Chris is Wrong, Don’t Try to Fix This in Your Car (It Can Kill You)

Chris is Wrong, Don’t Try to Fix This in Your Car (It Can Kill You)

rev up your engines this is a car that I
would never buy used but I would buy new Toyota Prius
now they’ve been making Toyota Priuses for 23 years now they’ve sold over 6
point 1 million of these Prius hybrid so far and if you know anything about
Toyota they generally try to perfect things over time they don’t throw the
baby away with the bathwater they see a problem they tend to fix it over time at the heart of the prius we look under the good it’s different than most car it’s got a Hybrid Synergy Drive it’s got a gasoline engine in
conjunction with electric batteries and a generator and it’s just system that
makes it a good new car to buy but a bad car to buy used with higher mileage not
as naughty as it sounds think you better gas mileage in stop and go traffic and in town that you do on the highway they regenerate power when the car is
slowing down it uses generators in the braking system to recharge the battery
and then when you take off it uses the battery to help boost the power of the
vehicle now if you drive like a real snail you can go a little distance here
and there by just having it in an electric mode but as soon as you really
step on the gas to take off the gasoline engine up turn on not the exception to
this is the Prius prime it was a plug-in hybrid you could run on electricity
alone or use the engine but really the electricity max it would gonna be about 25 miles so it really was still just a hybrid gasoline-electric but in order to
get this phenomenal gas mileage in town the gasoline engine has to sync with the
computers and the battery and the electric motor inside to make it run
right you can see on a dash here it tells you what’s happening how it’s
charging there’s various levels that you can check out on the displays you can
see here there’s all kinds of information that you can get it’s kind
of wild if you’re really a tech person you know you’re gonna have fun playing
around with stuff here we go here it’s showing how it’s charging what it’s working on it
needless to say it’s a very complex computer on
operation but in a case of this 2011 hey it said over a hundred thousand miles
are pretty much trouble-free operation so far but with a disclaimer here up to
today now it’s got a problem with the regenerative braking system that can end
up costing a small fortune to fix aren’t you seeing a use one has over a hundred
thousand miles on it that can often be a big mistake
that’s one reason they’re so cheap to buy used I had a customer a couple of
years ago buy used one with one hundred and forty
thousand miles on it for fifteen hundred dollars they thought what a deal until
the generator went out now on a normal car my old Celica the alternator charges the battery I can replace an alternator on one of these things for less than a couple hundred bucks but not so on this
Prius because it doesn’t have an alternator it’s got a generator it’s a
generator motor it generates electricity and it run stuff and to make things even
more complicated these priuses are combination of alternating electricity
and direct electricity they’re very very very complex machines they’re not
something a do-it-yourselfer or corner guy to gas stations gonna be able
to figure out when they have a serious problem with the drivetrain system in
the case of my customer the generator which is hidden why inside here on the
transmission transactional assembly went bad and it was going to cost over fifty
nine hundred bucks to replace it because of this cramped design the engine and
the transmission assembly has to be removed as a unit and then you have to
replace the generator assembly transaxle put it all back in 59 er bucks for car
that the guy paid $1,500 for needless to say he ended up junk in the car he
didn’t bother fixing but on a positive side he had 150,000 miles on it or so
too so it lasted a long time for the original owner that’s why if you’re
gonna buy one of these things you buy it brand new you don’t buy a used one with
higher mileage now being a hybrid car it’s got a huge battery pack you take
all this crap out here then you can see the battery pack that’s
the side of it here you notice this orange when you see orange on this
that’s the high voltage electricity normal cars have 12 volt batteries now
you can stick your tongue on them touch them and nothing’s gonna happen but these are
over 200 volts they can kill you that is a particular turn off when you pull on
that switch you can shut the power of the battery off so somebody’s working on
a car they don’t like refute themselves as orange wires here same thing it’s
warning you that’s the super-high power you don’t mess with that stuff
you need serious electricians equipment for that stuff you gotta have inner
gloves and then you have to have outer gloves that are sealed young blow them
up before you test and see if they have leaks if they have leaks you throw them
away by another set and you have to have very expensive analytical gauges to work
on these things and if you were planning on testing these systems and working on
them yourself you’d have to buy all of that equipment the gloves and everything
but you’d also have to buy some very expensive gauges you need very low
testing equipment to test some of the circuits and also very high for the
200-plus of all parts of the system so you’d be spending thousands and
