12V auxiliary battery flattening when the car sits unused
- Typically appears
- Age-related
- What to inspect
- Leave locked overnight and check it wakes normally

A 2025 Toyota Yaris Cross is now a year old, so an average example has covered around 13,500 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 2025 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
The 2025 Toyota Yaris Cross is a year old, so an average example has covered roughly 13,500 miles. At that mileage most documented faults are still ahead of it, so servicing evidence matters more than wear. A further 3 typically appear later in the car's life.
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
Typically appear later than this year's average mileage · worth budgeting for rather than inspecting.
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
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.