FIX A DEAD PRIUS! (2005) Detailed 12V Battery Replacement Guide. Accessing the Trunk & Testing

Is your 2005 Toyota Prius (Gen 2) completely dead? Remote not working? Won't power up? The culprit might be the small 12-volt accessory battery located in the trunk - and it can be a little tricky to access when the car is locked down!

In this step-by-step guide, I walk you through the entire process, from diagnosing the dead battery to successfully starting the car again with a new one.
Timestamp
0:00 Intro & The Problem: Is Your Prius Completely Dead? (Remote Key Won't Work)
0:48 Required Tools
1:10 Accessing the Trunk (Locked Car): Folding the Rear Seats
2:10 Emergency Access: Using the Internal Trunk Release Handle
2:30 Verification: Testing the Battery Voltage with a Multimeter
2:45 Safety: Disconnecting Hybrid Battery Safety Switch
3:00 Removal: Disconnecting Terminals
5:00 The Swap: Removing the Old Battery & Installing the New One (AutoZone)
5:40 Installation: Connecting Terminals (Positive First!)
8:40 The Test: Starting the car & Verifying the Fix!
9:05 Wrap-up & Disclaimer (Safety Warning & Final Thoughts)

🛠️ Tools Used: Multimeter, 10mm , wrench (for terminals), New 12V Battery.

Disclaimer (Important!):

⚠️ SAFETY WARNING: DO AT YOUR OWN RISK ⚠️

Working with automotive electrical systems and batteries can be dangerous. Always wear appropriate safety gear (gloves/eyewear), disconnect the negative terminal first, and consult your vehicle's manual. I am not a professional mechanic; this video is for informational purposes only. You assume all responsibility for any damage or injury that may result from following this guide. Be Safe!

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