Prius v Technical Discussion Here you can discuss the technical ins and outs of the Prius v and related hybrid components. Tue, 21 Apr 2026 20:12:10 +0000 Tue, 21 Apr 2026 20:12:10 +0000 PriusChat https://priuschat.com/forum/prius-v-technical-discussion.121/ Probable head gasket Sun, 19 Apr 2026 22:45:55 +0000 https://priuschat.com/threads/probable-head-gasket.258625/ https://priuschat.com/threads/probable-head-gasket.258625/ invalid@example.com (Hirshwin) Hirshwin My wife and I own a 2013 Prius V. Which we purchase new and had 170K miles. At about 145K we had the missing when cold and a good local service shop diagnosed and repaired the cloged ERG. Now we have occasional ratteling on cold start up. On a couple of occations I've check the coolent and observed it a minimum. But it's very irregular. I did the test for CO2 gas in the coolant tank, but the indicator never changed from blue. In the last month I have lost two...

Probable head gasket]]> 13 Cylinders misfire while in park in idle only Sun, 22 Mar 2026 02:10:44 +0000 https://priuschat.com/threads/cylinders-misfire-while-in-park-in-idle-only.259306/ https://priuschat.com/threads/cylinders-misfire-while-in-park-in-idle-only.259306/ invalid@example.com (robrob) robrob
Cylinders misfire while in park in idle only]]> 8 JDM Engine in a US Prius? Sun, 15 Mar 2026 00:03:05 +0000 https://priuschat.com/threads/jdm-engine-in-a-us-prius.213912/ https://priuschat.com/threads/jdm-engine-in-a-us-prius.213912/ invalid@example.com (RunningOnMT) RunningOnMT
I picked up a 2012 Prius V with a blown head gasket. It has 195k on it and was reportedly using about 1qt of oil every 1k miles, so I've elected to replace the engine rather than R&R the head gasket alone.

My question is: can anyone confirm whether a JDM engine is plug and play in a US market Prius? Or if there are modifications that must be done, any details on that? I've searched, but so far haven't found the positive confirmation I was hoping for.

In other vehicles, JDM...

JDM Engine in a US Prius?]]> 48 HELP Thu, 12 Mar 2026 21:32:14 +0000 https://priuschat.com/threads/help.259299/ https://priuschat.com/threads/help.259299/ invalid@example.com (presus) presus
long story short my heater core busted, tore it all down put it back and it doesnt want to ready. everything else works except ready and the obd.

i am suspecting it has something to do with this unplugged connector. i have no idea where it goes. thanks.]]> 16 Oil pump chain position. Mon, 09 Feb 2026 05:32:22 +0000 https://priuschat.com/threads/oil-pump-chain-position.258792/ https://priuschat.com/threads/oil-pump-chain-position.258792/ invalid@example.com (Hirshwin) Hirshwin I am fully involved with a DIY cylindar head gasket repair. I have the head back from a machine shop and it all looks pretty good. It's pretty eash to tell when the crank is TDC. But, there is not much information on this smaller chain. Many of the videos do not even pay attention to the relative position. There is one post on prius chat that which refers to the reationship. I have rotated the engine not several times and have the small dot alligned on the...

Oil pump chain position.]]> 5 Overheating? DC/DC issues? Worse? Thu, 15 Jan 2026 23:19:00 +0000 https://priuschat.com/threads/overheating-dc-dc-issues-worse.254170/ https://priuschat.com/threads/overheating-dc-dc-issues-worse.254170/ invalid@example.com (LisaLiza) LisaLiza
She's been a dream through and through, and if this is the end she's earned her rest - but I'm hoping this isn't her death knell. The 12v battery (from 2021) died recently, when the overhead light was inadvertently left on for several...

Overheating? DC/DC issues? Worse?]]> 13 2012 Prius V Skid Control Module Thu, 15 Jan 2026 23:17:02 +0000 https://priuschat.com/threads/2012-prius-v-skid-control-module.255808/ https://priuschat.com/threads/2012-prius-v-skid-control-module.255808/ invalid@example.com (James_B_Elam) James_B_Elam
Is it the skid control module and where is it located?

Thank you.]]> 5 2014 Prius V- Windshield wipers only work on high speed. Thu, 08 Jan 2026 20:00:02 +0000 https://priuschat.com/threads/2014-prius-v-windshield-wipers-only-work-on-high-speed.258549/ https://priuschat.com/threads/2014-prius-v-windshield-wipers-only-work-on-high-speed.258549/ invalid@example.com (Owen2014PriusV) Owen2014PriusV
New Prius owner here. My 2014 V just started having an issue where my wipers only work on the highest speed setting, the cleaning spray also works. No low speed, no medium, and it does not work to switch it up when you manually trigger wipers once. Also worth noting that when I trigger cleaning spray, the wipers do not also trigger.
I replaced the column switch (wipers only) with one from a slightly older Prius V, and that did not work either, so I switched back to the original...

