2003 Pontiac Sunfire AutomaticFACTORY OEM SERVICE PROCEDURE

System Operation Check

WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Chevrolet Cavalier, 2001 Pontiac Sunfire, and 2001 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch to OFF position. Ensure all doors are locked. Press transmitter UNLOCK button once. Interior lights should come on for about 20 seconds. Driver door should unlock. Theft deterrent system should disarm.
  2. Ensure all doors are locked. Press transmitter UNLOCK button twice within 5 seconds. Interior lights come on for 20 seconds, all doors should unlock and theft deterrent system should disarm. Press transmitter LOCK button. All doors should lock. Press transmitter LOCK button again within 5 seconds and theft deterrent system should arm. Press transmitter LUGGAGE COMPARTMENT button. Luggage compartment lid should release.
  3. Press transmitter UNLOCK button and turn ignition switch to RUN position within 20 seconds. Interior lights should go out when ignition switch is turned to RUN position. If RKE system does not operate as described, perform self-diagnostics. See SELF-DIAGNOSTIC SYSTEMΒ  .
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.