thousands on tools really it’s dangerous stuff I don’t advise so many
messing around with it unless they have a lot of knowledge of electricity now
going back to the battery pack they have a certain lifespan they generally last
quite some time ten years or more is not on uncommon on these things but when they do go bad then you’re in a real bizarre situation now the last time I
priced the battery for a car like this a real brand new one from Toyota was over
three thousand dollars now of course there’s guys that refurbished them
sometimes those cost as little as $1,100 a little there’s still a lot of money
but they’re not all that dependable realize it’s better and this is actually
a battery pack it’s a bunch of smaller batteries connected together so when
they go bad some of those battery cells go bad and there’s all kinds of
equipment and analyzed it would tell you which battery cells are bad
so which ones you’d have to take out and replace and solder back in even if
that’s done correctly and that’s a big if right there but
enough the bad ones are taken away you still got half or more of the old ones
in there that are old and wearing so they never last as long as the original
I’ve had customers get 12 13 14 years out of the original Toyota battery I’ve
seen people put in those refurbished ones year and a half two years later
they go bad and you’re back to square one another reason I tell people don’t
buy a high mileage used Prius you’re just gambling but in their defense for a
new one and maybe small engines but man combined with the electric motor
they are very zippy little cars they get up and go of course you have the image
of the Eco people and since the main driving force of this is the gasoline
engine it’s an it gets in cycle it’s a little differently regulated but it’s
got spark plugs and the air filter you can maintain it yourself like any
gasoline engine don’t be scared away by the idea that it’s a different
gasoline engine that’s just a design that started a long time ago and it was
never popular because even though it was more efficient and got better fuel
mileage it also had less power so they were never popular until now because
when you add the gasoline engine with the battery pack an electric motor
running it because even though this little engine only puts
out 73 horsepower the electric motor adds an additional 60 horsepower so it
almost doubles the power and that’s plenty of power combined to make this
thing zip along so in this case when you want gas mileage on a highway it’s only
running let’s see how many horsepower engine but when you want to accelerate
on a highway or accelerate and stop and go traffic the electric motor adds an
additional 60 so it almost doubles the horsepower and if you know anything
about electric motors they have instant torque so they’re actually better for
acceleration in gasoline engines so when you need to accelerate that electronic
motor gives it a ton of boost so there’s zippy little cars get great
gas mileage as you can see inside there are comfy they have cool designs up
there’s no regular transmission so there’s a big hole there and you go to
the back seat there’s a decent amount of room and then even a trunk
that’s good space because they put the battery mid there so you still got a lot
of room all around it for stuff you see what their split rear window in the back
they got top class and bottom glass so there’s no blind spots you can see quite
well behind some of these cars man they got blind spots everywhere but this is
well made they even got little peek holes in the left and the right so just
like a Swiss watch these things hum along quite well but exactly the same as
a Swiss watch when they do break you better start opening up your wallet
because they are not cheap vehicles to repair I’ve never had a single customer
buy a brand new Prius and not be happy with the vehicle but I’ve had a whole
bunch that bought them used and said I’m never buying another one of
these things cost a fortune to repair which is why I tell my own customers
when they’re looking for used cars you buy two used car
don’t buy a hybrid version you want a camry get one with just a regular
gasoline don’t get a hybrid there’s just so much complexity you get older it
costs so much money to fix and there’s very few guys who actually know how to
work on them correctly even more so than normal cars batteries go bad over time
even if they’re just sitting there sometimes it did you say yeah they go
bad even faster maybe you find a 15 year old Prius it’s only got 60,000 miles on
it still it’s probably not a good idea to buy one or pay much money for one
because that battery is probably gonna go out for any soon and if somebody
tries to sell you used one and says well I just replaced the battery last year
hey I’m assuming they replaced therefore one of these refurbished batteries and
they generally go out after a year or two or three they’re not gonna last 10
years or more like the original one did so if you are thinking about buying a
used one the battery has been replaced get the paperwork for it to see what
type of battery was put in it was a brand new toyota one perfectly fine but if
it’s a refurbished one yeah I’d look elsewhere myself and I and all
the truths about Toyota Priuses the good the bad and the ugly so you can make a
wise decision so if you never want to miss another one
of my new car repair videos, remember to ring that Bell


