2000 Saturn LS2 AutomaticFACTORY OEM SERVICE PROCEDURE

Door UNLOCK Button

WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

When transmitter UNLOCK button is pressed once, transmitter sends an identification code to remote control door lock receiver to unlock driver door. The receiver sends a signal to Door Control Module (DCM) on the serial data line to unlock the driver door. The DCM then unlocks driver door. The Body Control Module (BCM) disarms Universal Theft Deterrent (UTD) system. BCM will also turn on courtesy lights if ambient light is low. If UNLOCK button is pressed again within 10 seconds of driver door unlocking, passenger door will unlock.

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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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