How To Buy A Used Prius -

During your test drive, if the battery display goes from "full" to "empty" in just a few minutes of driving, the battery is likely weak.

The hybrid battery is the most expensive component to replace ($1,500–$3,000+). Do not rely on the dashboard "bars" alone.

Beyond the hybrid tech, check these Prius-specific weak spots: how to buy a used prius

Buy a cheap Bluetooth OBD2 scanner (like OBDLink LX ) and run a "Life Expectancy Test" during your inspection. It will give you a percentage score of the battery's remaining capacity.

Use the NHTSA Recall Lookup to ensure software updates for the inverter or brake system have been completed. During your test drive, if the battery display

Frequent oil changes (every 5,000 miles) are vital because the engine stops and starts constantly, which can cause moisture buildup.

Legendary reliability. Many reach 300,000+ miles, though they are now old enough that a hybrid battery replacement is almost guaranteed if it hasn't been done. Beyond the hybrid tech, check these Prius-specific weak

What is your or the specific year you are looking at so I can give you a more targeted checklist?