⚠️ Lexus manufacturer position
NX fuel module service is documented in Lexus Techinfo with cargo-area or under-seat access depending on generation.
Vehicle information
| Make | Lexus |
|---|---|
| Model | NX |
| Market status | Sold new in the US 2015–present |
| Body styles | Compact SUV |
| Generations | AZ10 (2015–2021), AZ20 (2022–present) |
| Engine options | Gasoline: 2.5L four-cylinder turbo on select trims Hybrid: NX 350h / 450h+ hybrid gasoline |
| Fuel tank capacity | 14.8 gal (typical US spec) |
| Fuel system | TNGA-K gasoline direct injection; hybrid shares gasoline tank |
| Access method | Cargo area or rear seat access panel (varies by generation) |
| Anti-siphon | Yes |
| Service portal | Lexus Techinfo / Toyota TIS (Techinfo.Toyota.com) |
Misfuel risk Moderate
NX is gasoline or hybrid in the US. Contaminated E10/E15 or accidental diesel is remediated by tank drain via access panel.
If the engine was not started
Leave ignition off; drain before hybrid system primes gasoline circuit.
If the engine was started
Service filters, inspect injectors, and verify hybrid fuel system integrity per OEM.
Access procedure
- Relieve fuel pressure using Lexus/Toyota prescribed steps; disconnect battery negative.
- Remove rear seat cushion or trunk access panel to reach the fuel pump module cover.
- Disconnect wiring and fuel line quick-connects; plug openings to control vapors (OSHA 1910.106 precautions).
- Remove lock ring and extract pump/sender assembly per Lexus service manual.
- Drain contaminated fuel; inspect tank for debris or water intrusion.
- Install new seal, reassemble, and perform leak check before engine start.
- Clear fuel trim adaptations if required after extensive contamination repair.
Notes
- NX shares TNGA-K components with Toyota RAV4.
Related models
- Toyota RAV4
- Lexus UX
Frequently asked questions
Can I tow an NX after misfueling?
Do not drive or tow under power if wrong fuel may reach the engine. Flatbed transport to a certified facility is preferred.
Does the NX hybrid still need a gasoline drain?
Yes. Hybrid models store gasoline in the same tank; drain via OEM module access if wrong fuel was added.
Need professional misfuel recovery?
Find a certified operator or read consumer guidance for your next steps.
Find an operator Consumer guidance