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 MANUALSTOYOTA2025HIGHLANDER XLE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSRESTRAINTS CONTROL SYSTEMSPRE-COLLISION SYSTEM - DIAGNOSTICS - INTRODUCTION
2025 Toyota Highlander XLE, FWD
Pre-Collision System - Diagnostics - Introduction
2025 Toyota Highlander XLE, FWDSECTION Pre-Collision System - Diagnostics - Introduction
- Pre-Collision System
- Precaution [12/2019 - 09/2020]
- Precaution [09/2020 - 10/2022]
- Precaution [10/2022 - 11/2023]
- Precaution [11/2023 - ]
- Parts Location [12/2019 - 09/2020]
- Parts Location [09/2020 - 11/2023]
- Parts Location [11/2023 - ]
- System Diagram [12/2019 - 09/2020]
- System Diagram [09/2020 - 11/2023]
- System Diagram [11/2023 - ]
- How To Proceed With Troubleshooting [12/2019 - 09/2020]
- How To Proceed With Troubleshooting [09/2020 - ]
- Customize Parameters [12/2019 - 11/2023]
- Customize Parameters [11/2023 - ]
- Initialization [12/2019 - ]
- Utility [12/2019 - 09/2020]
- Utility [09/2020 - 11/2023]
- Utility [11/2023 - ]
- Problem Symptoms Table [12/2019 - 09/2020]
- Problem Symptoms Table [09/2020 - 10/2022]
- Problem Symptoms Table [10/2022 - 11/2023]
- Problem Symptoms Table [11/2023 - ]
- Terminals Of Ecu [12/2019 - ]
- Diagnosis System [12/2019 - 09/2020]
- Diagnosis System [09/2020 - 11/2023]
- Diagnosis System [11/2023 - ]
- DTC Check / Clear [12/2019 - ]
- Freeze Frame Data [12/2019 - 09/2020]
- Freeze Frame Data [09/2020 - 11/2023]
- Freeze Frame Data [11/2023 - ]
- Fail-Safe Chart [12/2019 - 09/2020]
- Fail-Safe Chart [09/2020 - 11/2023]
- Fail-Safe Chart [11/2023 - ]
- Data List / Active Test [12/2019 - 09/2020]
- Data List / Active Test [09/2020 - 11/2023]
- Data List / Active Test [11/2023 - ]
- Diagnostic Trouble Code Chart [12/2019 - 09/2020]
- Diagnostic Trouble Code Chart [09/2020 - 10/2022]
- Diagnostic Trouble Code Chart [10/2022 - 11/2023]
- Diagnostic Trouble Code Chart [11/2023 - ]
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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.