Case file · TOYOTA-PRIUS-2010-2015 · Field document
Toyota Prius 2010–2015 · Pre-purchase checklist
Bring this to the inspection. Every check below is specific to this generation's documented failure modes, not generic used-car advice.
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Check the oil level on the dipstick cold, then ask when it was last topped up. A 2010–2012 car burning a quart every 1,000–2,000 miles is the single most common XW30 problem.
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Ask whether the EGR valve, EGR cooler, and intake manifold have ever been cleaned, and at what mileage. Heavy carbon here causes rough idle/misfires and, left long enough, head-gasket failure.
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Listen for a cold-start rattle for the first few seconds, a known symptom tied to oil starvation/carbon on these engines.
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Confirm by VIN that the 2010 brake recalls (10V-039 and 13V-235) and the inverter (IPM) recalls 14V-053, 18V-684 and 20V-369 were performed on cars they cover (a Toyota dealer can check).
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Get the hybrid battery health checked (Dr. Prius app or a shop with Techstream). A tired 12V or HV battery is normal wear at this age.
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Watch the temp behavior and coolant level for any sign of inverter/electric water pump weakness on cars over 100k.
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Scan for stored codes. P0AA6, P3000-series, or EGR/misfire codes tell you about hybrid and intake health before you buy.
2010–2012 (highest oil-consumption rate, pre-revision pistons)