2nd Gen Prius 12V Battery Installation Step by Step Tutorial
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- เผยแพร่เมื่อ 18 ต.ค. 2024
- This is a step by step tutorial on how to replace the 12V (NOT the hybrid) battery on a 2nd Gen (2004- 2009) Toyota Prius with Smart Key capability.
The replacement battery used in this video is:
link has been been removed because amazon threatened me to remove the link
THANK YOU from a 72 year old woman who needed a little guidance. Knowing the socket sizes was a GREAT help! THANK YOU AGAIN!
Did you install the replacement yourself? If so, congrats, you’re an expert !
I read almost all tube posts about Toyota Prius battery change. This one is the exact best one!
One year later and still the best guide on YT for 2nd Gen Prius battery removal! Thanks for taking the time to do this a year ago! You’ve helped so many people, including myself, save money!
I just finished installing a new 12v in my 2009 Prius. I would not have had the confidence to tackle the job without this excellent video. I noticed a couple of things that may help others.
1. The bolts are not all the same. I recommend watching the video and labelling holes and bolts to be sure what’s coming out of a specific hole is exactly what’s going back in that hole. Maybe it’s no big deal, but Toyota must’ve done it for a reason.
2. I used the same replacement battery and have the same issue with the cover not fitting. After everything was in place, it struck me that it may be possible, as soon as you put in the battery, to rotate its handle down to the far side (toward the car fender). It looks like there’s enough room there after everything is installed.
Again, this is a great tutorial and aside from my back aching from all the bending, I am very glad it allowed me to tackle the job myself.
This video was great and saved a bunch of coin in the process. The only recommendation I would make is do not reconnect the negative terminal until the battery is bolted into the holder and the positive terminal is tightened in. The reason is the positive terminal is almost exactly 1 wrench length from a metal piece on the rear and it is possible to short circuit the battery while tightening positive terminal. I found that out the hard way but things seem fine... connecting the negative terminal at the end would avoid this hazard.
Another tip: when you move the negative cable from the old battery, orient the bolt so it's facing outward. On my Optima install, I oriented the cable so the bolt faced toward the RR fender wall. I wish I hadn't because undoing the battery terminal is easier than unbolting the cable at the rear steel panel by the taillight assembly.
@booi dumb question but which is the holder for the battery? Can you tell me which time frame it shows the holder?
Exactly...its amazing how so many people do it backwards. neg last.
I wondered about. Thanks for the advice.
Exactly what happened to me! Seems to be ok anyway but scared me big time! Does this damage the battery long term?? Otherwise this video is GREAT HELP!
Excellent tutorial.... Just replacing the Optima 12 volt battery after ONLY 11 years and 6 weeks😀 You bet I bought another one...
Very good instructions. The best step by step maintenance I've seen so far, everything is very appropriate and clearly explained. I've been an aircraft mechanic all my life and appreciate how nicely this was done.
Very useful! Thank you so much! Remember: you need 10 mm and 12 mm socket. Also the battery vent pipe may not fit some new ones because the hole is smaller. Easy thing to do: just take the plastic top from the pipe and put it the other way around. Other side is smaller. Worked for me.
This comment saved me last night, thank you so much!
Thank you from a guy who just did this in the auto parts store parking lot. Gave me a lot of confidence
Very nice clear tutorial. Only criticism is that the locking mechanism for the "trunk" cover turns 90 degrees rather than 45, but most folks would figure that out. Please do more Prius tutorials. You did a nice job with this one.
You are absolutely right. I have no idea what I was thinking, brain fart?
45 is half of 90 so it’s half way round not all the way round LoL an easy mistake - I had to re-check my brain on that one too :D
Great video!!
I just finished using this tutorial to replace mine. I really appreciate this video because its literally a step by step process. Hard to find a clean, clear, step by step tutorial on anything these days. Thanks 💪💪
dont use the word literally in that context. of course it is literally.... do you think you would have a figurative step by step process?
