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: Title; Replies Views; Last Message

600W DC-DC 12V to 60V "alternator charger" on Prime 12V batt?

LithiumMan, Dec 27, 2025 , Prime Main Forum (2017-2022)

Replies:

6

Views:

2,307

OptimalPrime

May 20, 2026 at 4:38 AM
Re-starts by itself. Won't start. Loses 12V battery power?

PriusOwner428, May 19, 2026 at 10:42 PM , Gen 2 Prius Care, Maintenance and Troubleshooting

Replies:

2

Views:

121

Brian1954

May 20, 2026 at 1:53 PM
Would you upgrade to DC Fast Charging if the option was avalible?

black_jmyntrn, Mar 25, 2025 , Prime Plug-in Charging

Replies:

18

Views:

4,330

OptimalPrime

May 20, 2026 at 3:19 AM
Persistent Coolant Venting Under Load: Good Cap, 0 Misfires, 216°F Peak (Graph Attached)

Asfand, May 20, 2026 at 3:07 AM , Gen 3 Prius Care, Maintenance & Troubleshooting

Replies:

1

Views:

105

Tombukt2

May 20, 2026 at 8:07 AM
Random Codes ON after Dongle Insertion

PriuSocal, May 19, 2026 at 12:36 AM , Gen 3 Prius Care, Maintenance & Troubleshooting

Replies:

11

Views:

330

ChapmanF

May 20, 2026 at 10:48 AM
Engine Overheating and Coolant Overflow

niftypsycho, Apr 7, 2026 , Gen 3 Prius Care, Maintenance & Troubleshooting ... 2

Replies:

21

Views:

1,472

Brian1954

May 20, 2026 at 2:04 PM
Prius Prime map update

IABoy987, Oct 19, 2023 , Prime Audio, Electronics, and Infotainment ... 2

Replies:

37

Views:

25,967

OptimalPrime

May 20, 2026 at 2:30 AM
2009 Prius Traction Control Alarm Malfunction After Service

MC777, May 19, 2026 at 4:53 PM , Gen 2 Prius Care, Maintenance and Troubleshooting

Replies:

3

Views:

144

ChapmanF

May 20, 2026 at 11:08 AM
Any thoughts on the "looming" motor oil shortage?

Stevewoods, May 19, 2026 at 12:03 PM , Fred's House of Pancakes ... 2

Replies:

20

Views:

395

Stevewoods

May 20, 2026 at 5:10 PM
Bodywork

futurist, Nov 13, 2025 , Fred's House of Pancakes ... 10 11 12

Replies:

220

Views:

14,113

futurist

May 20, 2026 at 12:52 AM
First time owner. Is this normal?

HalfPacked, May 19, 2026 at 4:11 PM , Prius v Care, Maintenance and Troubleshooting

Replies:

4

Views:

167

ChapmanF

May 20, 2026 at 5:17 PM
Engine replaced, but new issue?

fos4110, May 20, 2026 at 12:23 AM , Gen 1 Prius Plug-in 2012-2015

Replies:

8

Views:

144

Brian1954

May 20, 2026 at 2:40 PM
Loud fan noise when turning on

Joe Dipierro, May 17, 2026 at 11:08 PM , Gen 4 Prius Care, Maintenance and Troubleshooting

Replies:

6

Views:

333

ChapmanF

May 20, 2026 at 11:17 AM
Intake manifold condensation causing cold start rattle / shudders

RubioM, May 17, 2026 at 5:10 PM , Gen 3 Prius Care, Maintenance & Troubleshooting

Replies:

7

Views:

378

rjparker

May 20, 2026 at 12:13 AM
Spotting thread! Did you see any special cars on the road today?

Leadfoot J. McCoalroller, Jul 3, 2023 , Other Cars ... 40 41 42

Replies:

830

Views:

147,544

hill

May 20, 2026 at 4:15 PM
2013 Prius V overheating, using coolant

Wolfgang Langlois, May 15, 2026 at 11:06 PM , Prius v Care, Maintenance and Troubleshooting

Replies:

5

Views:

558

Mendel Leisk

May 20, 2026 at 7:01 AM
Question about fold flat seats

George W, May 19, 2026 at 11:22 PM , Gen 4 Prius Main Forum

Replies:

1

Views:

109

bisco

May 20, 2026 at 4:29 PM
3rd gen model year and oil consumption

Mendel Leisk, Nov 19, 2018 , Gen 3 Prius Care, Maintenance & Troubleshooting ... 5 6 7

Replies:

127

Views:

31,317

Paladain55

May 20, 2026 at 10:59 AM
What is the best 0w- 16 motor oil for 2019 prius?

George W, May 19, 2026 at 10:22 PM , Gen 4 Prius Main Forum

Replies:

1

Views:

80

bisco

May 20, 2026 at 4:54 PM
Traction battery fan — how to tell if it's working

Gwyneth, May 19, 2026 at 9:49 PM , Gen 2 Prius Technical Discussion

Replies:

3

Views:

151

bisco

May 20, 2026 at 4:45 PM

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