The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
full bulletin at NHTSA ↗2014 Toyota Prius V electrical problems
severe 13 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
13
Recalls
0
Avg fix
$850
2fires
When does it fail?
Of the 13 electrical complaints filed for the 2014 Toyota Prius V, here's the actual mileage breakdown — failures cluster heaviest at 150,000+ mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA electrical complaint has been filed on this vehicle in over 5 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
DP: The Data Communication Module (DCM) in the subject vehicles are equipped with software to identify the location of the vehicle using the Global Positioning System (GPS) to support features of the Safety Connect system. Due to incorrect programming in the DCM software, after November 2nd, 2019, the GPS coordinates for this system will be calculated incorrectly. This will cause the system to use incorrect vehicle coordinates if one of the system?s features is activated.
full bulletin at NHTSA ↗TI: TECHNICAL INSTRUCTIONS FOR LIMITED SERVICE CAMPAIGN K0P CUSTOMER SUPPORT PROGRAM 19TE12 SAFETY CONNECT SYSTEM ? VEHICLE LOCATION INACCURATE CERTAIN 2013 ? 2019 MODEL YEAR 4RUNNER 2011 ? 2017 MODEL YEAR LAND CRUISER 2013 ? 2017 MODEL YEAR PRIUS 2012 ? 2017 MODEL YEAR PRIUS V 2016 ? 2017 MODEL YEAR MIRAI Updated 010/25/2023
full bulletin at NHTSA ↗DP: The Customer Confidence Program is a component of a class action settlement that includes several elements of coverage. The Customer Confidence Program provides coverage as it applies to the intelligent power module (IPM). The specific condition covered by this Customer Confidence Program 23TE02 is failure of the IPM located inside the inverter assembly of the hybrid system indicated by DTCs P0A7A and/or P0A78. If either of these DTCs are detected, various warning lamps on the instrument panel will also illuminate and the vehicle will enter Fail Safe Mode. Toyota will also provide coverage if the IPM has failed due to a thermal event regardless of what DTC is detected, or if the IPM has
full bulletin at NHTSA ↗DP: The Customer Confidence Program is a component of a class action settlement that includes several elements of coverage. The Customer Confidence Program provides coverage as it applies to the Intelligent Power Module (IPM). The specific condition covered by this Customer Confidence Program 23TE03 is failure of the IPM located inside the inverter assembly of the hybrid system indicated by DTCs P0A94, P0A1A, P324E, and/or P3004. If any of these DTCs are detected, various warning lamps on the instrument panel will also illuminate and the vehicle will enter Fail Safe Mode.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2014 Prius V models describe a cluster of dangerous electrical and powertrain failures. Multiple reports document sudden engine stalling at highway speeds with warning lights illuminating seconds before shutdown, sometimes accompanied by complete loss of power steering and brakes once the electric motor also fails. One owner stalled twice in six months at under 70K miles; another stalled at freeway speed despite an existing recall for inverter issues that allegedly was already serviced.
Brake system failures are serious: one owner faced a complete brake booster failure with a $4,800 repair bill three months outside the warranty window, and reports this happened on two separate Prius vehicles in the same household. Another owner's dealership confirmed brake pump and actuator failures at 91K miles are a "very well-known issue," quoting $5,800 for repair.
Engine problems reported include misfires on multiple cylinders, coolant and oil leaks, and compression loss with cycling check-engine lights. One owner's engine caught fire on the freeway after a metal piece allegedly fell from the valve lifter into the block. A separate owner was quoted $10,000 for a rebuilt engine after warranty denial.
Additionally, owners report rodents chewing through high-voltage wiring sheathing in the engine compartment—allegedly attracted to soy-based eco-friendly wire coatings—and invading the interior and air conditioning systems.
Same Toyota Prius V electrical reports on nearby years: 2013
Failure modes owners describe
Engine stalling and loss of power
Engine suddenly stops running while driving at highway or city speeds, sometimes with multiple warning lights illuminating seconds before stall. Electric motor may also lose power, eliminating power steering and brakes.
When: Various mileages; one report at <70K miles (Jan & June 2022); another at unspecified mileage (Aug 2025); one at 35-45 mph (unspecified mileage)
Symptoms owners cite: Engine stalls suddenly at highway speed; Multiple warning lights illuminate before stall; Electric motor loses power after engine stalls; Loss of power steering and brakes following complete power loss; Car enters neutral involuntarily; Ability to coast on battery/electric motor briefly before total loss
Codes mentioned: Intake manifold failure (reported by dealer in one case)
Repairs/costs cited: One owner reports intake manifold and related hoses/gaskets replaced by dealer; another owner paid $750 for diagnosis and faced potential $3000+ inverter replacement cost
Recalls/TSBs owners mention: Recall exists for inverter and computer symptoms on this model; however, some owners report their VINs do not qualify despite matching recall symptoms. One owner states recall was performed in Feb 2019 but inverter failed again in May 2022, with Toyota refusing warranty coverage.
