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.
2012 Lexus RX 350 AWDFACTORY OEM SERVICE PROCEDURE
Customize Parameters
- CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE)
HINT:
The following items can be customized.
NOTE:- When the customer requests a change in a function, first make sure that the function(s) can be customized.
- Be sure to make notes of the current settings before customizing.
- When troubleshooting a function, first make sure that the function is set to the default setting.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Power Window / Customize Setting.
- Select the setting by referring to the table below.POWER WINDOW
Tester Display Default Content Setting Door Key P/W Up ON This function is used to close the windows by operating the mechanical key. ON/OFF Door Key P/W Down ON This function is used to open the windows by operating the mechanical key. ON/OFF P/W Down W/ Transmitter OFF This function is used to open the windows using the wireless key transmitter. ON/OFF P Window Auto Up Avail This function is used to enable or disable the auto up function for the front passenger door window using the power window regulator switch assembly (for front passenger side). Avail/Not Avl P Window Auto Up From Driver Avail This function is used to enable or disable the remote auto up function for the front passenger door window using the multiplex network master switch assembly. Avail/Not Avl RR Window Auto Up Avail This function is used to enable or disable the auto up function using the power window regulator switch assembly (for rear RH side). Avail/Not Avl RR Window Auto Up From Driver Avail This function is used to enable or disable the remote auto up function for the rear RH door window using the multiplex network master switch assembly. Avail/Not Avl RL Window Auto Up Avail This function is used to enable or disable the auto up function using the power window regulator switch assembly (for rear LH side). Avail/Not Avl RL Window Auto Up From Driver Avail This function is used to enable or disable the remote auto up function for the rear LH door window using the multiplex network master switch assembly. Avail/Not Avl
Factory Service Tools
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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.