Get your driver or passenger seat moving again with the Standard Ignition Power Seat Switch PSW21, a direct-fit OE-replacement switch that restores power seat function on a wide range of GM trucks and SUVs. It drops in as a replacement for applications including the 1999 Cadillac Escalade, 1999-2007 Chevrolet Silverado 1500, 2000-2007 Chevrolet Tahoe, 2000-2005 Chevrolet Impala and Monte Carlo, 1999-2007 GMC Sierra 1500 and Yukon, and many more — see the Buyer's Guide tab for the full list of 29 applications.
If a failed power seat switch is the cause of a seat that won't adjust, this replaces it. Signs the original switch may need replacing include a seat that won't move in one or more directions, intermittent operation, or a switch that feels stuck or unresponsive.
Interchange: STW21 · SW4168 · PA1317 · 12450256
This part cross-references / interchanges with the following part numbers:
What does the Standard Ignition PSW21 do?
It is a power seat switch that controls the electrical signals to the seat's adjustment motors, letting you move the seat forward, back, up, or down.
Is PSW21 a direct-fit replacement?
Yes. It is a direct-fit OE-replacement switch built to OE spec for proper fit, form, and function on the listed applications.
Which vehicles does this switch fit?
It fits a range of GM trucks and SUVs such as the Chevrolet Silverado, Tahoe, Suburban, Impala, GMC Sierra, Yukon and more. See the Buyer's Guide tab for all 29 applications.
What numbers does the PSW21 interchange with?
It cross-references STW21, SW4168, PA1317, and 12450256.
How do I know my power seat switch is failing?
Common signs include a seat that won't move in one or more directions, intermittent movement, or an unresponsive switch. Diagnose the cause before replacing, as wiring or motors can also be at fault.
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.
