12V auxiliary battery weak
usually 80,000–200,000 km · Wear part
Signs: Car won't go 'Ready' after standing
Fix: Replace 12V battery
€150–300
Common faults, service intervals and costs
Lexus UX
2018–now
1
engines covered
2
known faults
12,783
roadworthiness tests in the statistics
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Lexus UX has been built since 2018.
For this generation we cover 1 engines and 2 known faults, each with the mileage range where it usually appears.
The most expensive known risk is Hybrid battery ageing: it usually appears at 250,000–350,000 km and costs €1,500–3,500 to fix.
In UK roadworthiness tests in 2024, at 0–50 thousand km this model most often failed on: lights, wipers and visibility (2.3 %), tyres and wheels (2.2 %), brakes (0.1 %). It fails less often than average on: tyres and wheels, lights, wipers and visibility.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 2.0 / 2.5 Hybrid (M20A / A25A / 2AR) | Hybrid | Chain | 0W-16 / 0W-20 · API SN · ~4.5 L · every 15,000 km |
Faults by engine
2.0 / 2.5 Hybrid (M20A / A25A / 2AR)
Hybrid battery ageing
usually 250,000–350,000 km · Medium risk
Signs: Reduced EV assist
Fix: Recondition or replace
€1,500–3,500
Scheduled service
Intervals and typical prices for the 2.0 / 2.5 Hybrid (M20A / A25A / 2AR) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| Item | Interval | Typical price |
|---|---|---|
| Inverter coolantHybrid system | every 160,000 km or every 120 months | €80–160 |
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Hybrid battery cooling filter cleanHybrid system | every 30,000 km | €0–40 |
| Hybrid transaxle fluidTransmission | every 100,000 km | €80–160 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| Brake pads (regen-assisted)Brakes | usually at 80,000–160,000 km | €60–150 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Roadworthiness tests by mileage
Share of tests in the United Kingdom (DVSA MOT, 2024) that this model failed because of each system. Bold red means more often and green less often than an average car of the same age and mileage. Sample: 12,783 tests.
| thousand km | 0–50 | 50–100 | 100–150 |
|---|---|---|---|
| Brakes | 0.1 % | 0.6 % | 1.3 % |
| Suspension | 0.0 % | 0.1 % | 0.4 % |
| Steering | 0.0 % | 0.0 % | 0.0 % |
| Tyres and wheels | 2.2 % | 5.2 % | 3.7 % |
| Lights, wipers and visibility | 2.3 % | 3.6 % | 2.6 % |
| Body and corrosion | 0.0 % | 0.1 % | 0.2 % |
| Exhaust, emissions and leaks | 0.0 % | 0.1 % | 0.0 % |
Roadworthiness tests in the Netherlands by age
Share of this model's Dutch fleet that had a defect in each system at a roadworthiness test (APK) in 2025. Bold red means more often and green less often than an average car of the same age and fuel. Sample: 2,229 cars.
| age (years) | 3–5 | 6–8 |
|---|---|---|
| Brakes | 0.0 % | 0.0 % |
| Suspension | 0.0 % | 0.0 % |
| Steering | 0.0 % | 0.0 % |
| Tyres and wheels | 2.0 % | 2.9 % |
| Lights, wipers and visibility | 2.0 % | 4.8 % |
| Body and corrosion | 0.1 % | 0.3 % |
| Exhaust, emissions and leaks | 0.0 % | 0.0 % |
Most common engine versions in the EU
New cars of this generation registered in the EU, Iceland and Norway 2010–2025: 85,361, of which 39 in Croatia. The share shows how common each version is.
| Version | Share | Years | CO₂ | Fuel use |
|---|---|---|---|---|
| 2.0 / 2.5 Hybrid (M20A / A25A / 2AR)2.0 (1,987 cm³) · 112 kW (152 hp) · Hybrid | 81.9 % | 2019–2025 | 123 g/km | 5.4 L |
| 2.0 / 2.5 Hybrid (M20A / A25A / 2AR)2.0 (1,987 cm³) · 112 kW (152 hp) · Petrol | 6.0 % | 2019–2025 | 123 g/km | 5.0 L |
| Electric150 kW (204 hp) · Electric | 5.6 % | 2021–2025 | — | — |
| 2.0 / 2.5 Hybrid (M20A / A25A / 2AR)2.0 (1,987 cm³) · 127 kW (173 hp) · Petrol | 3.3 % | 2019–2024 | 153 g/km | 6.8 L |
| 2.0 / 2.5 Hybrid (M20A / A25A / 2AR)2.0 (1,987 cm³) · Hybrid | 2.6 % | 2019–2025 | 120 g/km | 5.8 L |
Source: European Environment Agency (EEA), monitoring of CO₂ emissions from new passenger cars, CC BY 4.0. CO₂ and fuel use are official type-approval values (WLTP from 2021), not real-world consumption.
Common questions
Does the Lexus UX have a timing chain or a timing belt?
2.0 / 2.5 Hybrid (M20A / A25A / 2AR): chain.
What are the known problems with the Lexus UX?
The faults with the highest risk: hybrid battery ageing (250,000–350,000 km, €1,500–3,500). The full list by engine is on this page.
What does the Lexus UX most often fail its roadworthiness test on?
In UK roadworthiness tests in 2024, at 0–50 thousand km this model most often failed on: lights, wipers and visibility (2.3 %), tyres and wheels (2.2 %), brakes (0.1 %). It fails less often than average on: tyres and wheels, lights, wipers and visibility.
What should you check when buying a used Lexus UX?
Before you buy, ask an authorised dealer to check by VIN whether the car has any open recalls. On the test drive, watch for these signs: reduced EV assist. The full checklist is in the guide to buying a used car.
Models with the same engines
These models share engines with this car, so they share some of its faults too.
Toyota Corolla (E210) 2019–Toyota C-HR 2016–Toyota RAV4 (XA50) 2018–Toyota RAV4 (XA40) 2012–2018Lexus RX 2003–Lexus NX 2014–Lexus IS (XE30) 2013–Toyota Camry (XV70) 2019–
Other Lexus models
Lexus ES (XZ10) 2018–Lexus RC 2014–Lexus RZ 2022–Lexus LBX 2023–Lexus GS (L10) 2012–2020Lexus CT 200h 2011–2022
Sources and notes
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 08/10/2026