Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Lexus NX 300h BaseFACTORY OEM SERVICE PROCEDURE
On-Vehicle Inspection [10/2014 - ]: Procedure
- INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY
- Put the engine in inspection mode (maintenance mode).
- Start the engine and check that the MIL is not illuminated. After the engine is warmed up, check that the idle speed is within the specified range when the A/C is switched off.
Standard
Condition Engine Idle Speed A/C switched off 950 to 1050 rpm NOTE:- Be sure to perform this step with all accessories off.
- Make sure that the shift lever is in P.
- Perform a road test and confirm that there are no abnormalities.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.