So this happened this morning, all these dash lights. Used my Autel and got a P0A80 code, replace hybrid battery. No other codes. Have not been having issues with the hybrid battery at all! It’s even been fully green at times on the hybrid infotainment screen. Should I get a new hybrid battery from Toyota, or independent specialist? It’s going to Toyota on Saturday for some suspension issues anyway. There is a local independent specialist near me. I’m in the UK.
idk the options you have there. new oem is best, but expensive. if you intend to eep the car, it is worth it. here, there are myriad rebuilders, some better than others but all a crapshoot for longevity. salvage is another option, but can you trust age and miles, and how long it's been sitting?
Update: Spoke to my local Toyota. They asked re the 12V battery, and if it has been replaced recently, which it has, by them. They said this can cause the error code to be thrown up. I’ve cleared the code, no symptoms or limp mode etc. Can the 12V being changed cause a replace-hybrid-battery-code?
No, only a weak 12v can cause unintended error codes sometimes. It should be load tested, even though new. If it is good, you should have the codes checked with tech stream, that will give you more detailed information on the hybrid battery cells
expect that red triangle to go back anytime soon, when that happened to me it took several days to show up and then it becomes frequent. 12v issues can cause a lot of codes other than p0a80 (like codes for car modules "under voltage")
So I should get Toyota to check the health of the hybrid battery? because I’d want them to replace it if it does need replacing.
Are you the sort of person who can do fairly easy hands on repairs to your car? There are a lot of threads on here and a lot of You Tube videos about accessing the traction battery. There is a good chance the problem is corroded terminals and sense wires that just need cleaning and painting with an anti corrosive paste like Alminox. If you aren't the type to attempt your own repair, then I'd say go with the Toyota dealer, it won't be cheap, but it will be the better option. T1 Terry
Has, Just be careful as the 200v battery can kill so wear electrical insulated gloves. Once you have disconnected the bus bars (for cleaning) the battery is safe as each module only has 7.2 volts. JeffD
Once you pull the main fuse, the battery is broken up into one larger and one smaller battery that would require quite a feat of flexibility to get connected between the negative and the positive. But, it never hurts to be careful, so be sensible and wear insulated gloves to both protect you electrically, and from possible chemical burns from the corrosion build up. This will get you to the battery and how to take it out. and here is one on pulling it apart but you will find heaps of them on You Tube and threads on here about testing and cleaning etc on the Gen 2 battery T1 Terry
