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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 289 (SECURITY SYSTEM AND LOCKS SYSTEM)IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARINGNO. 1 ADDITIONAL KEY REGISTRATION PROCEDURE (USING TWO VALID KEYS)PROCEDURE
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

No. 1 Additional Key Registration Procedure (Using Two Valid Keys): Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Procedure
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Have one key (key 3) ready for registration.
    Fig 1: Identifying Keys For Registration
    G00974265Courtesy of MAZDA MOTORS CORP.
  2. Using key 1, turn the ignition switch to the ON position.
  3. Verify that the security light illuminates for approx. 3 s  and then goes out.
  4. Using key 1, turn the ignition switch to the LOCK position within approx. 4 s  after the security light goes out.
  5. Remove key 1
  6. Repeat Steps 2-5 using key 2.
  7. Repeat Steps 2-5 using key 3.
  8. If additional keys need to be registered, repeat Steps 1--7 in the same manner as key 3.
RENDER: 1.0x

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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.