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 MANUALSLEXUS2010RX 450H 3.5 BREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSSMART ACCESS SYSTEM (KEYLESS ENTRY) (DIAGNOSTIC CODES & SYMPTOM TESTS)
2010 Lexus RX 450h 3.5 B
Smart Access System (Keyless Entry) (Diagnostic Codes & Symptom Tests)
2010 Lexus RX 450h 3.5 BSECTION Smart Access System (Keyless Entry) (Diagnostic Codes & Symptom Tests)
- SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function)
- DTC B27A1: Open in Driver Side Electrical Antenna Circuit (To 8/2009)
- DTC B27A1: Open in Driver Side Electrical Antenna Circuit (From 8/2009)
- DTC B27A2: Open in Front Passenger Side Electrical Antenna Circuit (To 8/2009)
- DTC B27A2: Open in Front Passenger Side Electrical Antenna Circuit (From 8/2009)
- DTC B27A5: Open in Front Floor Electrical Key Oscillator Circuit (To 8/2009)
- DTC B27A5: Open in Front Floor Electrical Key Oscillator Circuit (From 8/2009)
- DTC B27A6: Open in Rear Floor Electrical Key Oscillator Circuit (To 8/2009)
- DTC B27A6: Open in Rear Floor Electrical Key Oscillator Circuit (From 8/2009)
- DTC B27A7: Open in Inside Luggage Compartment Electrical Key Oscillator Circuit (To 8/2009)
- DTC B27A7: Open in Inside Luggage Compartment Electrical Key Oscillator Circuit (From 8/2009)
- DTC B27A8: Open in Outside Luggage Compartment Electrical Key Antenna Circuit (To 8/2009)
- DTC B27A8: Open in Outside Luggage Compartment Electrical Key Antenna Circuit (From 8/2009)
- Entry Answer-back Buzzer does not Sound (To 8/2009)
- Entry Answer-back Buzzer does not Sound (From 8/2009)
- All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate (To 8/2009)
- All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate (From 8/2009)
- All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate (To 8/2009)
- All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate (From 8/2009)
- Driver Side Door Entry Unlock Function does not Operate (To 8/2009)
- Driver Side Door Entry Unlock Function does not Operate (From 8/2009)
- Front Passenger Side Door Entry Unlock Function does not Operate (To 8/2009)
- Front Passenger Side Door Entry Unlock Function does not Operate (From 8/2009)
- Driver Side Door Entry Lock and Unlock Functions do not Operate (To 8/2009)
- Driver Side Door Entry Lock and Unlock Functions do not Operate (From 8/2009)
- Front Passenger Side Door Entry Lock and Unlock Functions do not Operate (To 8/2009)
- Front Passenger Side Door Entry Lock and Unlock Functions do not Operate (From 8/2009)
- Driver Side Door Entry Lock Function does not Operate (To 8/2009)
- Driver Side Door Entry Lock Function does not Operate (From 8/2009)
- Front Passenger Side Door Entry Lock Function does not Operate (To 8/2009)
- Front Passenger Side Door Entry Lock Function does not Operate (From 8/2009)
- Room Oscillator does not Recognize Key (To 8/2009)
- Room Oscillator does not Recognize Key (From 8/2009)
- Entry Interior Alarm does not Sound (To 8/2009)
- Entry Interior Alarm does not Sound (From 8/2009)
- Back Door Entry Unlock Function does not Operate (To 8/2009)
- Back Door Entry Unlock Function does not Operate (From 8/2009)
- Back Door Entry Lock and Unlock Functions do not Operate (To 8/2009)
- Back Door Entry Lock and Unlock Functions do not Operate (From 8/2009)
- Back Door Entry Lock Function does not Operate (To 8/2009)
- Back Door Entry Lock Function does not Operate (From 8/2009)
RENDER: 1.0x
NO RELATED
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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.