This the best tutorial I have ever seen. No music. Thanks.
One of the best instructional videos I've seen. Thank you.
Thank you so much! My step mom was worried and I was able to help her out with your tutorial. Your instructions were on point.
Great video! I changed my battery today in about 45 minutes. I only had to watch your video once and everything went perfectly. It turns out my old battery was original to the car (11 years old!) so I had to get a little help with some bolts that were really hard to turn but other than that, I did it all on my own. Thanks!
My wife had to keep boosting her battery last 2 months, i thought hybrid battery had problem as it was showing triangle symbol, i bought OBD2 hyrid battery passed so after replacing the 12V battery problem solved we saved 1K at least. Thanks a lot for the video brother.
Did you have to clear the codes
Thank you for not spending three minutes showing off unnecessary animated title effects with irritating music while telling us what the video is about. Your title tells us we are in the right place! Take note, wannabe producers: it's what you leave out that counts.By getting right to the point, you avoided the biggest mistake that most people make when producing a TH-cam video. Well planned and executed! Nice.
Very helpful. Clear and complete. Well done! I used these instructions to change my 12V battery on my 2007 Prius.
Fantastic video on step by step battery replacement. Very well done. Thank you!
Thank you so much for such a thorough and clear walk-through. My daughter’s 2008 Prius needed a new battery after nine years - I never would’ve done it without you! Took me over an hour. That’s because I took my time and watched your video several times along the way. Thanks again - huge help!
Great step-by-step instructions. Used this video more than once and it is so helpful.
Best Video on TH-cam for Prius Battery Replacement!
In case you don't want the strap, it very easily is removed by sliding first one side down to the bottom of the battery, and then the other, and it's off. I prefer it that way, and the strap can be placed somewhere for future use if the battery needs to be lifted out and carried. And as others said, Thanks! Great video!
Thank you for making this video! Here’s to hoping the car starts.
Excellent! Thank you! Note--"45" (should be "90") degrees; "replace the spare battery (should be tire) cover". (ed) 1:02 Take all metal jewelry (rings, chains) off--If they touch a wire or terminal, you might end up with a ring of molten metal on your finger. Finally, don't put the battery and brake controller box screws in until the vent side screw is in place; the reason is that, if you tighten the battery and controller screws, when you're putting in the vent side screw, you Will drop it and it will go right behind the battery, requiring removal (again) of the battery. (Don't ask how I know!)
I hear ya.
Thank you. This made changing out my 12V battery a snap. I did it exactly as you suggested. 😀
Thank you for making this vid! I had done the job 8 years ago and had completely forgotten the process. Definitely more work than a ‘normal’ battery replacement but not too bad. About an hour and all done.
very nice with great details! Only suggestions are to disconnect the battery ground first and then last upon battery re-install to avoid any accidental arcing. I have made this mistake on normal vehicles and this is a very tight work space with the prius. I like rubberized nitrile gloves as well, for hand protection and in case of accidental arcing. It goes quicker with cordless drill and proper sockets, but manual tools work fine.
Thank you for the step-by-step! Well done. I replaced my 8 year old OEM 12v. with an Optima and the Optima lasted 4 years and 5 months. 8 years vs 4 years 5 months. Your experience may be different.
Just changed the battery in our 2008 Prius this morning. Your instructions were spot on!!!! Thanks!
Did mine today and saved some bucks. Thanks a lot.
Very helpful! When I found a battery online (at a local shop) it said it should be professionally installed. But thanks to your video, I was able to do it myself.
Just completed the install of new battery, which was a piece of cake thanks to this concise tutorial. Much appreciated!
NOTE TO THOSE IN THE RUST BELT:
Don't bother to remove the little control box, the bolts go through the floor and they may be rusted. If you're using an extension, I had no problem getting to the one bolt between the battery and control box. If you do want to remove it anyway, spray pb blaster on the bolts from above and below the floor. I didn't and sheared one bolt head clean off.
