Is it safe to drive with Toyota Prius inverter coolant pump failure?

Generally safe to drive for short distances, but the fault should be diagnosed and repaired promptly.

🟢 Toyota Prius inverter coolant pump failure

Toyota Prius 2004

Safe to Drive?

🚫 Do NOT Drive

Urgency Level

🔴 Fix Immediately

Prius warning lights, reduced power, hybrid system fault. Inverter overheating. This fault code is stored when the engine control unit detects a specific fault condition. Common causes include sensor failures, wiring faults, and component wear. Always read additional fault codes before replacing parts — multiple codes together provide a clearer diagnosis. Clear the code after repair and test drive to confirm the fault does not return.

🔍 Symptoms

📍 Toyota Prius 2nd/3rd gen

⚙️ Possible Causes

Toyota Prius 2nd/3rd gen Possible: Prius inverter cooling pump: the electric pump that cools the inverter fails silently and causes inverter overheating damage if not caught. Symptoms: triangle warning + hybrid system fault. The pump runs on a separate cooling loop from the engine — check

Onarım / Çözüm

Based on 112 driver confirmations

0 worked · 0 did not · ⚪ Unverified

🧾 Driver Reports

✅ Fixed Prius inverter cooling pump: the electric pump that cools the inverter fails silently and causes inverter overheating damage if not caught. Symptoms: triangle warning + hybrid system fault. The pump runs on a separate cooling loop from the engine — check

Prius inverter cooling pump: the electric pump that cools the inverter fails silently and causes inverter overheating damage if not caught. Symptoms: triangle warning + hybrid system fault. The pump runs on a separate cooling loop from the engine — check this reservoir too. Pump failure signs: pump not running when ignition on, pump vibrating excessively. Replace pump proactively on 2004-2009 Prius at 150k miles — $60-100 for pump, 1 hour DIY. Inverter damage from overheating costs $3000-5000. Cheap prevention.

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