2014 Prius V- Windshield wipers only work on high speed.]]> Finally - lights from Brake Booster/Pump failure Wed, 07 Jan 2026 18:55:23 +0000 https://priuschat.com/threads/finally-lights-from-brake-booster-pump-failure.258499/ https://priuschat.com/threads/finally-lights-from-brake-booster-pump-failure.258499/ invalid@example.com (wafwat) wafwat
The car has 119,575 miles and it's in service date is September 2016. SOOOO we made it in time to hopefully qualify for the...

Finally - lights from Brake Booster/Pump failure]]> 8 DIY Headlight assembly replacement Fri, 02 Jan 2026 01:10:30 +0000 https://priuschat.com/threads/diy-headlight-assembly-replacement.257088/ https://priuschat.com/threads/diy-headlight-assembly-replacement.257088/ invalid@example.com (Bill Bruck) Bill Bruck 9 Battery level Mon, 29 Dec 2025 14:07:03 +0000 https://priuschat.com/threads/battery-level.258403/ https://priuschat.com/threads/battery-level.258403/ invalid@example.com (bikeboy999) bikeboy999
B]]> 9 Abs replacement issues Tue, 18 Nov 2025 01:35:41 +0000 https://priuschat.com/threads/abs-replacement-issues.257893/ https://priuschat.com/threads/abs-replacement-issues.257893/ invalid@example.com (soners22) soners22
After replacing the units, I've gone thru the various procedures in an attempt to bleed the system, reset the module and sensors, etc.

The issue I'm having is nothing is working. I'm not getting the units to active, bleed or anything. I get the impression that there is another...

Abs replacement issues]]> 3 I need to disable my TPMS system Sat, 15 Nov 2025 21:01:51 +0000 https://priuschat.com/threads/i-need-to-disable-my-tpms-system.218630/ https://priuschat.com/threads/i-need-to-disable-my-tpms-system.218630/ invalid@example.com (gromittoo) gromittoo
PLEASE DON'T BOTHER TO REPLY IF YOUR SOLUTION CONTAINS ANY OF THE FOLLOWING:
- "Just ignore the light"
- "Black tape over the light"
- "I don't even notice the light"
- "Put the TPMS sensors in PVC pipe under 30 PSI and stuff it on the car someplace"
​
I own 6 rims for my 2013 Prius V, and rotate them a lot. I also believe in full size spares. I drove for Uber in the pre-pandemic days. Having a full size spare behind the garage means that when a...

I need to disable my TPMS system]]> 58 Location of fuse links Thu, 06 Nov 2025 22:28:47 +0000 https://priuschat.com/threads/location-of-fuse-links.257416/ https://priuschat.com/threads/location-of-fuse-links.257416/ invalid@example.com (473 Prius v) 473 Prius v 35 2015 Prius V gas motor start up feels like a rear ending? Sun, 26 Oct 2025 23:37:36 +0000 https://priuschat.com/threads/2015-prius-v-gas-motor-start-up-feels-like-a-rear-ending.257609/ https://priuschat.com/threads/2015-prius-v-gas-motor-start-up-feels-like-a-rear-ending.257609/ invalid@example.com (kevinprius416) kevinprius416
Since picking it up, I've followed along with the extra maintenance recommended on this board:
replace water pump (ASIN), thermostat (OE), coolant hoses,...

2015 Prius V gas motor start up feels like a rear ending?]]> 5 2012 prius v still has rattle sometimes after 2 engine swaps Sat, 13 Sep 2025 18:37:46 +0000 https://priuschat.com/threads/2012-prius-v-still-has-rattle-sometimes-after-2-engine-swaps.257035/ https://priuschat.com/threads/2012-prius-v-still-has-rattle-sometimes-after-2-engine-swaps.257035/ invalid@example.com (Ethan Guzman) Ethan Guzman
2012 prius v still has rattle sometimes after 2 engine swaps]]> 2 Question about underhood wiring Tue, 26 Aug 2025 20:49:17 +0000 https://priuschat.com/threads/question-about-underhood-wiring.210678/ https://priuschat.com/threads/question-about-underhood-wiring.210678/ invalid@example.com (Centerpunch) Centerpunch
I was surprised to see these tiny wires out in the open unprotected, and not covered by a plastic shroud on the end of the wire...

Question about underhood wiring]]> 12 How to deregister a missing fob? Thu, 21 Aug 2025 10:50:49 +0000 https://priuschat.com/threads/how-to-deregister-a-missing-fob.256728/ https://priuschat.com/threads/how-to-deregister-a-missing-fob.256728/ invalid@example.com (mercat68) mercat68 Swap 2012 V headlight assembly with 2014? Tue, 19 Aug 2025 16:02:10 +0000 https://priuschat.com/threads/swap-2012-v-headlight-assembly-with-2014.256686/ https://priuschat.com/threads/swap-2012-v-headlight-assembly-with-2014.256686/ invalid@example.com (mercat68) mercat68 2 Cleared check engine light by battery disconnect now locked out Tue, 05 Aug 2025 01:20:16 +0000 https://priuschat.com/threads/cleared-check-engine-light-by-battery-disconnect-now-locked-out.256449/ https://priuschat.com/threads/cleared-check-engine-light-by-battery-disconnect-now-locked-out.256449/ invalid@example.com (steppin) steppin 15