OBSOLETE NOTICE February 13, 2026: This bulletin is now obsolete. Please see T-SB-0009-26.
full bulletin at NHTSA ↗2013 Toyota Prius engine problems
moderate Owners of the 2013 Toyota Prius have filed 15 NHTSA complaints about the engine, typically surfacing around 84,000 miles at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
Failure mileage
Complaints
15
Recalls
0
Avg fix
$3,100
| Model year | engine complaints |
|---|---|
| 2009 Prius | 18 |
| 2010 Prius | 115 |
| 2011 Prius | 26 |
| 2012 Prius | 44 |
| 2013 Prius (this page) | 15 |
| 2014 Prius | 13 |
| 2016 Prius | 6 |
| 2017 Prius | 8 |
When does it fail?
Of the 15 engine complaints filed for the 2013 Toyota Prius, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 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 engine complaint has been filed on this vehicle in over 11 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 engine 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.
This bulletin includes basic procedures for performing a rescue charge on Ni-MH high voltage (HV) batteries. This bulletin should be used in conjunction with the applicable model and model year Repair Manual while performing a rescue charge. The GRX-5100 should be used wherever the Repair Manual references the Toyota Hybrid System (THS) charger.
full bulletin at NHTSA ↗This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the Toyota Complete Maintenance Care (TCMC) website.
full bulletin at NHTSA ↗TT: HVAC drain tube is found to be blocked/clogged.
full bulletin at NHTSA ↗TSB: OBSOLETE NOTICE August 13, 2020: This bulletin is no longer applicable and is now obsolete.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2013 Prius engines in these complaints exhibit multiple failure modes spanning oil loss, internal structural collapse, and stall events.
Excessive oil consumption is the most widespread issue: owners report burning 1 quart per 2,000 miles or more with no visible leaks or exhaust smoke. One owner consumes 5 quarts per 10,000-mile interval—exceeding the 4.4-quart capacity. Another burned 2 quarts in 150 miles. Toyota issued internal service bulletin T-SB-0169-16 for the condition but did not notify warranty-eligible owners; coverage is declined outside warranty.
Catastrophic piston and internal engine failure appears in multiple narratives: pistons disintegrating, piston rods breaking through the engine casing, causing violent shaking, loud bangs, and smoke. These failures occur with no prior warning lights and destroy the engine completely. One owner had two 2012/2013 Prius engines fail identically. Mileage ranges from 40 mph at 196,000 miles to 140,000 miles during highway driving.
Cold-start knock or rattle happens on first startup after extended parking, especially in winter or after multi-day sits. Severity varies; check engine light may appear then clear.
Engine stall and power loss occurs during highway and surface street driving at 35–65 mph with no warning. Restarting restores function temporarily. NHTSA recall 18V684 (Hybrid Propulsion System) was issued but parts remain unavailable at dealers.
One owner also reported plastic oil filter housing warping from heat, preventing routine oil service.
Same Toyota Prius engine reports on nearby years: 2010 · 2011 · 2012 · 2014
Failure modes owners describe
Excessive oil consumption
Engine burning 1 quart per 2,000 miles or more with no external leaks or visible smoke. Owners report adding up to 1 quart per 2,000 miles (5 quarts per 10,000-mile interval), which exceeds the 4.4-quart capacity. Some report 2 quarts in 150 miles. No drips found underneath. Issue persists regardless of oil brand (synthetic vs. conventional).
When: Occurs throughout ownership; one owner noted 92,000 miles at time of report
Symptoms owners cite: Oil level drops rapidly between service intervals; No visible leaks underneath vehicle; No smoke from exhaust; Check engine light may appear; Potential exhaust system damage from oil vapor
Repairs/costs cited: Switching to Castrol synthetic oil slowed consumption for one owner but did not stop it. Internal service bulletin T-SB-0169-16 exists for this condition but Toyota did not notify owners within warranty period; refused to cover out-of-warranty cases.
Recalls/TSBs owners mention: Toyota issued internal service bulletin T-SB-0169-16 for excessive oil consumption. Extended warranty coverage limited to internal engine part breakage only, not the root cause of oil loss or damage from insufficient oil.
Cold start engine knock and rattle
Rattling or knocking noise from engine on first morning startup after vehicle sits unused for extended periods, particularly in cold weather or after multi-day parking. Noise severity varies from slight to severe. No consistent external damage or mechanical cause identified by owner investigation.
When: Occurs on cold startup after vehicle sits 1–2 days in driveway; reported in November 2018, January 2019, February 2019, and December 2017
Symptoms owners cite: Engine rattle or knock on initial cold start; Noise resolves after engine runs briefly; Check engine light may appear then clear automatically; Noise intensity varies by ambient temperature and sit time
Repairs/costs cited: One owner suggests intake manifold as possible cause based on online research. Owner requested dealer investigation beyond recall remedy.
Recalls/TSBs owners mention: Dealers referenced NHTSA recall 18V684 (Hybrid Propulsion System) as potential fix, though complaint narrative suggests this recall did not address the root cause.