I can't thank you enough for this perfect step by step guide. My mechanic knowledge is minimal at best and it only took me 30 min to replace my battery.
In case this happens to you - my initial attempt to start my Prius after installing the new battery the voltage readings were still in the 11's and would still only shift into neutral which had me worried. I powered it off and powered it back on and everything worked perfectly
I have a 2005 Prius. Bought it brand new and still have it. I've always hated it. My spouse made me get it. And it is pretty damn sad that I have this video saved and have to re-watch it each year because the damn battery doesn't last. Oh, and don't get me started on that stupid hybrid battery! Anyway, thank you for this video. It has really helped me each year.
Strange, my 12v battery lasted 8.5 years in my 2008 Prius. Maybe yours has a different electrical issue?
@@emailjwr We just don't drive it enough. That is the problem.
@@DR-mq1vn Charge it at home frequently. You can use from fuse box to charge. Open fuse cover by pressing cover's front narrow tip hook, "front to back" and lift. Do not try to claw out 2 rear hooks. Then swing open red square cover and clamp at positive there. Clamp nearby bolt for negative.
Thanks for the video. My battery was nearly 11 years old and needed to be replaced. I took one look at the set up and thought "no way". After watching your video I gave it a shot. It took about 30 minutes, saved me a trip to the dealership, and I'm guessing at least $80.
I couldn't have been able to replace my daughter's 2008 Prius battery without this. Thank you very much.
Just followed this tutorial and my Prius is up and running again. Thank you!
Textbook quality tutorial. I love it! Thank you for taking the time to make this.
Well done. Very precise and clear! You saved me tons of cash and helped me learn to maintain my Prius!
I agree with others in starting the video with a tools rundown
But altogether the best instructional battery video on TH-cam I've found!
The best video I've seen for the Prius 2nd gen!
Methodical and very easy to follow.
Thank you uploader!
Swe Kiwi 23rd w
agree best vid on this by far
Dude, you’re awesome. So helpful. I do have a question though. What does the brake control box do the one by the battery? What is that for? Thanks for your time you’re very knowledgeable. Keep up the good work and thanks again you’re awesome.
Replaced my mom's battery on a 2005. Very smooth task. Great How to video. My mom had her battery replaced about 3 years ago by Firestone and these Jagoffs put a smaller battery in her car and in the pass year the car wouldn't start and needed to jump started. The key thing is make sure you have the right battery if it's a smart key.
Very clear, a little slow but nothing a little speed boost (or patience) won't solve. No unnecessary filler or wasting time that a lot of tutorials have so Thank You! Also thanks for telling up front the bolt sizes!
Thanks for this very good instructional video. One of the best step by step videos I've seen.
This is so many more steps than my older cars I used to work on
Clear, full description, and though a bit slow, is very through. The two “nice to do things” are worthwhile: remove control box and disconnect negative wire from chassis rather than from battery.
Man thank You very very much from the bottom of My heart as another guy mentioned You saved Me as well 160$ dollars!!
Even bigger of a deal during the corona lockdown times!!
Blessings to You Your loved ones and the entire sharing community!!! Thank You
I don't know how common this problem is, but I found a big puddle under the battery and also on the other side of the car in the same place. water gets in between the body and the bumper. Check for water ingress and rectify any rust before fitting new battery. My solution to prevent water pooling in the bottom again is to leave one of the rubber grommets out so the water can drain away. Great video, very clear.
Super job, allowed me to save a boatload of money by making it a simple DYI job. Step by step was invaluable.
Just replaced my old yellow top battery with that I got in Aug 2017 with another yellow top in my 2005 Prius , thanks so much for this video . It was easy to follow and so helpful !
Can't begin to say thank you enough for the great explanation and clear videos. You couldn't have done any better.
