General discussion regarding the 2010, 2011, 2012, 2013, 2014, & 2015 3rd Generation Toyota Prius that can't be categorized in the Forums below. Thu, 18 Jun 2026 14:50:05 +0000 Thu, 18 Jun 2026 14:50:05 +0000 PriusChat https://priuschat.com/forum/gen-3-prius-main-forum.72/ Thu, 18 Jun 2026 02:35:34 +0000 https://priuschat.com/threads/fused-10a-load-from-battery-only-when-car-in-ready-mode-bad-idea.260402/ https://priuschat.com/threads/fused-10a-load-from-battery-only-when-car-in-ready-mode-bad-idea.260402/ invalid@example.com (Johnny Cakes) Johnny Cakes
Tapping off the battery would be very convenient. Assume use of adequate gauge wire, appropriate fuse, and tidy connections. Again, load will ONLY be connected when the Prius is in READY mode.

In this scenario, I'm thinking that the load is being carried by the DC-DC converter and the 12v battery is just a connection point, basically a buffer at best.

Am I looking at a small...

Fused 10A load from battery, only when car in ready mode - - bad idea?]]> 4 Wed, 17 Jun 2026 14:52:57 +0000 https://priuschat.com/threads/weird-burning-smell-coming-from-engine.260437/ https://priuschat.com/threads/weird-burning-smell-coming-from-engine.260437/ invalid@example.com (jarrad reddick) jarrad reddick 2 Wed, 17 Jun 2026 11:49:11 +0000 https://priuschat.com/threads/question-about-new-hybrid-battery.260403/ https://priuschat.com/threads/question-about-new-hybrid-battery.260403/ invalid@example.com (Gerald10) Gerald10
I got a new battery for my 2011 Toyota Prius (from greentecauto). How can i verify that they really installed a new battery?

here is a recording from dr prius with the new battery: https://youtube.com/shorts/jkJEJduvdEE
here is a recording from dr prius with my old batter as a comparison: https://youtube.com/shorts/HQzmBkwLqIY and...

Question about new hybrid battery]]> 25 Fri, 12 Jun 2026 18:32:30 +0000 https://priuschat.com/threads/help-with-how-wiring-works-on-inverter-pump.253776/ https://priuschat.com/threads/help-with-how-wiring-works-on-inverter-pump.253776/ invalid@example.com (sacklunch) sacklunch I don't have a Prius, but I'm using a gen3 Prius inverter pump to circulate coolant in an air to water intercooler on my JDM Toyota Vitz (using JDM ST185 Celica GT4 air/water intercooler, custom lines and radiator). See picture of wiring diagram for pump below.

Relevant points:
1. Right now the pump is pulsing, but from what I've read online it should be running constantly. Is this correct?
2. Currently I have GND (white-black) hooked up to chassis ground and +BWP (blue) to 12v...

Help with how wiring works on inverter pump!]]> 13 Fri, 12 Jun 2026 17:26:52 +0000 https://priuschat.com/threads/rats-nest.260020/ https://priuschat.com/threads/rats-nest.260020/ invalid@example.com (nudriver) nudriver 1. What damage can it have done, other than rats chewing wires? Car seems to run fine.
2. Can anyone tell how old this nest could be?
3. Will it cause damage that I pushed it off to the side?
4. What should I be asking a mechanic to do that won't cost an arm and a leg?

Separate question:
1....

Rat's nest?!]]> 36 Thu, 11 Jun 2026 22:29:25 +0000 https://priuschat.com/threads/2012-prius-w-280k-miles-high-pitched-whining-sound-while-motionless-idling.260340/ https://priuschat.com/threads/2012-prius-w-280k-miles-high-pitched-whining-sound-while-motionless-idling.260340/ invalid@example.com (viciousthinker) viciousthinker
when I noticed it last night I was putting gas in my car, and it sounded super loud from...

2012 Prius w/ 280k miles... high-pitched whining sound? while motionless, idling..?]]> 7 Thu, 11 Jun 2026 21:43:31 +0000 https://priuschat.com/threads/tpms-sensors.260349/ https://priuschat.com/threads/tpms-sensors.260349/ invalid@example.com (Gerald10) Gerald10
I'm looking for 2 new tpms sensor for 2011 toyota prius. whats good place to order it from for low price?
the number should be:
42607-33011
or
42607-33012

Thanks,
Gerald]]> 7 Tue, 09 Jun 2026 22:10:27 +0000 https://priuschat.com/threads/this-is-why-stop-leak-should-be-banned.260036/ https://priuschat.com/threads/this-is-why-stop-leak-should-be-banned.260036/ invalid@example.com (jimolson) jimolson "runs just fine...no problems".

Of course it rattled like a spray paint can with a blown head gasket, as most Gen 3's purchased from FB Marketplace do.

Replaced the motor with a different one rebuilt by the esteemed Scotty Partin, a trained Toyota hybrid tech in Rockholds, KY.

But after installing Scotty's rebuilt motor the vehicle still overheated on up-sloped...

