Model directory 
Toyota: common problems and service schedules by model
200 verified faults across 31 models, from Brimly's Vehicle Knowledge Base — each checked by a human before publication. Below is every Toyota model with its most serious known faults; open one for its problems by generation, the mileage they appear at and its service schedule.
- Camry Watch for:
- Hybrid inverter bolt not tightened — loss of drive (recall)
- Instrument cluster blank at start-up (recalls)
- RAV4 Watch for:
- Denso low-pressure fuel pump failure (recall)
- High-voltage wiring harness and rear drive-motor cable corrosion (Hybrid AWD)
- Tacoma Watch for:
- Front driveshaft CV joint can deform and break (recall)
- Instrument cluster can go blank at startup (recall)
- Land Cruiser Watch for:
- 10-speed automatic may not fully disengage in Neutral (2021–2024 recall)
- Transmission control fault can over-rev the 10-speed automatic and leak fluid (MY2025 recall)
- Land Cruiser Prado Watch for:
- Instrument cluster can miss warning lights at start-up (2024–2025 recall)
- Panoramic camera image can freeze or go blank when reversing (recall)
- Passo Watch for:
- CVT behaviour
- Light build and road noise
- Prius Watch for:
- EGR & intake carbon build-up (much reduced vs 3rd gen)
- Limited long-term reliability history
- Harrier Watch for:
- 12V battery drain and hybrid battery care
- Infotainment glitches and sensor niggles
- Alphard Watch for:
- New-generation infotainment and software quirks
- Power sliding door care
- Noah Watch for:
- Hybrid EGR upkeep on the carried-over 1.8
- Power sliding door care
- Vellfire Watch for:
- New-generation infotainment and software quirks
- Power sliding door care
- Voxy Watch for:
- Hybrid EGR upkeep on the carried-over 1.8
- Power sliding door care
- Wish Watch for:
- CVT wear and judder at high mileage
- Suspension wear on a loaded MPV
- Aqua Watch for:
- 12V auxiliary battery failure
- New bipolar NiMH battery — limited long-term data
- C-HR Watch for:
- 12V auxiliary battery drain (hybrid)
- New model — limited long-term data
- Corolla Fielder Watch for:
- CVT fluid sensitivity
- Hybrid 12V and traction-battery ageing
- Crown Watch for:
- New-generation infotainment and software quirks
- Newer 2.4 turbo Dual-Boost hybrid — limited history
- Probox Watch for:
- High-mileage wear from commercial use
- NZ engine wear at very high mileage
- Sienta Watch for:
- Power sliding-door mechanism wear
- Hybrid 12V auxiliary battery
- Vitz Watch for:
- CVT fluid sensitivity
- Hybrid 12V drain and battery ageing
- Raize Watch for:
- e-Smart Hybrid ECU recall (early 2021 build)
- D-CVT behaviour and fluid maintenance
- Roomy Watch for:
- CVT behaviour and fluid neglect
- Daihatsu certification-test scandal (built by Daihatsu)
- Corolla Watch for:
- Corolla Hybrid steering and brake-assist recalls
- Denso low-pressure fuel pump failure (recall)
- HiLux Watch for:
- Dust ingestion past the air filter (2015-2020 diesel)
- 2.8 (1GD-FTV) DPF clogging and active-regen faults
- Land Cruiser 70 Series Watch for:
- DPF regeneration issues on short trips (post-2016 V8 diesel)
- 1VD-FTV injector wear and fuel dilution of the oil
- Yaris Watch for:
- 12V battery drain on short trips
- Gasoline particulate filter clogging on short urban trips
- Yaris Cross Watch for:
- 12V battery drain on short trips
- Gasoline particulate filter clogging on short urban trips
- 4Runner Watch for:
- Secondary air injection pump/valve failure (early cars)
- Water pump seepage/failure
- Corolla Cross Watch for:
- Hybrid battery and 12V battery age over time
- New model — limited long-term data
- Fortuner Watch for:
- DPF incomplete regeneration, white smoke and oil dilution (2.8/2.4 diesel)
- Injector, EGR and turbo carbon build-up at high mileage
- Highlander Watch for:
- Denso low-pressure fuel pump failure (recall)
- V6 8-speed torque-converter shudder and hesitation
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