Oh right I see why people are complaining! Toyota have made some electronics or electric connector right in the way in this model ! Way to annoy peeps! I just got the gen 3 Prius, doesn’t have that gubbins in the way. I took the battery out, and the dire warnings about ‘all your settings will go’ are about what I don’t know. the system had to reboot when powered-up first - I mean, that it?! Nothing amazing I think it’s the mpg and so on. The mileage doesn’t disappear and nothing major happens. I did have a small motorcycle battery attached the entire time though, at the front, which maybe made a difference, but it was DRAINED after a couple of hours! Courtesy lights very dim etc…
So what I did was this: first I scraped and sand papered the mounting bolt and bodywork TO THE METAL where the earthing strap goes! I also made the power off by disconnecting the battery and my little motorcycle battery, and then WD40’d the heck out of the front fuse box under the bonnet (hood) to the rightmost side, push the clicky bit of the front connector IN a bit, then lift the front of the black cover up, then the back edge kind of just goes backward to come off. Watch when replacing it because that back edge is the first to be connected and it LOOKS like it’s on but it ain’t. Once the front is on, MAKE SURE the back is on, or take it off and do it properly, just so it doesn’t drop off or rattle during driving.
Under that cover, are a lot of the main relays and fuses. I liberally sprayed the heck out of it with WD 40 knowing I had all 12V power off, and wriggled the relays I could not pull out, and pulled out every fuse with the little white special tool, buried inside every fuse box! Look for it, you will see its little white end only 1/4” wide or so, pull it out. Put it back later!
So every single fuse and relay, got wriggled and scraped out and back in or something like it. The big thing saying ‘integrated relay’ or something, just spray it, there’s just a lot of connectors in there I think. I couldn’t get it out. There’s one really stupid part, there, beside the fusebox under the bonnet/hood…it’s like Toyota MEANT to put a rubber shroud over a collection of wires but just did not?! I will make a plastic cover out of a top of a milk carton, or oil carton, or from a textile off of some old waterproof or welly boot, etc, and like cut it in a circle, then cut a line into the middle of the circle, and cut a small hole dead centre so this shroud goes around those cables. Then just use staples or tie-wrap might be better not conductive, to close the DIY shroud up again.
It’s obviously NOT meant to be open to their, and mine was manky with dust and grease all over the back of the contacts where the wires go into that connector block. Maybe later models had it fixed, but my 2010, this bit looked unfinished! So…I think that’s all I did. I did that rear earthing strap connection to the body, scraped, and AFTER it was tightened down, put a smudge of thick grease over it - I used the toffee-like brake grease. But vaseline, or even frankly that wood filler-glue in tubes, would probably do it. Stopping rust later is all. I also cleaned the battery terminals, despite the fact the battery was new.
For Brits, here’s the battery company I used, via ebay, really good, they do Prius batteries for some reason, the 12V ones…EFB(AGM) STOP START TOYOTA PRIUS 1.8 06/09-12/15 GS BATTERIES AUXILIARY BATTERY - ‘numberonebatteries’ they are called on ebay, and it’s a slightly better spec from this company in Luton, England, than the standard 45 Ah and 335CCA so I recommend that, plus a little device for showing you the voltage by plugging into any cigar lighter that goes live, it even has a switch on it, and two USB charge points come out… from Amazon … www.amazon.co.uk/dp/B098JF13NC?psc=1&ref=ppx_yo2ov_dt_b_product_details No I am not on commission but I spent ages ploughing through garbage and would save fellow Prii owners (!) from having to do the same.
Hold on, I found the item number for that battery in case it’s easier to get it that way… 304040496353 There. I began looking for a 12V battery, believing as usual there’d be dozens…NO there are not. There’s the PERFECT one I show you here, then there’s like TWO others, and the one I showed here, is HALF the price at least. The others were Yuasa and Toyota I think. So, thanks for this vid, and I hope the deets I give, save someone some work and aggravation too. Take care all, we’re trying.
Thank you for such a highly detailed explanation! I've never worked on my own car before and this gave me so much confidence.
Thank you for making one of the most clear and concise instructional videos I have seen in a long time. This was very helpful.
