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The main hybrid battery used in the Toyota Prius hybrid, including the Prius Alpha, is a high-voltage nickel-metal hydride (NiMH) battery pack. Unlike regular maintenance that involves adding water, this battery pack does not require such maintenance. However, there is a smaller 12-volt auxiliary battery that is responsible for powering the accessories and starting the car, which may require maintenance.
Here are some steps to troubleshoot and address the issue:
Check the Auxiliary Battery Health:
Start by having the 12-volt auxiliary battery tested to ensure it's holding a charge and functioning properly. If the auxiliary battery is old or not holding a charge, it may need to be replaced.
Inspect Battery Terminals:
Ensure the battery terminals are clean and securely connected. Dirty or corroded terminals can prevent the battery from charging and delivering power.
Charge the Auxiliary Battery:
If the battery is low on charge, you can charge it using an appropriate battery charger. Make sure to follow the charger's instructions and safety precautions.
Check Charging System:
Ensure that the vehicle's charging system (alternator) is functioning correctly. If the alternator is not charging the auxiliary battery properly, it may need to be repaired or replaced.
Consult a Professional:
If the issue persists or if you're unsure about handling electrical components, it's best to consult a professional mechanic or a Toyota service center. They can diagnose the issue accurately and provide appropriate solutions.
Remember, the main hybrid battery (the one that powers the electric drive) in a Toyota Prius is sealed and does not require adding water. It's the 12-volt auxiliary battery that might need maintenance or replacement.
the only P0A0D codes in the autodata book have a-350 or 351 in the code
both refer to the hybrid battery pack--high voltage fuse--circuit high=== causes wiring--connections--hybrid control module --hybrid battery pack---high voltage fuse --inverter/ converter
following work on the engine check all connections
if that code is not relevant you may have to get it from a service dealer to find out the causes of the code
You should check to see how many "bars" of fuel you have left. A common issue with these is that the fuel sending unit goes bad, and will show you 1, 2, or 3 bars while the car has no gas. You may have run out of fuel. Even if you put new fuel in, some Prius models need to be reset by a Toyota dealer in order to make it driveable again. In some Prius models, the whole fuel tank would need replaced as the sending unit and tank is all one whole assembly. Some allow you to just purchase a new sending unit. You do also have a chance just paying a dealer for the diagnostic and having them reset the system for you. You will just have to remember to not let your "bars" get down to 2 or 3 bars. Hope this helps.
Have both your battery and alternator inspected. Turn it on, disconnect your negative battery cable, if it dies, you need an alternator, if not, then you may want to test your battery for bad cells.
some other garages can diagnose this problem m8 but its not wise as there not used to the system there gonna charge about 70pound to look at it, how old is the car? it might still be under warrenty, it should not have done to much damage though.
is the car battery flat,not the battery pack thats behind the back seat for the hybrid motor,as prius get flat batteries like a normal car if yo leave something on or because its 5 years old,I work for Toyota in Australia and thats usually the only issue but people get stressed because theyre hybrids,but get a good battery dude rehearsed in Prius to change it not backyard eddy
your owners manual should show all of the symbols and what they mean.I tried to get one to look at it but no luck...they should be in the manual though
You will need to have this light reset with a scan tool, it is stored in a non-volatile (stays in memory with or without battery voltage) memory. Have the dealer check the cause, better than a tow bill.
I had the same problem. I unplugged the relays from the fuse/relay box under the bonnet. (Top left side) and replaced them. The problem disappeared. (2001 Prius 109,000 miles)
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