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TOYOTA HIGHLANDER (Gas/Hybrid) 2020-2026: DIY Made Simple: Master Your 4th-Gen Highlander SUV Cut Costs Avoid Breakdowns Diagnose Common Issues & Main
Paperback
General ReferenceTransportation General
Publisher: Independently Published
Published: Sep 22 2026
Pages: 334
Weight: 1.71
Height: 0.70 Width: 8.50 Depth: 11.00
Language: English
2.4L T24A-FTS Turbo and 2.5L A25A-FXS Hybrid Engines; Front-Wheel Drive and All-Wheel Drive Models; 8-Speed Automatic and Hybrid ECVT Transmissions
Stop Guessing. Diagnose the Problem. Repair It Correctly. A warning light comes on. The engine will not start, the Hybrid system will not enter READY, the power liftgate suddenly stops working, the A/C blows warm, or several electrical systems suddenly report faults at the same time.This manual covers U.S.-market fourth-generation Toyota Highlander SUVs from 2020 through 2026 within the Turbo and Hybrid powertrain range, including:
- 2020-2026 Toyota Highlander Hybrid Models
- 2023-2026 Toyota Highlander 2.4L Turbo Models
- Applicable FWD and Mechanical AWD Models
- Dynamic Torque Vectoring AWD and Hybrid Electronic On-Demand AWD Configurations
The 2020-2022 3.5L V6 gasoline Highlander is not part of the primary repair scope and is covered only where necessary for correct vehicle identification and to prevent incorrect application of Turbo or Hybrid procedures. Grand Highlander models, Plug-in Hybrid models, battery-electric vehicles, non-U.S.-market specifications, and earlier Highlander generations are not included.
What This Manual Helps You Do- Diagnose mechanical, electrical, Turbo, Hybrid, AWD, body, and climate-control faults accurately.
- Perform scheduled maintenance and suitable DIY repairs correctly.
- Avoid unnecessary parts replacement through proper testing, inspection, scan data, and root-cause diagnosis.
- Complete resets, initializations, relearns, road tests, final checks, and recognize when professional service is required.
- Step-by-step maintenance, repair, and troubleshooting.
- Engine, Turbo, Hybrid, AWD, brakes, steering, suspension, wheels, and tires.
- Fluids, capacities, torque specs, tools, parts, and service limits.
- Battery, fuses, relays, wiring, starting, READY mode, and DTC diagnosis.
- Windows, locks, liftgate, lights, wipers, HVAC, cameras, ADAS, resets, and final checks.
- No-start, no-READY, dead battery, battery drain, and warning lights.
- Overheating, leaks, misfires, rough idle, low power, and Turbo issues.
- Brake, EPB, steering, suspension, axle, AWD, tire, and driveline problems.
- Hybrid cooling, inverter, regenerative braking, and Hybrid AWD faults.
- Windows, locks, liftgate, wipers, Smart Key, HVAC, cameras, and ADAS issues.
From the first warning light to the final scan report, this manual helps you move confidently from uncertainty to accurate diagnosis, responsible repair, and complete final verification.
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