This is an excellent tutorial. We just walked through the steps and replaced the battery without any trouble. BTW--much cheaper than going to the dealership. I had no trouble getting a battery locally, at Batteries + Bulbs. Mine is a DUR-9A51P, fully warranted for four years. $209.99. Thanks for taking the time to do such a great job on the tutorial.
Worked great! One thing I found is that the small trunk floor panel over the battery is actually held in place by a plastic tab. Which breaks away the first time you lift it up and away as you show (and is much easier to remove once that tab breaks...).
Thank you! This video was a lifesaver! Did not have to have the car towed, replaced the battery in our garage and now back in business!
Fantastic video. I was able to change my 2008 Prius battery without issue. Thank you.
Did you have to reset anything else when you turned the car back on?
Excellent Video, I did it myself with only a few stops and starts... mostly tool related. I kept losing the 10mm end down into the back of the battery well. I should have gotten a 12 pack of them! But I retrieved them when I took the battery out. Old fumble fingers was the only problem.
Thank you for this. Easy to follow. Just did my battery with this and all went great Hardest part was the pointed screw on the vent but everything exactly as directed. Car starting again.
I’m about to try it! Thank you very much sir for your kind, specific, detailed description and explanation! This was so kind of you!
How did it go?
@@vegan753 no answer and a chick did it so let's assume it didn't go well 😂
@@totalanonymous8180 😂😂😂😂😂
Thank you for the very nice, clear and concise instructions. And so frustrating when the audio was too low or the camera work is poor. Yours is excellent all around
I'm mechanically inclined but was nervous about changing the battery on the Prius because I'm still familiarizing myself with Hybrid-type vehicles.
Definitely saving this so I can reference when I go get a new battery !
Excellent video, thank you!! My only suggestion is to connect the positive lead on the new battery first. ⚡️⚡️
Great video. Excellent step by step. Note that the two turn knobs are turned 90 degrees, not 45 degrees.
Thanks for this great video. You really helped a newbie out
This is an incredibly comprehensive video. Thanks for producing such thorough work!
Thanks so much for the incredibly helpful tutorial.
Finally had to replace the battery after 13 years and your video was Indispensable!
Especially putting everything back together we had to stop and come back to rewatch a few parts that saved us a lot of frustration.
Thank You!
Excellent video! I was sifting through paper and trying to understand the instruction then I found your video and it made my life easy. Thank you
thank you for the help I needed. Cost for such a job is more than we want to pay for . Again thank you
This was super helpful! Thank you for putting this up. The recommendation on installing the negative terminal makes it so much easier.
Perfect video, very helpful! thanks a lot, Sincerely
This saved me about $150 over having the dealer replace the battery.
Tell me the amperes of the battery u put?
Can you believe the gall of someone willing to rip you off like that! 🤮
Everything on this car is an irritating pain in the ass. The passenger side headlight bulb is laterally almost IMPOSSIBLE!!
@@desertmav8632 That's a guaranteed path to lots of swearing and shredded hands. I wonder if it's easier from below when the cars on a lift in the shop.
@@desertmav8632 really? I replaced mine with no issues. Is it the HID one?
Excellent, video, thanks for posting it!
From my experience following the steps in your video:
You might want to start future instructional videos showing all the tools needed, including specialty tools.
For instance, for removing the nut on the battery hold-down bracket, you need a deep 10mm socket or 10mm box wrench. Also, for removing/replacing the bolt that holds the hybrid battery exhaust duct to
the side of the car, you either want to use a magnetized 10mm socket, or you need to do final removal and initial reinstallation of the bolt by hand; otherwise, it will most likely fall out of the socket and drop into the bottom of the battery compartment. This is not really a problem when removing the old battery, because you can retrieve the bolt after you take the battery out. But it WILL be a problem if it falls while you
are trying to reinstall it after you put the new battery in. Since I didn’t
have a magnetized socket, I used a bit of masking tape to hold the bolt and washer in the socket before trying to reinstall the bolt.
