2003 Chrysler 300M BaseFACTORY OEM SERVICE PROCEDURE

Customer Learn Method

WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If no sentry keys have been previously programmed, scan tool method must be used to program first 2 keys into system. See SCAN TOOL METHOD  . Following steps must be completed in proper order. Sentry Key Immobilizer System (SKIS) will automatically exit CUSTOMER LEARN programming mode if time allotted is exceeded, or if 8 keys have already been programmed.
  1. Obtain 2 programmed sentry keys from owner. Ensure new sentry key blank is cut before proceeding. Insert one valid sentry key into ignition. Turn ignition on.
  2. After 3 seconds, but no more than 15 seconds, turn ignition off. Remove key. Insert second valid sentry key. Turn ignition on.
  3. About 10 seconds after completion of step  2 , Vehicle Theft Security System (VTSS) LED indicator will flash and a single tone will be heard. This indicates system has entered customer learn programming mode.
  4. Within 50 seconds, turn ignition off. Remove second valid sentry key. Insert blank sentry key. Turn ignition on. After about 10 seconds, a single tone will be heard. VTSS LED indicator will stop flashing and stay on for about 3 seconds to indicate sentry key has been successfully programmed.
  5. SKIS will return to normal operation immediately following exit from customer learn programming mode. Repeat procedure for each additional sentry key to be programmed.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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

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