TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections have been updated. October 30, 2017 Rev1: ? Applicability has been updated to include 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0012-13. Service Bulletin No. T-SB-0012-13 is obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated
full bulletin at NHTSA ↗2007 Toyota Prius powertrain problems
severe Owners of the 2007 Toyota Prius have filed 36 NHTSA complaints about the powertrain, typically surfacing around 75,000 miles at roughly $2,500 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Failure mileage
Complaints
36
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2005 Prius | 33 |
| 2006 Prius | 17 |
| 2007 Prius (this page) | 36 |
| 2008 Prius | 52 |
| 2009 Prius | 16 |
| 2010 Prius | 64 |
| 2011 Prius | 18 |
3crashes
1fire
What stands out
Owners have filed 36 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Among the 13 model years of Toyota Prius in our records for powertrain problems, this one ranks #3 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain 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.
TechTip: Condition - The vehicle may be difficult to start or have an abnormally low or rough idle after the battery has been disconnected or power to the Engine ECM has been interrupted.
full bulletin at NHTSA ↗TSB: World Standard (WS) Automatic Transmission Fluid (ATF) was introduced to reduce maintenance costs and increase the mileage between scheduled maintenance checks. Here are some important tips when working with ATF-WS in Toyota vehicles requiring it's use.
full bulletin at NHTSA ↗This bulletin contains general vehicle pulling diagnosis and repair procedures along with specific information to help correct pulling complaints.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2007 Prius hybrids describe powertrain failures that range from unwanted traction-control power cuts to complete loss of drive, transmission shifts to neutral, and diagnostic confusion.
The most dangerous are total power losses while driving—on expressways, highways, and city streets—where instruments go dark, steering and brakes lose assist, and the car coasts to a stop or near-collision. Several owners cite sudden shifts from Drive to Neutral, sometimes repeatedly after sitting in heat, forcing them to manually hold the shifter engaged or risk losing vehicle control. One owner reports the car lurching into a garage door after being shut down.
Traction-control sensitivity creates hazards too. When traction sensors trigger—from potholes, speed changes, bumps, or using a smaller spare tire—the system cuts engine power for 1–2 seconds, leaving owners unable to accelerate into traffic or climb inclines. Owners say no override exists and dealers confirm "this is normal" design.
Transmission diagnostics often fail to find the root cause. Owners report warning lights (red triangle, brake, ABS, check engine, stability control), mysterious noises, hesitation, and sluggish acceleration. Some had repairs done—transaxle replacements ($4,900+), inverter/water pump replacements ($700+)—only to have lights return or the same problem recur. One owner's recalled inverter pump (2012 recall) failed again barely two weeks after the 100,000-mile warranty ended.
Same Toyota Prius powertrain reports on nearby years: 2005 · 2006 · 2008 · 2009 · 2010
Failure modes owners describe
Total power loss / limp mode
Complete loss of engine power, steering assist, and brake assist while driving, causing the car to coast and lose all responsiveness. Instrument cluster sometimes goes dark.
When: While driving at highway and city speeds; one case at 35 mph, another on expressway at 65 mph, another on I-540 interstate
Symptoms owners cite: Transmission failure warning display; Red triangle light with beep; Brake, ABS, airbag, check engine lights illuminate; Loss of steering assist and power brakes; Instruments black out; Vehicle coasts to stop, cannot restart immediately
Codes mentioned: P0AA6, P3009, POA2B, C23128
Repairs/costs cited: Warranty coverage for crankshaft/camshaft position sensor (CODE POA90, related P0340); transaxle replacement $4,900+; inverter/water pump replacement $699–$2,800; one repair performed under 2012 recall (NHTSA 12V536000) failed again within weeks
Recalls/TSBs owners mention: 2006 voluntary recall on crankshaft position sensor (2001–2002 Echo/Prius models); 2012 inverter pump recall (NHTSA 12V536000); Technical Service Bulletin T-SB-0142-11 for transmission shifts; July 2006 TSB for transaxle improvement; extended warranty on instrument cluster (expired 2016)
Transmission shifts to Neutral while driving
Electronic gear shifter disengages from Drive or Reverse, shifting into Neutral without driver input, sometimes repeatedly. Occurs most frequently when vehicle is parked in hot sun.
When: While driving at low speeds (10–35 mph); frequently after car sits in heat; one case at 45 mph on route
Symptoms owners cite: Shifter moves from Drive to Neutral on its own; Cannot lock shifter in Drive; pops back to Neutral repeatedly; Vehicle loses power and coasts; Driver must manually hold shifter in gear to maintain control; After cooling, normal function resumes; Occasional reversal (Drive shifts to Reverse)
Repairs/costs cited: Shifter knob replacement quoted at $400 parts + $100 labor; owners report dealer has heard of issue but cannot replicate intermittent failures; one case involved towing 50 miles
Recalls/TSBs owners mention: Service advisors acknowledge issue is known; one TSB (T-SB-0142-11) references transmission shift problems; no formal recall issued for intermittent shift failures
Traction control power cutout on wheel slip
When wheel sensors detect slip (from bumps, potholes, speed changes, or mismatched tire sizes), traction control cuts engine power to drive wheels for 1–2 seconds. System cannot be disabled and is too sensitive.