  1. My problem with Chris’s Prius battery replacement video is that he’s encouraging DIY amateurs to mess with high voltage electrical systems. This is not like a DIY brake job, only trained mechanics who understand electrical system should mess with hybrid batteries. It’s like teaching an amateur to rewire their house electric and fuse box with one video, just pay a professional to do it, it’s extremely dangerous if not done correctly: link to video in question:

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  2. Rich rebuilds uses a steak knife to work on telals! I dont want to hear all these fancy tools you need all you need is some popeyes and steak knives and your set!!

  3. Too many people like to make them out to be so hazardous to work on and they're not! I have done a few of those in my.

    Mankey keep stupid people away and you'll do good.

  4. The reason hybrid cars get better mileage in city traffic vs highway traffic is because electric engines are twice as efficient in converting energy into motion as an internal combustion engine so when the car stops its motion is changed into electric which is then changed into forward motion.

  5. 40,000 volt AC from the spark plug coil does more damage, than 200 volts DC! Even 480 AC hurts worse than, 200 volts DC. 🇱🇷😎🔥

  6. I made a fortune with the two Prius cars that I recently purchased for a couple hundred dollars for scrap I completely dismantled the cars and I sold the batteries for a grand apiece alone

  7. The liberals hate fossil fuels so much they have everyone brainwashed that depleting our supplies of  rare precious  metals for electric cars is better than burning rotted plant waste not to mention the energy it takes for manufacturing

  8. I agree with not touching high voltage systems. I work with vehicle electronics for a living and we never go anywhere near the high voltage stuff, it's just way too dangerous.

  9. You can keep these hybrids. The gas money you save gets spent ten times in repairs and the added cost of buying one of these cars. I just don't see the point of them existing at all

  10. Hybrid batteries can only be sold to professional mechanics not every day shade tree do it your self …i know cause I work at an auto parts store

  11. 200v is NOT high voltage, cec states high voltage is over 750v. Just saying as a jman electrician. Also it's not voltage that kills, it's amps.

  12. Prius tip. Unless you're filming a commercial with 3 people in back, yank out the center headrest to improve you rear field of view.

  13. If you buy a new Prius now, plan to keep it (or pass down to a beloved relative) until it dies (the Prius, not the relative). Not only will resale value be low because of concerns about current or pending battery/generator failure, but the battery technology will be much better by the time you would consider selling. Future buyers will still prefer paying up to buy new.

  14. 220k on my Prius, never had any issues (knock on wood). Bought it used with 65k miles, just a rule of thumb, always have a used car checked out by a technician before buying it

  15. I normally drive a V8 F150, but bought a new Prius for traveling for my medical issues. The car has really been great, and I have a good warranty from Toyota.

  16. Great video, but I have a couple of comments. I own a 2010 Prius and it's amazing that even with all of that glass, there actually are massive blind spots. You can (and I have) lost large SUVs in the blind spots. Second, I just refurbished my hybrid battery pack and it's actually not that difficult. A standard RC charger and basic tools were all that was required. You need an understanding of electronics and electrical safety, but the way the pack is designed, it's pretty easy to avoid the electrocution risk. Each cell is only 7-8 volts, making each module (2 cells) about 14-16 volts. This means that once you pull orange safety plug and bus bars, it's fairly safe. Pulling that orange safety plus essentially splits the pack in half, disconnecting the positive from the negative terminal. While I don't consider it a beginner DIY project, it can be done.

  17. Scotty can jerk off Toyota and their “high bread” cars all he wants. Won’t make me or any other normal person want to buy one.

  18. How well does a Prius' battery system hold up in cold climates (like Michigan & Illinois)?
    What about out west in the desert heat?

  19. Toyota Prius cost way too much to buy brand new anyway there’s no way in hell I would buy one. And another thing 99% of Prius drivers drive like idiots

  20. Actually Toyota company policy is to require all it's parts suppliers to supply the same parts CHEAPER every single year of manufacture so the older a model gets, the WORSE the parts get.
    And their latest cars are using parts engineered to fail.

  21. Scotty, I have bought 5 USED higher mileage Prius and have have nothing but good things to say about them. Almost nothing ever goes wrong with them. They are the best cars to buy used IMO.

  22. UGH!?! I bought my 04 prius with a 130k on the OD, I have 400k on it now and put roughly 1200miles on it almost every week with my courier business. Scotty, We get it, you don't like the prius….and WHERE ARE YOU FINDING LATE MODELS PRIUS WITH UNDER 150K FOR LESS THAN 5K!?!?!

  23. The red pull thingy is just a disconnect that divides the pack. Yes it protects you, but the half batteries are still live so just keep alert there.

  24. So batteries are scary and gas engines never turn to sh!t. Any refurbished used car would be off limits for me. Even a Tesla.

  25. Dear scotty you cant even work out how to open the bonnet yet your feel informed enough on the mecahics of a prius to advise people not to buy a used prius.i would happily buy a used prius with over 200,000 miles as they are very reliable and i know for a fact what parts will fail with milage .stop blagging

  26. the static shock you get from wool socks is over 10,000 volts. What you need to be careful with is playing with high amperage systems a half an amp can kill you, these things are probably well over 50 amps.

  27. The cells are not "soldered in" they are replaceable cartages, they plug in like a old video game cartage. When only bad ones are replaced the battery doesn't last long. It's best to replace them all with a matched set. The box Scotty was pointing at under the hood was the inverter. When that goes it's the same cost as a whole battery.

  28. Hi Scotty
    I came across a 1989 Toyota Celica 4×4 turbo (black), its gone 120k miles and seems to be in mint condition. Seller is asking 15k for it, what do you think?

  29. The only car mechanic that could equate to scotty is eric the car guy, but Chris does not stand a chance. Maybe the car wizard, the other eric and that iranian guy. But chris, doubtful.

