At 100k miles, a Prius needs more than just oil changes. Verify if the following have been done:

Beyond the standard used car checks, focus on these Prius-specific areas:

This is the elephant in the room. If it hasn't been replaced, it’s likely nearing the end of its life (usually 12–15 years or 150k miles). Ask for a battery health test or use a Bluetooth OBDII scanner with the "Dr. Prius" app to check the blade voltages yourself.

Very reliable and much better fuel economy (50+ MPG). If you find one with 100k miles, it was likely a rideshare vehicle—check the interior wear. 4. Red Flags to Walk Away From