Our Verdict
The Yaris is the reliability champion of the supermini class. Toyota's legendary build quality means these cars simply don't break. The hybrid powertrain is silky smooth and returns exceptional fuel economy in urban driving. It's not the most exciting car to drive, but if dependability is your priority, nothing else comes close.
Introduction
Toyota has built its reputation on bulletproof reliability, and the Yaris is the embodiment of that philosophy. The third-generation Yaris (2011–2020) established itself as the most dependable supermini you could buy. The fourth-generation (2020–present) raised the bar further with an all-new platform, striking design, and an even more efficient hybrid system.
The Yaris Hybrid is the standout choice — in urban driving, it can achieve 70+ mpg while operating in near-silence. The self-charging hybrid system requires no plug-in charging and has a proven track record spanning millions of Toyota hybrid sales worldwide.
If you want a car that will never let you down, the Yaris is the answer. It won't thrill you on a B-road, but it will still be running perfectly when everything else has rusted away.
Pros & Cons
✓ Pros
- Legendary Toyota reliability — consistently top of warranty data surveys
- Hybrid returns 60–70+ mpg in urban driving with zero effort
- Self-charging hybrid — no plug required, no range anxiety
- Very low running costs — minimal maintenance needs
- Excellent safety ratings (5-star Euro NCAP on Mk4)
- Strong residual values reflect the reliability reputation
✗ Cons
- Not engaging to drive — steering is numb, body roll is noticeable
- CVT gearbox drones under hard acceleration (rubber band effect)
- Interior quality is functional rather than premium
- Rear seat space is tight, especially on Mk3
- Boot is small (286 litres Mk4) — worst in class
- Higher purchase price than mainstream rivals reflects Toyota premium
Known Issues & Common Problems
Very few known issues
Low RiskThe Yaris has remarkably few documented faults. Toyota's quality control and simple mechanicals mean problems are rare. This is genuinely one of the most reliable cars on sale.
When to check: N/AHybrid battery degradation
Low RiskToyota hybrid batteries are designed to last the life of the car. Degradation is minimal. Toyota warranties the battery for 10 years/100,000 miles on the Mk4. Real-world data shows batteries lasting 200,000+ miles.
When to check: 150,000+ milesCVT judder when cold
Low RiskSome owners report slight CVT judder during first few minutes of driving in cold weather. Resolves once transmission warms up. Not considered a fault by Toyota.
When to check: Test drive in cold weatherSuspension knocking (Mk3)
Low RiskAnti-roll bar links and front strut top mounts can develop a knocking noise at higher mileages. Budget £100–£200 for replacement — among the cheapest repairs in the class.
When to check: 60,000+ milesMOT Insights
Common MOT Failures
- Headlamp aim
- Brake disc wear
- Tyre condition
- Number plate light
Common Advisories
- Brake disc corroded
- Slight exhaust blow
- Anti-roll bar linkage
- Wiper blade condition
The Yaris has one of the highest MOT pass rates of any car on sale. Failures are almost entirely limited to basic wear items. The hybrid system has no clutch or traditional gearbox to wear, further reducing failure points.
Running Costs
| Insurance Group | 5–18 |
| Annual Road Tax | £0–£165 |
| Fuel Economy | 50–70 mpg (hybrid) |
| Service Interval | 12 months / 10,000 miles |
| Typical Service | £150–£250 |
| Major Service | £250–£400 |
| Timing | Chain (all models — no replacement needed) |
| Tyres | £50–£80 each |
Used Price Guide
Frequently Asked Questions
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