Toyota brand mark

2021 Toyota Yaris problems

A 2021 Toyota Yaris is now 5 years old, so an average example has covered around 67,500 miles. A late-run car · the most reliable part of the generation, but higher-mileage wear items are usually the deciding factor. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2021 car has usually reached the mileage where they appear.

Compiled & reviewed by the VehicleFaults Research Team

Quick answer

The 2021 Toyota Yaris is 5 years old, so an average example has covered roughly 67,500 miles. At that mileage 1 of the documented faults are already due, so check those first. A further 4 typically appear later in the car's life.

Faults a 2021 example has usually reached

Documented onset mileage is at or below the ~68k miles an average 2021 car has covered.

Body/InteriorMedium

Water ingress into the boot causing damp carpets, musty odours, and heavy cabin condensation.

Typically appears
5+ years / 50,000+ miles
What to inspect
Lift the boot floor and inspect the spare wheel well for standing water or rust. Feel the rear seatbelt lowers and the edges of the boot carpet for dampness.

Faults that appear at any mileage

Age, electronics and build-related issues that are not mileage-driven.

BrakesMedium

Rear brake corrosion because regen does most of the braking

Typically appears
Age-related
What to inspect
Inspect rear discs and drums for scaling
ElectricalMedium

12V auxiliary battery failure causing no-start

Typically appears
5+ years
What to inspect
Check the 12V battery condition, not just the hybrid pack
InfotainmentMedium

Touch 2 screen delamination, system freezing, or ghost touches operating the unit unprompted.

Typically appears
4-8 years
What to inspect
Turn the ignition on and test all corners of the touch screen for responsiveness. View the display from a sharp angle to spot air bubbles or peeling beneath the glass.

Faults still ahead of this car

Typically appear later than this year's average mileage · worth budgeting for rather than inspecting.

BatteryHigh

Hybrid battery capacity decline on high-mileage or long-stood cars

Typically appears
100,000+ miles
What to inspect
Run a hybrid health check and watch the state-of-charge behaviour
SuspensionLow

Rear beam bush wear

Typically appears
80,000+ miles
What to inspect
Listen for knocks over bumps
Engine CoolingHigh

Water pump bearing wear leading to coolant leaks and potential engine overheating.

Typically appears
60,000-80,000 miles
What to inspect
Shine a torch down the auxiliary belt side of the engine block. Look closely for a crusty pink residue around the water pump housing and pulley.
SteeringMedium

Knocking noise or play originating from worn intermediate steering shaft splines or the universal joint.

Typically appears
70,000-100,000 miles
What to inspect
With the engine switched off, rapidly rock the steering wheel left and right by a few degrees. Listen and feel for a distinct metallic clunk from the driver's footwell.

Inspecting a 2021 Toyota Yaris?

Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.

Check this exact car

Toyota Yaris · frequently asked questions

Do Yaris hybrid batteries fail often?

Rarely. Toyota extends cover with annual hybrid health checks, which is a strong retail story.

What actually strands a Yaris hybrid?

The small 12V battery, especially after standing on a forecourt.

Is the 1.0 petrol worth stocking?

For budget retail yes, but the hybrid commands a stronger margin.

What is the cambelt replacement interval on the 1.5 hybrid?

The 1.5-litre hybrid engines, including the 1NZ-FXE in the XP130 and the M15A-FXE in the XP210, use a timing chain rather than a cambelt. These chains are designed to last the lifetime of the vehicle and require no scheduled replacement, provided the engine receives regular oil changes to prevent tensioner wear.

Are there any specific MOT failures to watch for on the newer XP210?

On the XP210, early MOT data highlights occasional failures for headlight aim, particularly on models fitted with advanced LED units. The self-levelling sensors can become misaligned or fail if the suspension takes a heavy knock. Always check the beam pattern against a wall during your forecourt appraisal.

How can I tell if the e-CVT gearbox is failing?

Toyota's e-CVT is mechanically simple and failures are exceptionally rare. However, a loud, speed-dependent whine or harsh juddering when transitioning between electric and petrol power indicates planetary gear wear or transaxle damper failure. Check the transmission fluid history, even though Toyota often considers it sealed for life.

Other Yaris model years