00-03 Cadillac Deville Immobilizer and Control Instructions

2003 Cadillac Devill Smart Entry Guide
Program only when system malfunction, key added or replaced

There is no onboard programming procedure for Cadillac Deville 2000-2003. These vehicles requires special equipment be connected to the vehicle to program the keyless remote. Please contact your dealer or automotive locksmith.

Immobilizer How – Without Original Key

  • Switch ignition ON with master key to be programmed
  • System LED will illuminate
  • After approximately 10 minutes system LED will switch OFF
  • Switch ignition OFF
  • Wait 5 seconds
  • Switch ignition ON
  • System LED will illuminate
  • After approximately 10 minutes system LED will switch OFF
  • Switch ignition OFF
  • Wait 5 seconds
  • Switch ignition ON
  • System LED will illuminate
  • After Approximately 10 minutes system LED will switch OFF
  • Switch ignition OFF
  • Wait 5 seconds
  • Start engine
  • New master key now programmed
  • Erase stored trouble codes
  • Replacement parts caan also be programmed using diagnostic equipment
  • NOTE: The vehicle learns the key transponder information on the ignition switch transition from OFF to CRANK. Ignition must be turned OFF before attempting to start the vehicle

Immobilizer How – With Original Master Key

  • Insert master key into ignition switch
  • Switch ignition ON
  • Switch ignition OFF
  • Remove master key
  • Within 10 seconds insert new key
  • Switch ignition ON
  • New key now programmed
  • NOTE: A maximum of 10 keys can be programmed using the master key

Immobilizer How – With Original PK3 master key

  • Verify key to be programmed has PK3 stampped on it
  • Insert original master key into ignition switch
  • Start engine
  • Switch ignition OFF
  • Remove master key
  • Within 10 seconds insert new key
  • Switch ignition ON
  • New key now programmed
  • NOTE: A maximum of 10 keys can be programmed using the master key