5AA-TAWH15W
Lexus LM500h TAWH15W specs
TAWH15W is the model code of the Lexus LM500h. Japan’s transport ministry lists it in its fuel economy lists from 2024–2026 under the model type 5AA-TAWH15W. A genuine car’s chassis number starts TAWH15-.
TAWH15W at a glance
- Make
- Lexus
- Model
- LM500h
- Model code
- TAWH15W
- Model types
- 5AA-TAWH15W
- In MLIT’s lists
- 2024–2026
- Engines
- T24A 2,393 cc hybrid
- Gearboxes
- 6-speed automatic
- Drive
- four-wheel drive
- Kerb weight
- 2,420–2,460 kg
- Official fuel economy
- 13.5–13.8 km/L (38–39 mpg)
Fuel economy is from Japan’s official tests and is usually better than you’ll see on UK roads. MLIT doesn’t list power or torque.
5AA-TAWH15W
Listed 2024–2026. The 5AA prefix (our explanation, not MLIT’s) means hybrid passenger car certified to Japan’s 2018 emissions rules, 50% below their limits. Check 5AA-TAWH15W against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| T24A2,393 cc hybrid | 6-speed automatic | four-wheel drive | 2,420–2,460 kg | 4–6 | 13.5–13.8 km/L38–39 mpg, WLTC test | 2024–2026 |
Each row is one version as MLIT lists it. A version can appear twice when MLIT gave figures on two tests that year. Low-emission stars and trim names aren’t shown. MLIT gives fuel economy in km/L; the mpg figures are our conversion to UK gallons. Japanese tests are gentler than real UK driving, so expect less.
TAWH15 build year by chassis number
Japan’s carmakers list the chassis numbers each code was built with every year from 2015. Find the serial below, or use the build year finder.
| Built | Chassis numbers |
|---|---|
| 2023 | TAWH15-001001 to 001200 |
| 2024 | TAWH15-001201 to 007618 |
| 2025 | TAWH15-007582 to 012401 |
From the JAMA chassis number lists: 車台番号一覧表. We keep only the chassis code, serial ranges and year. JAMA calls them reference information, not a certificate.
Check a TAWH15W before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start TAWH15-, and the engine and gearbox should match one of the versions above. Our free check reads the UK MOT history and compares it with the chassis code.
Questions
What engine does the TAWH15W have?
MLIT lists the Lexus LM500h TAWH15W with T24A 2,393 cc hybrid.
What fuel economy does the TAWH15W get?
Officially between 13.5 and 13.8 km/L (about 38–39 mpg), depending on the version, on Japan’s own tests. Real-world figures are usually lower, especially against the older 10-15 mode test.
How heavy is the TAWH15W?
Between 2,420 and 2,460 kg kerb weight, depending on the version.
Is 5AA-TAWH15W the same as TAWH15W?
Yes. 5AA-TAWH15W is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and TAWH15W is the model code. The chassis number starts with TAWH15-.
About these figures
The model types, engine codes, capacities, gearboxes, drive, weights, seats and km/L figures are copied from MLIT’s yearly lists of cars on sale in Japan each March, so “listed” years are list years, not exact production dates. The English model names, mpg conversions, emissions code explanations and chassis number matching are ours. Lists before 2013 were printed as PDFs that we read by machine; where an older list gives an engine code that doesn’t match its capacity, we’ve used the figure the same model type has in other years. Check anything that matters against the car’s own papers. Spotted a mistake? Email [email protected]. All Lexus model codes.
Source: Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan, fuel economy lists 2004–2026, used under the Public Data License 1.0. Edited and translated by JDM History.