  30. Skotty why dont you ever talk about the garbage electronic water pumps these 10-15 models have? I change 3 to 4 of these motors a week. Oil eating cars with garbage water pumps..

  31. Definitely don't hook up nitro to a prius. Tyler Hoover did and blew apart the engine seconds after the nitro kicked in.

  32. I just wish people driving these cars would floor it on the on ramp so they aren't merging onto the freeway at 45mph and slowing everybody else down. It's always the Prius drivers it seems like. Great, you get high mileage. Good for you. But now you've caused me to slow down this big rig and now I have to accelerate back up to speed. You just caused me to use a bunch more fuel. Just go!

  33. As Voltec "hybrid/ev" Technician – I approve of this message.
    Case study – Had a customer say he could replace his own HV battery… I told him to not be ashamed to come back when you're ready and bring extra money to replace the parts you may have broken in the process. Tesla aside – Volt/Bolt battery assemblies are the most expensive of the HV group. Ask a SPECIALIST. Just buy a Civic or Corolla.

  34. I work for a company that makes diagnostic, testing, and de-powering equipment for hybrid and electric vehicles. Our Chief Technology Officer gave a presentation on the hazard of working with the DC voltages present in hybrid battery packs. Part of his presentation included '…how long would it take to cook a hot dog using the voltage from a hybrid battery?' The answer… instantly. 
    No one other than specifically (and highly) trained technicians should ever attempt to service a hybrid vehicle; especially the battery packs.

  35. I realize you can easily have more money in the car than what it's worth on the market. I've also wondered the value in owning a vehicle with a complete reconditioned drivetrain at less than half the cost of a new vehicle. Granted you couldn't get your money back by selling it but if you drive it for another 100k miles and only spent half as much?

  36. The smug people that drive these cars think that they are doing something great for the environment. Hybrid cars don't last as long as regular vehicles, lithium batteries have a very high environmental cost and if you happen to live in one of the countries with lithium resources you will probably get American bringing some democracy to you shortly. Hybrids a a bumb idea. Put small diesels in cars and get better mileage.

  37. I bought my Prius with 175k and it now has almost 260k I’ve replaced like 5-6 battery modules at about 30-35$ a piece. Also replaced the inverter water pump and brake acuator. Ac is out and it’s still on the original brakes. I wanna try to get 300k out of it, I got it for 2100$ a while back. All “diy”maintenance including parts is probably right around 1000$ for me since I’ve had it over the past 4 years. I’d still never buy another hybrid again. I’d rather pay the difference in gas for simplicity.

  38. 5900!!??? Hahah they sale a whole transmission for 500 and it's a simple replacement😂😂😂 I got my for 900$ with 110,000 almost hitting 200,000 only replaced 12v battery. It's my 4th used prius I love them! Do your research.

  39. Hey Scotty I think your wrong and these are great cars to buy used. As long as it's never been wrecked and maintained they last just as long or longer than a regular Toyota. I myself bought a 2005 Toyota Prius with 150,000 miles for $1500 and drove it for 3 years and 80,000 more miles. I was in an accident on the highway at highway speed and the car saved my life. Over the course of ownership I only had to change the oil and replace the tires. If it wasn't for the accident it would still be driving today. I do have a suggestion for you on the car in your video. Did you check the 12v auxiliary battery? My 05 did the same thing when the voltage was too low on startup. The ABS and regenerative brake system will not function properly if the voltage is low. Being so high tech these cars are dependent on the proper voltage to run and operate property. I solved this exact problem on my old Prius by charging up the 12v battery. Even with these systems not working properly the car will still run and drive just fine.

  40. wife wanted a 2016 Peugeot 308. I have managed to dodge that bullet by dragging my feet thankfully now I have to come good on a car for her and im off work so no more excuses (actually thats a good excuse right there!) . What about a 2010 Honda Accord or Aurion? Are any of the late model Subarus any good?

  41. Driver: excuse me sir can you fix the problem
    Cornerman: yes I could fix your problem for $10
    Driver: here's the $10
    Cornerman:just get in the car and I will tell you what to turn the car on
    Driver: ok
    Driver: come back here with my money.

  42. $5900 repair on a car with only 110k miles? There goes all the money you saved on gas plus a ton more. Hybrids are junk, even Toyota.

  43. As a diy mechanic that fixes other peoples cars aswell I absolutely hate working on cars where the brace for the motor is up top stopping your engine bay access

  44. wish you made this video 2years back, bought 2 of these used priuses and both of them started having problem around 150k miles!! Waste of money

  45. These hybrid vehicles are a NIGHTMARE ! Don't touch them !
    That's where a good OBD2 scanner comes handy … you see any type of code, just run away !
    On top of that, a lot of these hybrids have CVT transmissions, and that's already a NO GO sign.

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