The power door lock actuator controls the locks on your vehicle. When you press the lock or unlock button, the door lock actuator is activated and moves the door lock mechanism. If the driver side door on your vehicle will not lock or unlock or if you hear a buzzing sound when pressing lock/unlock a bad actuator is likely the problem. Fits the following vehicles: 2002-2006 Escalade 2003-2006 Escalade ESV 2002 Escalade EXT 2000-2006 Suburban 1500 2000-2006 Suburban 2500 2000-2006 Tahoe 2000-2006 Yukon 2000-2006 Yukon XL 1500 2000-2006 Yukon XL 2500 Replaces part numbers: 15250765, 15808595, 746-015, 25001736, 746015 This is a compatible replacement part manufactured by AA Ignition. This door lock actuator is NOT a genuine OEM part. Vehicle makes and their associated vehicle models are registered trademarks of their respective owners. These trademarks and part numbers are used in this listing only to identify the vehicles this door lock actuator fits. AA Ignition is a registered trade mark of GWA Auto Parts Inc.