I think I know why your used Prius did not have the red plastic cover over the positive terminal assembly: the previous owner probably broke it while trying to get it off.JIf you don’t have someone to show you how, and you aren’t an experienced DIY’er, the method of removing it is not easy to discover. I got lucky. It’s not a necessary part, anyway.
The cable connections were proving so difficult to remove, I was concerned that I might break something, so I decided to try to
complete the job with all three still connected to the positive terminal
assembly and control box. It worked out fine, as the cable is flexible enough to swing the control box and positive terminal assembly out of the way while still connected to the cable.
So good! Just followed along and got mine changed out. None of the placed I could buy my battery were even willing to touch a prius.
You saved me a lot of time and aggravation. Made it a breeze. And thank you for pointing out that the body screw that attaches to the plastic vent had different threads. After i tore this all apart i couldn't remember where that one went. Watched you reinstall the vent and i was good to go. Kudos.
Thanks! Awesome and clear tutorial. When I removed my dead battery, I found a puddle of standing water! I drilled a small hole at the deepest part and drained it out the bottom.
Just changed the 12v on my 2008 Prius with 177K miles. My second battery change. Thanks
Thanks, this was very helpful video and helped me to change my 12V battery in my 2005 Prius.
However, there were 2 things missing from the instructions, or points to make that would have saved me some time.
1. 8:04 There is an edit to when the duct is all screwed back in. However, what needs to be mentioned is that for some reason the duct does not align with the vent fitting on the side panel of the car. There is about 2-3cm or so which the duct doesn't fit onto. I can't even figure out why this is the case, but I realised that this was designed like this. So you needed to mention not to worry if the top of the duct doesn't fit as I thought I was doing something totally wrong and it took me 30 minutes to figure this out.
2. 6:58 You might want to tell people to use an insulated torqueing wrench when reconnecting the two terminals. I used a metal one and while I was reconnected the positive as soon it touched the car body it earthed and sparks flew everywhere. Hopefully the battery has not been damaged.
Otherwise, an excellent video and very helpful.
Very clear and easy to follow directions. Was able to easily switch out my battery following this video. Thank you!
These directions were perfect, clear, complete, concise - THANK YOU.
I just did this and this guy is right on...I did a few minor things differently but I'd follow this guy's direction.
Thank you for this video! I don't know much about fixing my car, but this video gave me the knowledge and confidence I needed to get the job done successfully!
Your details really helped to get me thru this, You are an excellent teacher for the DIY person
Thank you so much for the ORGANIZED step by step content!!! You sir, should be a teacher!
I am so happy to have found your video! Your explanations were simple to understand and easy to follow - even for this non-mechanical guy. Thank you so much for posting this video!
Great video. Very detailed with clear instructions.
Saved us $100+ on labor. Really appreciate it. Thanks
still works! thanks
Marvelous description which got me through it. Much clearer than others I looked at. Thanks!
Extremely helpful. Thank you so much for posting this. Saved us a lot of money by not having to pay somebody to do it for us.
This was awesome. I just replaced my battery and saved a ton of money. Thanks for making a great video. There were no surprises thanks to all your tips!
That is Awesome Bro!! 🙏🏾!
Excellent video, thanks.
Great video, I just changed my battery, and your instructions were right on. Thanks, you saved me $$$ by no needing a mechanic.
Thank you for that excellent video. Also, thank you for showing the top of that battery. I was able to order from Amazon, the correct replacement for my Gen II Prius. Two thumbs up to you.
Thank you for this video. You really did a great job capturing some of the installation realities to be mindful of, like that pointed screw. This helped me get the job done. Rollin'
May god bless you thank you for helping ❤️❤️❤️❤️
Great video. Just one thing. Replacing the pointed bolt that holds the duct is not easy. It's best to bend the obstructing fiber panel right out of the way, hold the duct in position and start the bolt by (left) hand. If you try and start directly with a socket, there's a good chance the screw will drop into an inaccessible place. It's not just me. A dealer replaced the battery years ago, and I found a pointed bolt in the battery well!