Inverter failure
Hybrid inverter component fails, causing loss of hybrid system function and engine stalling. Some owners report the component was already serviced under recall but failed again shortly after.
When: One failure reported May 2022 (inverter had been serviced under recall Feb 2019); another owner seeking diagnosis Aug 2025
Symptoms owners cite: Vehicle stalls on freeway; Loss of hybrid power system; Engine will not start or continue running
Repairs/costs cited: Inverter replacement cost reported as upwards of $3000 even when recall exists; one owner paid $750 for diagnosis
Recalls/TSBs owners mention: Recall exists for inverter failure symptoms; some owners claim their VINs do not qualify despite matching recall criteria. Toyota has refused warranty repair on at least one vehicle that had inverter serviced under recall previously.
Brake booster failure
Brake booster suddenly loses function, rendering brakes ineffective and allowing vehicle to jolt forward uncontrollably. Owner reports this failure occurred on two separate Prius vehicles in same household.
When: Vehicle three months outside warranty period but within covered mileage
Symptoms owners cite: Brakes suddenly will not work; Vehicle continues to jolt forward uncontrollably; Complete loss of braking ability
Codes mentioned: 20TE07
Repairs/costs cited: Repair cost reported as $4800
Recalls/TSBs owners mention: Toyota dealership confirmed brake booster issue via diagnostic code; vehicle three months outside warranty despite being within covered mileage. Owner reports this has occurred on both of their Prius vehicles, suggesting systemic issue.
Brake system component failures
Brake pump, brake pump assembly, and brake actuator failures causing rough brake feel and slower brake response. Owner reports dealership confirmed it is a well-known issue on this model.
When: At 91K miles
Symptoms owners cite: Brakes feel rough; Slower brake reaction time; Owner too worried to drive vehicle
Repairs/costs cited: Dealership quoted $5800 for repair; owner notes dealership confirmed this is a very well-known issue on the model
Engine misfires, coolant leaks, oil leaks, and compression loss
Engine exhibits multiple simultaneous failures including misfires on cylinders 1, 2, and 4, coolant leakage, oil leakage, and compression loss. Check engine light cycles on and off. One owner reports engine caught fire; another suspects metal piece from valve lifter fell into engine block.
When: One report at 125K miles (head gasket replacement); another at unspecified mileage with metal debris in engine block
Symptoms owners cite: Engine jerks and misfires on multiple cylinders; Knocking noises from engine; Check engine light cycles on and off; Coolant leakage; Oil leakage; Compression loss; Engine caught fire (one case); Metal piece allegedly fell from valve lifter into engine block (one case); No check engine warning before catastrophic failure in one case
Repairs/costs cited: One owner was quoted $10,000 for rebuilt engine kit by Toyota service advisor; extended warranty company denied claim citing owner negligence; vehicle still malfunctioning after repair attempt by another shop. Another owner's engine caught on fire on freeway.
Recalls/TSBs owners mention: Toyota advisor recommended rebuilt engine kit costing $10,000; extended warranty company denied coverage claiming owner negligence
Intermittent horn failure
Horn functions intermittently, caused by failure of spiral cable assembly and clockspring component.
When: At 8,000 miles
Symptoms owners cite: Horn functions intermittently
Repairs/costs cited: Independent mechanic diagnosed need for spiral cable assembly and clockspring replacement; vehicle was not repaired
Rodent damage to high-voltage wiring
Rodents are attracted to and chew through eco-friendly soy-based wire coatings in engine compartment, exposing bare high-voltage electrical cables. One owner suspects soy-based wire covering attracts rodents and can affect internal wiring. Another reports rodents invading interior and air conditioning systems, destroying interior and air filtration.
When: Unspecified mileage; one incident occurred while vehicle was parked and secured
Symptoms owners cite: Rodents chew through high-voltage wiring sheath; Bare high-voltage electrical cables exposed; Mice invade interior of car; Mice destroy air conditioning systems; Interior and air filtration system destroyed; Potential disease transmission via rodent droppings (Hantavirus mentioned)
Synthesized from 13 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Unknown. I was basically driving on the freeway, when my car's engine suddenly stopped running. The car was automatically put into neutral and was not able to control the speed of the car, so I had to move to the side of the freeway. As I was sitting in the car, I started smelling burned wire and interior started to fill with smoke. I immediately turned the car off and got oit. As I was standing…
Car was diagnosed at a Toyota dealership with a brake booster issue reading code 20TE07 after my vehicles brakes suddenly would not work and the car continued to jolt forward. The brakes wouldn’t stop the car. According to Toyota, my vehicle is three months outside of the warranty period but under the covered mileage so we are left to repair this defect ourselves. This was a very dangerous…
Had electrical trouble with your 2014 Toyota Prius V?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2014 Toyota Prius V?
It's a meaningful issue. 13 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 13 complaints filed, electrical issues most often appear around 101,500 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2014/Toyota/Prius V.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.