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2014 Toyota Prius Recalls, Issues & Maintenance

The 2014 Toyota Prius carries 3 open NHTSA recalls — most recently covering hybrid propulsion system and inverter. Owners report 5 recurring issue clusters, led by “Brake booster and accumulator pump failure.” Toyota's owner's manual splits service into Schedule 1 (severe) and Schedule 2 (normal). Most US drivers fall under Schedule 1 because it covers short trips, extreme temperatures, dusty roads, or heavy idling. The intervals below reflect Schedule 1 — the schedule Toyota recommends for typical real-world use.

3 Open Recalls

Source: NHTSA

HYBRID PROPULSION SYSTEM

Campaign #18V684000 · Apr 10, 2018

Issue: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2014 Toyota Prius and 2012-2014 Toyota Prius V vehicles. Excessive voltage in the Intelligent Power Module (IPM) within the inverter may cause the hybrid system to shut down, causing the vehicle to stall while being driven.

Risk: If the hybrid system shuts down unexpectedly, it can increase the risk of a crash.

Fix: Toyota will notify owners, and dealers will update the software for the motor/generator control electronic control unit (ECU) and the hybrid control ECU as necessary, free of charge. The recall began January 22, 2019. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0V. Note: The software updates in this recall are needed even if the vehicle had the software previously updated under recalls 14V-053 or 15V-449.

HYBRID PROPULSION SYSTEM: INVERTER

Campaign #14V053000 · Dec 2, 2014

Issue: Toyota is recalling certain model year 2010 through 2014 Prius vehicles. In the affected vehicles, the Intelligent Power Module (IPM) inside the inverter module (a component of the hybrid system) contains transistors that may become damaged from high operating temperatures. If this occurs, various warning lamps will be illuminated on the instrument panel and the vehicle will have reduced power allowing it to only drive a short distance.

Risk: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. The hybrid system could also shut down completely resulting in a vehicle stall, increasing the risk of a crash.

Fix: Toyota will notify owners and dealers will update the software for both the motor/generator control electronic control unit (ECU) and the hybrid control ECU, free of charge. If an owner experiences a failure of the inverter before the vehicle receives updated software, the dealer will repair or replace the inverter assembly with a new one at no charge. The recall began on March 21, 2014. Owners may contact Toyota at 1-800-331-4331.

HYBRID PROPULSION SYSTEM: INVERTER

Campaign #20V369000 · Jun 24, 2020

Issue: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2013-2015 Prius and 2014-2017 Prius V vehicles not included in recall 18V-684. Excessive voltage in the Intelligent Power Module (IPM) within the inverter may cause the hybrid system to shut down, causing the vehicle to stall while being driven.

Risk: An unexpected hybrid power system shut down may increase the risk of a crash.

Fix: Toyota will notify owners, and dealers will perform a software update for the hybrid system. If the vehicle has experienced an inverter failure with certain hybrid system faults related to this condition, the inverter assembly will be repaired or replaced, prior to software update. All repairs will be performed free of charge. This recall began July 24, 2020. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is 20TB10 / 20TA10.

Recall data refreshed Sep 6, 2026.

Known issues for this vehicle

What drivers and federal regulators have officially reported about the 2014 Toyota Prius.

1 active NHTSA investigation

Source: NHTSA

  • Brake Actuator Valve Wear

    Action #DP23005 · opened Nov 22, 2023

    The Office of Defects Investigation (ODI) has received a petition dated September 19, 2023 from the owner of a 2012 Toyota Prius V requesting that ODI reevaluate its decision to deny DP19-004. In the letter, the petitioner reported experiencing an unexpected and complete loss of…

    View on NHTSA →

Reported to NHTSA

Brake booster and accumulator pump failure

SERVICE BRAKES

95 NHTSA complaints · 2015-07 → 2026-08

“My car experienced a failing brake actuator/accumulator. The first sign was the ABS and break lights accompanied by a whoosing sound. The issue causes intermittent system wide break failure and renders the car undriveable”
— Owner report, NHTSA ODI #11751206
“On April 5, 2026, while driving downhill around a corner in my 2014 Toyota Prius, the brake booster and brake booster pump assembly failed without any prior warning”
— Owner report, NHTSA ODI #11731351
“The contact owns a 2014 Toyota Prius. The contact stated while driving at an undisclosed speed, the brake pedal was depressed with several unknown warning lights illuminated”
— Owner report, NHTSA ODI #11616706

Read all complaints on NHTSA →

Head gasket failure and excessive oil consumption

ENGINE

15 NHTSA complaints · 2019-02 → 2026-03

“the cylinder head gasket blew because of the poor design of the intake manifold and the EGR system”
— Owner report, NHTSA ODI #11724395
“Head gasket failure. No check, engine, light or warning. My car was very well maintained regularly”
— Owner report, NHTSA ODI #11721338
“The car has oil consumption and over heat the try to fix it but no no one can d it so far”
— Owner report, NHTSA ODI #11504237

