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.
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HOMESERVICE MANUALSLEXUS2006RX 400H AWD V6-3.3L (3MZ-FE) HYBRIDREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINCONTINUOUSLY VARIABLE TRANSMISSION/TRANSAXLESHIFT INTERLOCKDESCRIPTION AND OPERATIONSHIFT LOCK
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) Hybrid
Shift Lock
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) HybridSECTION Shift Lock
System Outline
1. Shift Lock Mechanism
If the brake pedal is depressed with the ignition SW set at ON (The stop light SW is on), the shift lock ECU is activated, allowing the driver to change the shift lever to a position other than the P position.
2. Key Interlock Mechanism
When the ignition SW is turned to the ACC or ON position and the shift lever is at a position other than the P position, the shift ECU is activated to flow the current into the key interlock solenoid. This inhibits to turn the ignition SW from the ACC position to the OFF position.
1. Shift Lock Mechanism
If the brake pedal is depressed with the ignition SW set at ON (The stop light SW is on), the shift lock ECU is activated, allowing the driver to change the shift lever to a position other than the P position.
2. Key Interlock Mechanism
When the ignition SW is turned to the ACC or ON position and the shift lever is at a position other than the P position, the shift ECU is activated to flow the current into the key interlock solenoid. This inhibits to turn the ignition SW from the ACC position to the OFF position.
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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.