Common Problems with the
2021–2024 Toyota Hilux (AN120)

We've identified 3 known issues that can affect the 2021–2024 Toyota Hilux (AN120). 1 of these are serious faults that could be expensive to repair.

3
Known Issues
1
Serious
2
Moderate
0
Minor

The 2021–2024 period has 1 more issue than the Toyota Hilux (AN120) average across all year periods.

All Known Issues

Chassis and Underbody Corrosion

SeriousBodywork & Rust

Road salt and coastal exposure can cause the chassis, rear crossmember and suspension mounts to rust.

Estimated cost: £300–£1,500Affects: 20162024

Typical symptoms

  • Visible rust on chassis
  • MOT advisories for corrosion
  • Flaking metal underneath

What to inspect before you buy

  • Inspect the chassis, rear crossmember and suspension mounts for rust

Alternator Failure

ModerateElectrics & Electronics

The alternator can fail, particularly on higher-mileage trucks, leading to battery drain and electrical issues.

Estimated cost: £250–£450Affects: 20162024

Typical symptoms

  • Battery warning light
  • Dimming headlights
  • Electrical accessories failing

What to inspect before you buy

  • Check battery voltage with engine running (should be ~14V)
  • Look for battery warning light

Rear Differential Oil Seal Leak

ModerateGearbox & Transmission

The rear differential oil seal at the prop shaft connection can leak, particularly on trucks used for towing.

Estimated cost: £200–£400Affects: 20162024

Typical symptoms

  • Oil dripping from rear differential
  • Prop shaft area wetness
  • Rear diff noise

What to inspect before you buy

  • Inspect the rear differential and prop shaft connection for oil leaks

Buying Tips for the 2021 Toyota Hilux (AN120)

  • Check the chassis for rust, especially if used for launching boats or near the coast.
  • Verify if the DPF '5th injector' issue has been addressed or if the DPF recall was completed.
  • Listen for a squeak from the rear leaf springs, which can indicate dry bushes or cracked leaves.
  • Ensure the 4WD system engages and disengages smoothly in both high and low range.

Browse 2021–2024 Toyota Hilux (AN120) in our Directory

View MOT history, registration data, and reliability scores for 2021–2024 Toyota Hilux (AN120) vehicles.

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