Another thing to note: If you are parking the car for a week or more you will want to disable the RF ID keyless entry system. You do this by toggling the button under the steering wheel. With my 2008 Prius the battery will get low after a week. But if I disable the system when I park the car, the battery is fine even after 2 weeks. Note that this only disable the feature that unlocks the door when you touch the door handle, pressing the unlock button on the key FOB still unlocks the door.

Thank you Peter. Believe it or not you are the first person that actually showed how not to destroy the engine compartment fuse box trying to get in it. Not even the Toyota manual shows HOW it opens. The just point to it.

Working on Prius #4 in our family: the last one was destroyed by a driver who thought driving with uncontrolled seizures was okay. However, I replaced the 12V battery in my wife's first one (a 2002) in 2013. Yes, it was 11 years old. We live in a cold environment; when we lived in Phoenix I never got any car battery to last through three summers. Anyway, I learned to test my battery (I bought a tester for about $15 at Harbor Freight) every year. There are no warning signs at all, except some things might get flaky since the battery stabilizes the 12V inverter. My 2002 is now my son's; it has 400 CCA now so it should be good for a few more years. (We rebuilt the original hybrid battery last month, at 210K miles and 19 years. Not bad for a first gen!) Our 2014 is still above 600 CCA. Life is good.

Thank you. I own one of this and I didn't know that I can jump start it from those points. I always tried from the truck, a lot of work to do. Today I neded an ideea and I find this video...

Peter I love to see simple fixes . I’m good with my pruis , but love to see Peter explain thing .

You don't need to crawl on your belly like a reptile to open the hatch if the battery is dead. I drained my battery by leaving my dome light on. I hooked up a battery charger where Peter showed you under the hood. This supplies enough power to open the hatch. Then I removed the battery, took it inside and charged it. It's been working fine ever since.

Please don’t stop 🛑 filming these videos, as these are worth of valuable information ( pure Gold ) as far as I’m concerned...

Another informative toyota video. Your channel is one of my favorites. thanks Peter.

Thank you Peter ... you do a very good job explaining troubleshooting problems.

Very helpful. I saw the older video on this topic on your channel and then saw this to get more information. Once the battery has reached its lifespan, then we must replace it. Shalom. I pray everyone is doing well in Jesus’ Name.

Seems odd that it cannot use the big battery for starting. Different voltages....but why. Also, my personal best is 8-1/2 years from a Truestart.

Thank you Peter. Good stuff.

@Toyota Maintenance. Thank you Professor Peter for today's lesson. I have a question. How many Prius owners come to your shop asking you to service their engine coolant and also service their inverter coolant? I'm guessing not that many. Hope you and your family stay safe and well.

Thank you. Dash panel is out. Toyota dealership ship said it will cost about 1600_1800 to replace. But checked and said everything else is ok. Don't have the money yet but now the battery won't stay charged, is this part of the dash problem.

The first time that I replaced that battery in my 2005, the battery lasted 9 years. The next one lasted 4 years.

We just looked up our last battery change and it's 10 yrs old and seems okay. I have a jumper box in the back just in case.

"Coolant Heat Storage Tank" would always drain a small amount of battery power, if you are not using the car for over a week or two, it's better to have a battery maintainer hook up to the car auxiliary battery.

I owned a 2008 Prius a nice vehicle. I sold it 4 years later I was worried about batteries not the starter battery and frankly thank goodness for fracking. With fuel cheaper I bought a F-250 4x4 with a 6.2L. Still use my 1999 Toyota 4x4 as a daily driver. 241,000 miles and still running.

Replaced the 12v dashboard lights all came back on. Won't go into ready mode. Cleaned the ground contact. Tried opening and closing the door as per manual. Help, was hoping you would be installing 12v and dealing with this issue.

Keep up the great videos my friend!

Can you please share what kind of charger is good for preventing the 12V battery from draining during long OBD2 or Bleeding prcedures? Thanks (Great Videos!!!)

I have the same car and replaced the 12v battery abot 3-4 years ago. Today my car is completly dead so iam thinkimg i left it on by accident and it depletwd the battery?? Everything was working perfect untill today. I even went to replace the control battery.

Sadly, way too many Prius owners ignore... Hold it... Toyota Maintenance! 😁😁😁 How is their 11 to 12-year old transmission fluid holding up?

84 month warranty not much good since it should be good until 1/22?

