Started getting a dash message to roll the driver window down and up. Did that several times, but message kept coming back. Eventually, the message disappeared and the driver window stopped working entirely.
I replaced the regulator/motor (aftermarket) and then the master switch (first aftermarket, now OEM GM #23427094).
Other windows work fine. With the OEM switch, the dash calibration message returned (once only), but the driver window never works.
I tried applying 12V directly to both old and new motors — no movement. Fuse is good. No visible wire damage.
I am perplexed as to what the issue is.
I replaced the regulator/motor (aftermarket) and then the master switch (first aftermarket, now OEM GM #23427094).
Other windows work fine. With the OEM switch, the dash calibration message returned (once only), but the driver window never works.
I tried applying 12V directly to both old and new motors — no movement. Fuse is good. No visible wire damage.
I am perplexed as to what the issue is.
Jul 30, 2025 at 11:02 AM



