Rear discs corroding because regen does most of the braking
- Typically appears
- 30,000+ miles
- What to inspect
- Inspect the rear discs for scaling and pitting

A 2021 Toyota Yaris Cross is now 5 years old, so an average example has covered around 67,500 miles. This is the first model year of the generation · early-build cars carry the highest share of teething faults and the most recall activity, so check the service history for completed recall work. 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
The 2021 Toyota Yaris Cross is 5 years old, so an average example has covered roughly 67,500 miles. At that mileage 3 of the documented faults are already due, so check those first.
Documented onset mileage is at or below the ~68k miles an average 2021 car has covered.
Rear discs corroding because regen does most of the braking
AWD-i rear motor faults on four-wheel-drive versions
Bush and drop link wear from firm suspension on UK roads
Age, electronics and build-related issues that are not mileage-driven.
12V auxiliary battery flattening when the car sits unused
Infotainment and connected-services glitches
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carNo · Toyota hybrid batteries are among the most durable, and hybrid health checks extend cover.
The regen system means the friction brakes rarely get hot enough to clean themselves.
Very fast · hybrid small SUVs are among the strongest used sellers in the UK.
Only for rural buyers; the front-drive version is cheaper to maintain.