You save my life how to jump the car thank you

nice sharing of knowledge.. i have a question sir, do i have to remove the service plug before jump-starting a hybrid car? thanks!!!

you are a hero with all the shared knowledge

.... Does anyone know how to crank A Camry hybrid by hand at the crank bolt it's a 2015?.... We hit a water puddle Trying to check for bit piston rods Won't start either

I have 2010 prius, 150k miles. I put jumper cables under hood as described to open trunk and access battery. I tried to jump battery in trunk but I did not get anything when I pushed prius ignition start button. Bat terminals are pristine clean. My question is: must there be a minimum voltage sensed somewhere in the starting circuit activates. I read battery without jumper cables. It read 8v. I put it on a battery charger and not much improvement in charging it. The battery sticker born on date is J16. I presume that means Oct 2016. This is Aug 2021. I purchased from Toyota in Feb 2017. Will Toyota prorate a new battery because it hasn't reached its life since my time of purchase? Thank you in advance ☺

Video was very helpful and informative. Good job

I have a problem with my 2006 Prius I was driving and out of no where the acceleration stopped and then I pulled into a a neighborhood street and stopped after that I couldn’t put the car in drive or reverse only park and neutral I don’t know what it is ???

Greeteng's from U.K ,Pet! I recently did it:-i forgot my light on and the battery dain to 11.6 v and the car won't get in the gear ,staing to beutral only[ i do not know if this is realeaited to it or no..?] and alsaw i run out of gas, which i top it up whit a gallon, but not before i try to turn the engine on couple times. I try to jump start it but it won't turn on... Wat i understand that if a hybrid get to this position were you try to turn the engine on tree times, the car would automaticaly shot in self out, and it won't turn on untill you remouve a surtin' code. Is that true?? I always thoat thst in case you run out if 12 v battery or fuel you could rely on the hybrid battery to take you 2 miles untill the next petrol station or gatrage to sortit out....[ I gies is not the case....+ You can NOt Toe the car being a hybrif you xoukd damage the electric engine...] Alsaw i whent to check how much is a new Toyota 12V Replacement battery and thei tell me thei could order it for ...-238 Pound's [??] Shoking~!!!... Way The Prius 12v is soo expencive the a regular one , wat is the difference? P.S -I boght this 2008 Prius 1 month ago... Thanks.

I confess thinking I had a three year old battery that stopped working. It was actually six years old. I did not know there was a date sticker... it was covered with dirt. Hopefully I have learned this lesson... until I forget again. 😐

I have heard it is important to use an OEM battery to replace the auxiliary battery. Is this true?

I just realized how old my battery is, yikes it's a miracle it hasn't gone yet it's been seven years. Granted I haven't driven much the past two but still.

It's actually sounds funny that a hybrid vehicle needs a jump start.

I am Toyota all the way but replaced my Brother's battery this week it was 8 years old.

And.... DO NOT close the "trunk" with the battery disconnected, yea, don't ask :O

Anyone know what lights he uses to look under the hood, etc? Seems like he uses the same ones, over and over. And if you read this Peter, would you please let us know what type of magnetic lights your using to see? Thank you !

Thank you so much for the video!

Her TrueStart lasted longer than mine, 36 months and of course I couldn’t find the receipt. No key for the rear hatch? Old school rules for some things.

Thank you, Peter...I don't need to even concentrate on the "Fix"...just relax, and.................................ZZZZZZZ...LOL.

If anyone can make som e suggestions, my 2008 Prius keeps needing a jump. I checked anything that can be creating a current. I just added a new battery a month ago, the battery voltage shows 14.3. But by the morning It doesn’t start unless I jump it. SMH🤦🏾‍♂️

Can you put a video whit a Battery testing, please....

I thank you for help

Good luck 👍

Thank you

Thanks man! 👍👍

Petah, do you mean all Toyotas are not generally known for parasitic draw in the electrical or just the Prius? I like that you mentioned here the use of the strut nut for the ground because on a couple of videos I saw you jump the car on the outside with the Tundra and Camry you put negative on the negative and I really wondered why. Some say the battery could explode if gases are present.

Prius, the car i love that i hesitate to buy

Good video, thank you

👍👍

I absolutely can't get the cover off the fuse box!

Nice thank you

👍👍👍👍👍❤️❤️❤️❤️❤️

California sunny. Much better than north and central Europe

people lack common sense....seriously

i have an issue with my car, it doesn't start at all, no light of any kind, and i changed already the battery voltage and all is correct, so it start with a jump start but if i turn it off it doesn't start once again.

😂😂😂

All Toyota batteries I've had have been garbage. Aftermarket ones have been much better. But no battery will last more than 6 years.