2011 Chevrolet Cruze LTZFACTORY OEM SERVICE PROCEDURE

Immobilizer System Diagnostic Code Index

IMMOBILIZER SYSTEM DIAGNOSTIC CODE INDEX

DTC Description
DTC B2955 B2955 00: Security Sensor Data Circuit
DTC B3006 B3006 01: Hood Ajar Circuit Short to Battery
B3006 02: Hood Ajar Circuit Short to Ground
B3006 04: Hood Ajar Circuit Open
DTC B302A B302A 00: Mobile Telephone Communications Interface Requested Immobilization Malfunction
DTC B3031 B3031 00: Security Controller In Learn Mode Malfunction
DTC B3055 B3055 00: No Transponder Modulation or No Transponder
DTC B3060 B3060 00: Unprogrammed Transponder Identification Code Received Malfunction
DTC B389A B389A 00: Environment Identification
DTC B3902 B3902 00: Incorrect Immobilizer Identifier Received
DTC B3935 B3935 00: Transponder Authentication Error
DTC B3976 B3976 00: Unconfigured Transponder
DTC B3984 B3984 00: Device 1 Environment Identifier Not Programmable
DTC P0513 P0513: Immobilizer Key Incorrect
DTC P0633 P0633: Immobilizer Key Not Programmed
DTC P162B P162B: Remote Vehicle Speed Limiting Signal Message Counter Incorrect
DTC P1631 P1631: Immobilizer Fuel Enable Signal Not Correct
DTC P1649 P1649: Immobilizer Security Code Not 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.