On 2010–2015 models, the Exhaust Gas Recirculation (EGR) valve and cooler clog with soot, which can eventually lead to a blown head gasket.
Beyond the standard used car checks, focus on these Prius-specific areas:
This master warning light on the dash usually means a failed hybrid battery or inverter. Unless the price is low enough to cover a $1,600 refurbishment, keep looking. buying a used prius with over 100 000 miles
Generation 3 models (2010–2015) are known for burning oil once they cross 100k miles. Check the dipstick; if it’s bone dry, the previous owner may have caused engine damage. 2. Service History Milestones
Most common on the used market. Best looking/driving of the older models, but watch for the head gasket and EGR issues mentioned above. On 2010–2015 models, the Exhaust Gas Recirculation (EGR)
At 100k miles, a Prius needs more than just oil changes. Verify if the following have been done:
Buying a high-mileage Prius (100k–200k+ miles) is often a smart move because the powertrain is famously over-engineered. However, at this age, your risks shift from "engine failure" to "maintenance neglect." 1. The "Big Three" Inspection Points Generation 3 models (2010–2015) are known for burning
Check the vent next to the rear seat. If it’s clogged with pet hair or dust, the battery has been running hot, shortening its lifespan. 3. The "Generation" Cheat Sheet