high voltage traction battery

How did the hybrid battery look and was it charging when you coasted?

Posted via the PriusChat mobile app.

 

How's the 12 volt battery?

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did you run out of gas?

did all the dash lights come on?

who changed the plugs, a reputable hybrid shoppe? dealer?

you need to get the codes read.

how many miles on her?

 

Most likely it is. Summer heat can be the final nail in the coffin (BTDT).

You have several options. I list those and what I did first and last to solve the issue a couple of years ago. It's in my signature link.

GOOD LUCK!

 

anything is possible. how many miles did it run fine for after the work was done?

 

sounds like something wasn't connected tightly

 

if you run out of gas, the car will keep driving until the hv battery gets low, then all the dash lights come on and it coasts to a stop.
that was my experience in my 2008.

i don't know for sure, but maybe the same thing happens if the engine quits for any other reason.

my battery had enough juice left to start the engine after i put 3 gallons of gas in. don't discount that the gen 2 has a bladder, and sometimes the gauge becomes inaccurate.

but telling you the drive battery is out isn't enough information to take the next step. in some cases, a recharge from a grid charger is all it needs.

 

Yes if the engine quits for any other manageable reason while your still going, you will be running on electric only with the engine as a drag. Now if pistons go flying out the hood, obviously this isn't the case. But if you run out of gas, have too many misfires, fuel pump dies, etc you can coast off the road and call for help. Instead of stalling in the middle of traffic and trying to push your car off the highway with people throwing things at you for making their commute even worse.

If you're on the original traction battery, it is possible this was the last nail in the coffin. It could also be things like the hybrid inverter overheated because the pump stopped working. Texas in what is basically summer heat, this becomes a possibility.

What are all the codes logged on the car? Everyone is just guessing until we get that answer.

 

Re-reading the OP, I'm not sure now what is going on. Motor dies but still can go 40mph on a 10 year old HV battery? That would be extremely hard to accomplish.

There should multiple alpha-numeric trouble codes but the main ones are like PA080, P0301, etc. Others that start with a C or U are typically secondary in nature or not even related.

 

The HV battery is not needed to read codes; only the 12v battery needs to be functioning. Does the car power up at all (dash lights, radio, etc)?

 

it is possible that reconditioning would work, but idk the qualifiers. read through the threads and contact jeff at prolong

a ten year old battery with 220k often go forever, that's why taxis do so well. especially gen 2