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.
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HOMESERVICE MANUALSTOYOTA2025GRAND HIGHLANDER HYBRID LIMITEDREPAIR AND DIAGNOSISRESTRAINTSRESTRAINTS CONTROL SYSTEMSOCCUPANT CLASSIFICATION SYSTEM - DIAGNOSTICS - INTRODUCTION
2025 Toyota Grand Highlander Hybrid Limited
Occupant Classification System - Diagnostics - Introduction
2025 Toyota Grand Highlander Hybrid LimitedSECTION Occupant Classification System - Diagnostics - Introduction
- Occupant Classification System
- Precaution [06/2023 - ]
- Parts Location [06/2023 - ]
- System Diagram [06/2023 - ]
- System Description [06/2023 - ]
- How To Proceed With Troubleshooting [06/2023 - ]
- Operation Check [06/2023 - ]
- Initialization [06/2023 - 09/2024]
- Initialization [09/2024 - ]
- Problem Symptoms Table [06/2023 - ]
- Terminals Of Ecu [06/2023 - ]
- Freeze Frame Data [06/2023 - ]
- Fail-Safe Chart [06/2023 - ]
- Data List / Active Test [06/2023 - ]
- Diagnostic Trouble Code Chart [06/2023 - 09/2024]
- Diagnostic Trouble Code Chart [09/2024 - ]
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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.