Can a Prius jump start a another Prius?

yes, and the jump point is there for a reason, no problem

just don't cross polarize the -/+

 

or e;lse youll be part of a PC member's signature

 

If you reverse the cables, even for a second, you can do $4000 worth of damage.

For $40, you can buy a jump pack with auto polarity protection so you have no worries. (and it will start other small cars)

www.amazon.com/SUAOKI-Portable-Flashlight-Gasoline-Certified/dp/B07R5FKPZJ

If you plug it into a USB port, it will charge any time the car is on, and power a USB device even when the car is off.

 

Leaving chargers plugged in to the Prius will cause problems.

 

What kind of problems?

 

yes, you can even use the jump points on both cars, and you don't have to turn the donor car on

 

I prefer a jump pack, that's all I ever use. Toyota cautions against using the Prius to jump start another vehicle. That said, I think you could do in a pinch, just be careful.

Look in the Owner's Manual for the proper connection sequence. The object with this sequence, is to connect the positive wire to both vehicles first, have it done, secure. Then connect the negative wire.

What you DON'T want to do, is to connect both positive and negative wires to one battery, then be wandering around with the other two ends in your hands. All you have to do is inadvertently tap them together, and you've shorted out the battery.

Here's screen grabs from an Owner's Manual:




Have to admit steps 5 and 6 in the above have me a little bewildered. Not 100% sure which car they're talking about. Again, having a jump pack keeps it simple.

 

If it were me, I would remove the positive cable from the donor vehicle and then jump the other vehicle from the donor battery position to the engine compartment jump point in the other vehicle. That might be overkill, but I'm careful like that. Also make sure when you connect the positive cable to the engine compartment jump point that the clamp face that is connected to the wire, not the other clamp handle, is in contact with the jump point plate in the fuse box. The jump point only has metal on one side, the side facing you. This is a heck of a thing to explain without pictures. As others have recommended, a jump pack with polarity protection would be the ideal way to do this.

 

Mine has an extra LONG bolt sticking up about a foot behind the + jump point just for that negative connection.
NOTE: The "donor" car should NOT be running during this process......because if you make a mistake that would make it more likely to FRY the good one too.

 

Any combination of jump point or at the battery, whatever is most convenient. Also, to jump a Prius, you don't really need wire as heavy as cables made for non-hybrids. Main thing is to triple check to be certain polarity is correct.

 

FWIW, I attempted to jump our 2010 (using a portable jump pack) using the jump point under the hood without success.

I then attempted the jump by connecting directly to the 2010’s 12 volt battery in the hatch, and the car starts right up.

IIRC, that was suggested somewhere — though it hardly makes sense.

I also used the pack the jump my 2016 once - crazy how quickly a phone and iPad and air conditioning can drain the battery while parked.

 

That STRONGLY suggests that your connections at the "jump points" were not right.
The most common mistake is connecting the negative cable to something that is NOT a good ground.
Also, some clamp ends have the actual connection point on only one side of the clamp.

 

Yeah I think the under-hood jump point has copper plate on one side, and plastic backing on the other side.

 

And then if your jump back has aluminum gator clips and aluminum cable materials, that will cause current resistance impeding the amperage flow affecting jumping capability.

 

Not enough to be significant, it won't.
Not in "normal" use, at least.

 

It would in a high current draw situation. The draw from the "make ready" computer boot-up sequence wouldn't be that significant, but add in a nearly exhausted 12V battery and it could.

 

My users manual states to jump start your Prius, in this exact order:
-connect the positive cable to the + jump terminal in the fuse box (exclusive jump starting terminal) under the Prius hood
-connect the other end of the positive cable to the positive battery post on the other car
-connect the negative cable to the neg battery post on the other car
-connect the other end of the negative cable to the ground stud at the left side of the Prius engine
After the Prius starts, disconnect in the exact reverse order from which they were connected

It then specifically says, "The exclusive jump starting terminal is to be used when charging the 12V battery from another vehicle in an emergency, It cannot be used to jump start another vehicle."
So, use the 12V battery terminals in the rear hatch area to jump another car. If incoming to your car, use the front, easy access terminals. If outgoing, use the rear 12V battery.

 

The current is the same at both ends, so I can't see your logic. They don't want you jumping another car, period. Odds of success would obviously be better trying to jump another Prius than a non-hybrid.