Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Toyota PriusFACTORY OEM SERVICE PROCEDURE
Inverter Radiator: Installation
- INSTALL INVERTER RADIATOR
Install the inverter radiator with the 3 nuts.
Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)
- CONNECT 2 WATER HOSES
- INSTALL WATER TEMPERATURE SWITCH
Torque: 7.4 N.m (75 kgf.cm, 65 in.lbf)
- CONNECT WATER TEMPERATURE SWITCH CONNECTOR
- CONNECT AMBIENT TEMPERATURE SENSOR
- INSTALL FRONT BUMPER COVER (See COMPONENTS )
- FILL WITH HV COOLANT (See ON-VEHICLE REPAIR )
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.