When: Triggered by any wheel slip: bumps, potholes, speed transitions, hot pavement, snowy inclines, spare tire use, car-wash ramps; affects repeated normal driving
Symptoms owners cite: Engine power goes to zero for 1–2 seconds; Vehicle coasts or slows dramatically; Accelerator pedal unresponsive even if depressed hard; System reactivates unpredictably; Traction control icon appears on dash; Hazardous when merging into traffic or accelerating uphill
Repairs/costs cited: No fix available; Toyota service advisors state 'system was designed that way' and 'no reprogramming fix'; suggestion to keep new tires; one owner in snowy climate reports extreme difficulty ascending gentle slopes
Recalls/TSBs owners mention: Acknowledged by Toyota service advisors at multiple dealerships; no TSB or recall issued; feature reportedly designed to protect CVT transmission
Inverter/water pump (hybrid converter) failure
Hybrid inverter or water pump fails, causing complete instrument blackout and power loss while driving. Part subject to recall (NHTSA 12V536000) but premature re-failure reported.
When: While driving on freeway; one case on jam-packed highway in dark; incident occurred barely 2 weeks after 100,000-mile powertrain warranty expired
Symptoms owners cite: Instant instrument panel blackout; Complete power loss, car cannot shift to neutral; Cannot accelerate or steer; Multiple warning lights after restart
Repairs/costs cited: Replacement cost $699.09 + tax; part #G9020-47031; one owner had identical part replaced under recall in 2013, failed again; repair documented in receipt
Recalls/TSBs owners mention: NHTSA recall 12V536000 (2012) for hybrid water pump/inverter pump; dealer confirmed recall was performed in 2013 on one vehicle, yet same component failed again; Toyota customer service told owner 'no recourse'
Sudden acceleration or power surge
Engine and motors unexpectedly roar and surge forward, requiring driver to ride brakes to avoid collision. Occurs at low speeds during deceleration or after bumps.
When: At 5–10 mph during stop-light deceleration, downhill on bumpy pavement, over road bumps; one case at 60 mph behind 16-wheeler
Symptoms owners cite: Engine and electric motor roar; Strong forward lunge lasting 1–2 seconds; Occurs during transition from electric to gasoline power; Mild to severe, requiring mild to firm brake pressure; Smoke and flames around wheel well in severe case
Repairs/costs cited: One case involved carpet mat wedged on accelerator, causing fire; burned rotors found on inspection; independent inspection by Precision Tune Auto Care revealed burned rotors after Toyota's initial carpet-mat diagnosis; owner stonewalled by manufacturer
Recalls/TSBs owners mention: Toyota service center attributed one case to carpet mat without further service; owner's subsequent inspection revealed burned components; owner disputed diagnosis and was told to drive vehicle until issue recurs to prove it
Accelerator loses power / hesitation during hard acceleration
Accelerator pedal becomes unresponsive or hesitates, especially during hard acceleration or uphill starts, as if engine might stall. Power returns after 1–2 seconds or is delayed.
When: During hard acceleration early in drive; uphill left turns; when trying to merge into traffic; present from first month of ownership
Symptoms owners cite: Engine hesitation or lag for 1–2 seconds; Loss of power when flooring accelerator; Engine feels as if it might stall; Brief no-power window between power pulses; Unreliable response when merging
Repairs/costs cited: Dealer could not reproduce problem and performed no service; issue persists since first month of ownership; no diagnostic codes or repair actions documented
Recalls/TSBs owners mention: Dealer told owner 'car is operating normally' despite complaint; unable to replicate intermittent condition
Park mechanism / unintended movement when parked
Vehicle parked in Park lurches forward when engine engages for AC/heat, or shifts out of Park and rolls away on its own. Park lock wear causes loss of holding force.
When: While parked with engine running for climate control; one case while parked in driveway after being bumped by another vehicle; one case after shutting off engine
Symptoms owners cite: Car lurches forward when engine engages; Vehicle rolls away from Park without driver input; Warning on display about park mechanism failure; Gears slip into Neutral then Reverse; Car collided with garage door and tree
Repairs/costs cited: Toyota states lurch is 'normal due to wear on park lock' and recommends using parking brake as workaround; no repair offered
Recalls/TSBs owners mention: Toyota acknowledges park lock wear as normal; recommends parking brake engagement; no recall or service campaign identified
Instrument cluster blackout
Instrument panel cluster loses power intermittently or permanently while driving, blacking out all displays, warning lights, and controls. Cannot start or shut off vehicle.
When: While driving; intermittent events; extended warranty expired in 2016
Symptoms owners cite: Complete instrument panel blackout; Loss of speedometer, gear selection, fuel level display; No warning lights visible; Vehicle won't start or shut off; Loss of visibility into vehicle status
Repairs/costs cited: Replaced under extended warranty; warranty expired in 2016; owners not notified if vehicle purchased after 2016
Recalls/TSBs owners mention: Toyota issued extended warranty for instrument cluster failure; sent letter to owners; warranty expired 2016; no notice to later purchasers
Synthesized from 36 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Had powertrain trouble with your 2007 Toyota Prius?
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 powertrain problem on the 2007 Toyota Prius?
It's a meaningful issue. 36 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 27 complaints that reported odometer mileage, most powertrain failures cluster between 44,000 and 102,200 miles, with the median around 75,000. A quarter of owners report trouble before 44,000; a quarter make it past 102,200. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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/2007/Toyota/Prius.
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.