This is Why Stop Leak Should be Banned]]> 39 Tue, 09 Jun 2026 20:51:13 +0000 https://priuschat.com/threads/confirming-proper-replacement-battery-pack.259287/ https://priuschat.com/threads/confirming-proper-replacement-battery-pack.259287/ invalid@example.com (Irish Rogue) Irish Rogue G9510-76014

Can anyone confirm that's correct (and that the other candidates are wrong: G9510-47060 -or- G9510-76012

Very much appreciate the expertise!]]> 10 Sun, 07 Jun 2026 23:44:56 +0000 https://priuschat.com/threads/brake-pedal-hard-when-first-starting-then-normal.260253/ https://priuschat.com/threads/brake-pedal-hard-when-first-starting-then-normal.260253/ invalid@example.com (Kam2) Kam2
Has anyone experienced this issue? Any advice on what to check first would be appreciated.]]> 18 Sat, 06 Jun 2026 03:07:12 +0000 https://priuschat.com/threads/what%E2%80%99s-making-this-noise.260168/ https://priuschat.com/threads/what%E2%80%99s-making-this-noise.260168/ invalid@example.com (samposey) samposey

I’ve got a 2015 Prius. Recently, it has started making a whining noise every 15 seconds or so beginning when I unlock the vehicle, throughout my drive, and after I shut the vehicle down and lock it. It takes a bit after shutting down for the sound to go away. I was able to see what is causing the sound, just have no idea what it is. Can anyone help with solving my problem? I’d love to fix it on my own without taking to the dealer,...

What’s making this noise?]]> 9 Fri, 05 Jun 2026 00:25:41 +0000 https://priuschat.com/threads/techstream-vim-module.260252/ https://priuschat.com/threads/techstream-vim-module.260252/ invalid@example.com (PriuSocal) PriuSocal
1. Are there any advantages to using this larger VIM with any version of OFFLINE Techstream ? (I currently have access to v18).

2. Are you able to do things with more things using the TS VIM vs the J2534? Does it require...

Techstream VIM Module]]> 12 Thu, 04 Jun 2026 21:07:47 +0000 https://priuschat.com/threads/looking-for-hybrid-battery-for-2011-toyota-prius.260123/ https://priuschat.com/threads/looking-for-hybrid-battery-for-2011-toyota-prius.260123/ invalid@example.com (Gerald10) Gerald10
I'm looking for a safe hybrid battery for a 2011 Toyota Prius.
I’ve read about Nickel-Metal Hydride (NiMH) vs. sodium-ion cell batteries. Do you have any recommendations/experience? Is a sodium-ion cell battery a good option for the Prius?

Do you have any experience with these hybrid battery options? thehybridgeek or greentecauto

Hi mudder - saw your youtube video - could you please give some feedback?

Thanks,
Gerald]]> 22 Wed, 03 Jun 2026 20:11:34 +0000 https://priuschat.com/threads/door-seal-replacement-trunk-engine-compartment-resealing-recommendations.260243/ https://priuschat.com/threads/door-seal-replacement-trunk-engine-compartment-resealing-recommendations.260243/ invalid@example.com (Gerald10) Gerald10
I want to replace the door frame seals as well as I also want to reseal the trunk and the engine compartment on my 2011 Toyota Prius - any recommendations?

Thanks]]> 11 Tue, 02 Jun 2026 23:10:07 +0000 https://priuschat.com/threads/200-000-mile-club.205349/ https://priuschat.com/threads/200-000-mile-club.205349/ invalid@example.com (Raytheeagle) Raytheeagle .

For those that reached 200,000 miles, please post information about your ownership experience.

Some questions to think of...

1) Did you replace the HV battery pack? Do you maintain it?
2) Did you replace the 12v battery?
3) Did you replace the transaxle fluid? How often?
4) Did you replace the brake pads?
5) Your lifetime MPG (if available)?
6) How often do you change your oil? Does your Prius consume oil? What brand /...

200,000 Mile Club]]> 237 Tue, 02 Jun 2026 04:57:40 +0000 https://priuschat.com/threads/need-a-more-comfortable-ride.260200/ https://priuschat.com/threads/need-a-more-comfortable-ride.260200/ invalid@example.com (KLS24) KLS24 5 Mon, 01 Jun 2026 18:05:07 +0000 https://priuschat.com/threads/is-it-time-to-move-on.260213/ https://priuschat.com/threads/is-it-time-to-move-on.260213/ invalid@example.com (Kiiing) Kiiing
Is it time to move on ? ]]> 7 Mon, 25 May 2026 15:58:25 +0000 https://priuschat.com/threads/throttle-controller-for-gen3-prius.238838/ https://priuschat.com/threads/throttle-controller-for-gen3-prius.238838/ invalid@example.com (Mackj) Mackj 4 Sat, 23 May 2026 09:33:29 +0000 https://priuschat.com/threads/buying-rebuilt-hybrid-battery-results-2011.260033/ https://priuschat.com/threads/buying-rebuilt-hybrid-battery-results-2011.260033/ invalid@example.com (bobby515) bobby515 First off, I see the car like a taxi in a city, which makes a giant difference in the batteries' lasting, as compared to driving on the highway daily to work.
results
Don't buy a rebuilt.
costs about $1100 each, 1-year warranty
. Buy new if the car is clean and nice. In 2.5 years, I am on battery #4, 2 different companies'
total costs. $2200 not worth it.
But if you have an old car and must buy. Pay extra for...

buying rebuilt hybrid battery results 2011]]> 7 Sat, 23 May 2026 05:00:29 +0000 https://priuschat.com/threads/factory-led-headlight-housings.260069/ https://priuschat.com/threads/factory-led-headlight-housings.260069/ invalid@example.com (Shaken71) Shaken71 Let's just say I'm in shock after doing a little bit of searching for the headlight housing...
Can you convert it to a halogen housing or am I just stuck buying a $600 new LED housing?

Thank much!

2010 Prius V
117K
09/09 build]]> 6