IsItAGoodCar

Common Problems with the
2020–2024 Toyota Yaris Mk4 / Yaris Cross

We've identified 4 known issues that can affect the 2020–2024 Toyota Yaris Mk4 / Yaris Cross. None are considered critical, but they're worth knowing about before you buy.

4
Known Issues
0
Serious
1
Moderate
3
Minor

The 2020–2024 period has 2 more issues than the Toyota Yaris Mk4 / Yaris Cross average across all year periods.

All Known Issues

Petrol Particulate Filter (PPF) Clogging

ModerateExhaust & Emissions

If driven exclusively in urban "EV" mode, the PPF can become clogged as the engine doesn't reach regeneration temperature.

Estimated cost: £0 (Motorway drive)Affects: 2020–2025

Typical symptoms

  • •PPF warning light
  • •Engine runs more frequently than normal

What to inspect before you buy

  • ✓Ask about the car's typical journey types; a 20-minute motorway run usually clears this

12V Auxiliary Battery Drain

MinorElectrics & Electronics

The small 12V battery can go flat if left for 1-2 weeks, particularly common on low-mileage cars.

Estimated cost: £120–£220Affects: 2020–2025

Typical symptoms

  • •Car fails to start
  • •Remote app fails
  • •Weak cranking

What to inspect before you buy

  • ✓Check battery health; Toyota often replaces these with improved units under warranty

Road Noise at Motorway Speeds

MinorInterior & Trim

Due to lightweight sound insulation, road and wind noise can be intrusive at higher speeds.

Estimated cost: N/AAffects: 2020–2025

Typical symptoms

  • •Noticeable road noise above 50mph
  • •Wind noise around doors

What to inspect before you buy

  • ✓Test drive at motorway speeds and assess noise levels

Headlight Condensation

MinorElectrics & Electronics

Some owners report condensation building up inside the headlight units, which can affect light output.

Estimated cost: £0–£200Affects: 2020–2024

Typical symptoms

  • •Visible moisture inside headlight lens
  • •Reduced light output
  • •MOT advisory

What to inspect before you buy

  • ✓Inspect the headlights for moisture after the car has been parked overnight

Buying Tips for the 2020 Toyota Yaris Mk4 / Yaris Cross

  • ✓The 12V battery is the most common "non-start" culprit; ensure the car is driven at least once a week.
  • ✓The Yaris Cross AWD-i uses an electric rear motor similar to the RAV4; check for any early signs of connector corrosion.
  • ✓Road noise can be intrusive at motorway speeds due to lightweight insulation.
2025 Toyota Yaris Mk4 / Yaris Cross

Browse 2020–2024 Toyota Yaris Mk4 / Yaris Cross in our Directory

View MOT history, registration data, and reliability scores for 2020–2024 Toyota Yaris Mk4 / Yaris Cross vehicles.

View 2020–2024 Directory

Other Toyota Yaris Mk4 / Yaris Cross Year Periods

2020–20242025

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