Read all complaints on NHTSA →

Rodent damage to electrical wiring harness

ELECTRICAL SYSTEM

6 NHTSA complaints · 2015-08 → 2017-05

“RODENTS CHEWED ELECTRICAL WIRING MAKING THE VEHICLE UNSAFE TO DRIVE”
— Owner report, NHTSA ODI #10986015
“RODENTS CHEWED THROUGH MAJORITY OF THE WIRING UNDER THE HOOD AND BUILD NESTS IN THE ENGINE”
— Owner report, NHTSA ODI #10948489
“THE CONTACT OWNS A 2014 TOYOTA PRIUS. THE CONTACT STATED THAT THE WIRE HARNESS WIRING WAS BEING DAMAGED BY ANIMALS BITING THE WIRING”
— Owner report, NHTSA ODI #10764119

Read all complaints on NHTSA →

Hybrid propulsion system shutdown or stall while driving

HYBRID PROPULSION SYSTEM

30 NHTSA complaints · 2018-04 → 2025-06

“We were driving on a city street about 25-30mph and the car jerked suddenly and the lights on the dashboard illuminated and the "Check Hybrid System" message came up as well”
— Owner report, NHTSA ODI #11667479
“HYBIRD SYSTEM MALFUNCTION. CAR LOST POWER AND STALLED WHERE WE CANNOT SHIFT”
— Owner report, NHTSA ODI #11402751
“I WAS GOING DOWN THE HIGHWAY AT ABOUT 70 MPH WHEN ALL THE SUDDEN THE PRIUS LOST POWER. THE PRIUS DROPPED DOWN TO ABOUT 55 MPH”
— Owner report, NHTSA ODI #11151409

Read all complaints on NHTSA →

Airbag deployment malfunction in a crash

AIR BAGS

15 NHTSA complaints · 2015-06 → 2022-12

“My 2014 Toyota Prius was in a T-bone accident, directly on the driver door and the side air bags did not deploy”
— Owner report, NHTSA ODI #11465834
“Airbags did not deploy when I got into an accident on I-91”
— Owner report, NHTSA ODI #11458765
“MY AIRBAGS DEPLOYED PRIOR TO IMPACT AT A SPEED OF LESS THAN 25 MPH”
— Owner report, NHTSA ODI #11290363

Read all complaints on NHTSA →

Note: NHTSA also opened 2 defect investigation(s) on this vehicle that closed without action.

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 11, 2026. Investigation data refreshed Sep 11, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Essential maintenance

Critical for safety and preventing major damage

Engine Oil & Filter

Every 5,000 mi

Replace 0W-20 full-synthetic oil and filter every 5,000 miles under Schedule 1, or 10,000 miles under Schedule 2. Toyota covers the first 2 oil changes through ToyotaCare.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Tire Rotation

Every 5,000 mi

Rotate tires every 5,000 miles. Toyota recommends rotation at every oil change to maximize tire life on FWD and AWD models.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 5,000 mi

Inspect brake pads, rotors, and parking brake every 5,000 miles. Toyota recommends measuring pad thickness at each service.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 30,000 mi

Replace DOT 3 brake fluid every 30,000 miles or 36 months. Critical for the integrity of the ABS, VSC, and brake assist systems.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Engine Air Filter

Every 30,000 mi

Replace the engine air filter every 30,000 miles. Earlier under Schedule 1 if driven on unpaved roads.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Automatic Transmission Fluid

Every 60,000 mi

Toyota labels ATF as 'lifetime fill' on most automatics, but recommends inspection and replacement every 60,000 miles under severe service. Use Toyota WS or Type-IV — no substitutes.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 120,000 mi

Toyota iridium-tipped spark plugs are rated for 120,000 miles. Earlier replacement reduces fuel economy and can cause misfires on direct-injection engines.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Super Long Life Coolant (SLLC)

Every 50,000 mi

Toyota SLLC (pink): first change at 100,000 miles, then every 50,000 miles. Do not substitute green or orange coolant — it will damage the cooling system seals.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Cabin Air Filter

Every 30,000 mi

Replace the cabin air filter every 30,000 miles, sooner in dusty climates. Located behind the glove box on most Toyota and Lexus models.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Serpentine / Drive Belt Inspection

Every 60,000 mi

Inspect the serpentine belt and tensioner every 60,000 miles. Toyota uses long-life EPDM belts that rarely fail before 100,000 miles.

Estimated cost — typical U.S. ranges

Dealer

~$195–$235

Shop

~$135–$165

DIY

~$20–$50

DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.

Timing Chain — No Replacement

On condition / lifetime

Toyota's 2AR-FE, 2GR-FKS, A25A-FKS, and most Toyota engines built since 2010 use a timing chain rated for the life of the engine. No scheduled replacement.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Pro only

Timing chains are normally lifetime. Listen for rattle on cold start — that's the actionable signal. Replacement is major work, quote separately.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

71 crashes 2010–2024

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

30

complaints mentioning a crash

1

complaints mentioning a fire

Reviewed known issues for this vehicle·Open recalls for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2014 Toyota Prius reflects Toyota's published service intervals and the Maintenance Required Light system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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