Take control of the driver's-side glass with the Standard Ignition Door Window Switch DWS2084, a front-left power window switch that drops in as a direct-fit replacement for the 2016-2022 Lexus RX350, 2018-2022 Lexus RX350L, 2016-2022 Lexus RX450h, and 2018-2022 Lexus RX450hL — see the Buyer's Guide tab for engine-specific details. It sends the driver's control signals to the front-left window circuit, and if a failed switch is the cause of an unresponsive or intermittent window, replacing it with this unit restores that control.
Signs this switch may need replacing include a window that won't respond to the button, works only intermittently, or operates in one direction only. Diagnose the cause before replacing, as motors, wiring, and regulators can produce similar symptoms.
Interchange: WST2184 · PA4954 · 840400E090 · 8404048200
This part cross-references / interchanges with the following part numbers:
What position is this window switch for?
It is the front-left (driver's-side) door window switch, cataloged in the FRONT LEFT position for the listed Lexus RX applications.
Which vehicles does the DWS2084 fit?
It fits the 2016-2022 Lexus RX350, 2018-2022 Lexus RX350L, 2016-2022 Lexus RX450h, and 2018-2022 Lexus RX450hL. Check the Buyer's Guide tab to confirm your vehicle.
What numbers does this switch interchange with?
It replaces WST2184, PA4954, 840400E090, and 8404048200. Matching any of these confirms you have the correct part.
What are the signs this switch may be failing?
Common signs include a window button that won't respond, works only intermittently, or moves the glass in one direction. Diagnose first, since wiring, motors, or regulators can cause similar issues.
Is this an OE-replacement switch?
Yes. It is precisely engineered as an OE replacement for a seamless fit, optimal performance, and simplified installation on the listed Lexus vehicles.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