Cracked cylinder head
Internal engine crack, specifically in the cylinder head/head gasket area. Leads to stalling, stuttering during electric-to-motor transitions, and severe engine shaking. Dealer diagnosis: cracked head gasket rendering vehicle mechanically totaled. Occurs despite adherence to maintenance schedule.
When: Sudden onset during normal operation; approximately 92,000 miles reported in one instance
Symptoms owners cite: Engine stall and stutter when switching from electric to motor operation; Severe engine shaking under load; Check engine light illuminates; Problem persists after battery and spark plug replacement
Repairs/costs cited: Initial dealer diagnosis (battery and spark plugs) proved incorrect. Actual repair requires engine head replacement. One owner reported vehicle declared mechanically totaled by dealer.
Piston and internal engine structural failure
Catastrophic failure of internal engine components—pistons disintegrating, piston rods breaking and striking engine casing. Results in violent shaking, smoke, and complete engine failure during normal driving. Owners report no prior warning signs. Multiple instances in this cluster suggest a systemic issue.
When: Occurs at 140,000 miles, 196,000 miles, and 40 mph during active driving with no warning
Symptoms owners cite: Violent engine shaking under acceleration; Loud bang or rattling noise from engine; Smoke from engine compartment; Immediate loss of drivability; No warning lights prior to failure
Repairs/costs cited: Requires complete engine replacement. One owner reported two Prius engines failed with identical symptoms. Mechanic diagnosis: piston disintegrated, piston rod broke through casing.
Engine stall and loss of power during highway driving
Engine cuts off suddenly while vehicle is in motion at highway speeds with no warning lights. Vehicle loses all electrical power and becomes undrivable. Issue appears intermittent; restarting engine restores function temporarily. Creates serious safety hazard on roadways.
When: Occurs during active driving at 35–40 mph and highway speeds; one incident on freeway at 10 pm
Symptoms owners cite: Complete engine shutdown with no warning; Loss of all electrical power; Vehicle unable to accelerate or move; Issue resolves after restart; No check engine light (in most cases) or maintenance light may appear after restart
Repairs/costs cited: One incident resolved by turning vehicle off and back on, though issue is recurring. Dealer unable to diagnose root cause in at least one case.
Recalls/TSBs owners mention: Dealer claimed recall had been serviced in one instance, but symptom returned. Owner referenced existing recall for 2010–2013 Prius power loss issue.
Engine overheating from coolant loss
Engine overheating warning light comes on after significant coolant loss. One documented case involved object striking radiator and creating hole, but owner notes lack of warning until coolant reservoir depleted—making warning light ineffective for prevention.
When: Approximately 15 miles after coolant loss event began
Symptoms owners cite: Engine overheating warning light illuminates; Engine no longer functions after overheat event; Coolant leak present but not visible until warning light
Repairs/costs cited: Radiator replacement required. Engine potentially damaged beyond simple coolant refill.
Plastic oil filter housing degradation
Oil filter housing constructed from plastic fails over time due to heat generated by the engine. Housing loses structural integrity and ability to maintain seal, making oil filter removal difficult or impossible during routine service.
When: Over time during normal operation; issue discovered during routine oil change
Symptoms owners cite: Oil filter housing difficult or impossible to separate; Plastic housing warps or deforms from heat; Prevents routine maintenance
Repairs/costs cited: Requires oil filter housing replacement. Mechanic unable to complete oil change due to housing failure.
Hybrid propulsion system fault—parts unavailability for recall 18V684
Owners notified of NHTSA recall 18V684 (Hybrid Propulsion System) but dealers unable to obtain replacement parts due to supply shortage. Vehicles exhibit rough idle, battery warning light, and stalling while awaiting part availability. Recall remedy delayed indefinitely.
When: At 65,000 miles when recall notification received; parts unavailable for extended period
Symptoms owners cite: Vehicle rides roughly; Battery warning indicator illuminates; Vehicle stalls; Maintenance required light appears
Repairs/costs cited: Parts unavailable; no timeline provided by manufacturer or dealer.
Recalls/TSBs owners mention: NHTSA recall 18V684 issued but parts not distributed to dealers. Manufacturer unable to confirm when parts would become available.
Synthesized from 15 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
2013 Toyota prius. Consumer would like reimbursement for repairs and parts for the defected oil filter housing part. *ta the consumer stated the vehicle was equipped with a cheap, plastic oil filter housing. Over time, the heat generated by the engine caused the oil filter housing to fail to maintain its required shape. Consequently, when she took the vehicle for a routing oil change, it was…
The engine terribly shakes and got a loud knocking noise during an initial stationary cold start in the morning during winter. It happened 3 times this december 2017.
Had engine trouble with your 2013 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 engine problem on the 2013 Toyota Prius?
It's a documented issue but not catastrophic. 15 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Across the 12 complaints that reported odometer mileage, most engine failures cluster between 65,000 and 140,000 miles, with the median around 84,000. A quarter of owners report trouble before 65,000; a quarter make it past 140,000. 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 $3,100 for engine 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 engine?
No active recalls currently cover engine 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/2013/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.