact fit and comes with 3-Year warranty.