"Check hybrid system, stop immediately" message

Could be the 12v battery, or it could be a combination of things.

1)Is it all doors that do this? Or just one or two? The actuators on this car are a known issue.
2,3,Warning)Could all be because your cooling fan beneath your rear seat is clogged. If you aren't getting the battery assist, the car will feel sluggish. If the battery is hot, the engine will do the behavior in (3). I've experienced it many times in Georgia summers and it's always in quick full throttle to quick pedal lift situations when hot.

It doesn't hurt to have the dealer look at it. If he comes back with something other than the battery, I would suggest cleaning the fan to see if that resolves the issue before allowing the dealer to perform something. You cleaning the fan is free, after all, will just take the time of removing the back seat to get to it.

Prius C backseat removal in 10 steps | PriusChat

 

have you ever had to jump start the car? or has it ever sat for a long time? 2014 12v should not be a problem, but worth checking the voltage. and the fob battery. have you tried the second fob?

 

You have 2 separate problems. Just to get it out of the way, yes the 12v battery can be a culprit. When the 12v auxiliary bus is low, the car cannot properly diagnose itself. This can cause all sorts of phantom warnings. An original 12v battery is on its last legs, but I doubt your issues are related to the 12v. And remember, once the vehicle is READY the inverter is producing the 12v aux bus voltage and the battery is out of the loop except for if the draw is so high the inverter shuts off that bus for safety. I've experimented with this one strange condition before drawing 1KW out of the bus with an inverter. But no, I don't think this is your immediate problem but you should get that battery replaced in the next year or so.

For (1) it sounds exactly like you have a bad door switch. To prove this to yourself, put the car in D with your foot on the brake in your driveway and open your driver door. You will see that message to put it in park. Additionally, park the car and turn it off and leave the door open and try to lock or unlock the car. It won't, because the car door is open.

Now... how does the car know the door is open? It is not clairvoyant, it uses a mechanical switch. When the door is shut, the plunger of the switch is pushed in, the car knows the door is closed. If you keep the door open, but push the plunger in manually, the car will think the door is closed. Your switch is most likely faulty. Over time, the switch wears out. Every door open/close, is a wear cycle. All your symptoms of this point to one of your doors having a bad switch, and the most likely culprit are the doors that are most often used. Rear passenger doors of taxi cabs and driver doors of normal cars.

(2) and (3) are again the same thing. Your battery is hot, low, or both or your inverter is hot. The cause of this problem can be one of many things. Could be a clogged fan making the HV battery hot. Could just be age, this is what happens as the battery fails because it goes low very often. Could be your inverter getting hot because the coolant pump isn't working. Could be a general malfunction in that system.

So 2 different problems, both are somewhat well known

 

Sounds more like a bad key fob to me. I'd suggest trying your second one first just to eliminate it before going through 2k1Toasters suggestion. But if it behaves similarly, then proceed.

 

There may be a way to only remove the front kick panel/vent cover. I honestly haven't looked at it to see and haven't had to try this, yet. Sorry...

 

For a 2014 Prius C? No way. And it would be under warranty.

 

Do we know what the Toyota Hybrid warranty is in Nicaragua?

 

Nope no idea. But a 2014 C failing now is suspicious...

 

good luck! sometimes just cleaning the bus bars and etc. is all that's necessary.

 

There is sometimes a battery warranty separate from and longer than the car warranty. Are there any recalls/TSBs/updates to the car that haven't been done? Has service been done at the selling dealer? If all else fails ask for some goodwill help from Toyota.

It is highly unusual for a failure of the hybrid battery this early. 12v common.

How is your car used? Short trips always? Max temps?

 

Yuck, sorry to hear this, zeuloa. This is the most premature hv battery failure I've heard of. If the dealer says Toyota won't help, take it up with corporate yourself. I'll be stunned if they don't step up in full. They tend to be quite fair with goodwill.