LEXUS GS450H (2012)
Running costs, reliability data, and common problems from 41 real MOT tests.
Annual Cost
£2,607
£217/month
MOT Pass Rate
93%
Excellent
Road Tax
£760
Based on CC/year
Insurance
Grp 35-50
3456cc Petrol
Great Choice
93% pass rate, £2607/year to run. 11 points above average.
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Annual Running Costs
~30 mpg
Based on 3456cc
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the LEXUS brand average of 87%.
At 14 years old, 93% of LEXUS GS450Hs from 2012 passed their MOT first time in 2026. That's based on 41 tests across the UK. The average mileage at this age is 111,016 miles.
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How Does It Compare?
Mileage Analysis
111,016
Average miles
103,600
Expected for age
The average 2012 LEXUS GS450H has 111,016 miles on the clock, which is in line with the expected 103,600 miles for a 14-year-old car, suggesting normal everyday use.
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Best Year to Buy?
The most reliable year is the 2008 model with a 85% MOT pass rate, while the 2006 model has the lowest at 79%. The 2012 sits between the two at 93%.
LEXUS GS450H by Year
Similar Cars to Consider
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About the 2012 LEXUS GS450H
The 2012 LEXUS GS450H is a premium performance with a 3456cc petrol engine. 41 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 11% of all 2012 cars for reliability.
With an average of 111,016 miles at 14 years old, LEXUS GS450H owners drive about as much as the UK average.
2012 LEXUS GS450H Fuel Costs
The 3456cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2012 LEXUS GS450H?
Total estimated annual running cost is £2,607 (£217/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
LEXUS GS450H Reliability Trend
The LEXUS GS450H has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Buying a Used 2012 LEXUS GS450H
At 14 years old, the LEXUS GS450H is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2008 model has the highest pass rate at 85%. Note: with only 41 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2012 LEXUS GS450H's fuel type, age, and engine size, these are the most likely problem areas to check.
Rust and Corrosion
Watch outAt 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.
Suspension Bushings
Watch outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Clutch Wear
Watch outWith an average of 111k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.
Brake Discs and Pads
Medium riskHigh-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2012 LEXUS GS450H stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| LEXUS GS450H(2012) | 93% | £1592 | £760 | Grp 35-50 | £2607 |
| LEXUS RX450H(2010) | 86% | £1592 | £250 | Grp 35-50 | £2247-£360 |
| LEXUS RX 450H LUXURY CVT(2013) | 90% | £1592 | £250 | Grp 35-50 | £2097-£510 |
| TOYOTA ALPHARD(2010) | 90% | £1592 | £250 | Grp 35-50 | £2097-£510 |
| LEXUS RX 450H F SPORT CVT(2013) | 89% | £1592 | £250 | Grp 35-50 | £2247-£360 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Lexus Models
Explore other Lexus cars or similar models in the same category.
LEXUS NX
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LEXUS UX
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LEXUS CT
2012 · 1798cc Electric
LEXUS RX450H
2010 · 3450cc Petrol
LEXUS RX 450H LUXURY CVT
2013 · 3456cc Petrol
TOYOTA ALPHARD
2010 · 3459cc Petrol
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