Free API
B2960high severityBody

Security Code Incorrect

on 2005 GMC Canyon 3.5L I5 · 4WD

What this code means

The security system received an incorrect code, blocking vehicle start due to anti-theft protection. No direct OBD P-code equivalent.

Symptoms

  • Engine won't start
  • Security light flashing
  • Immobilizer active

Common causes

  • Unprogrammed or wrong key
  • Faulty immobilizer module
  • Damaged transponder
  • Body control module fault

Diagnostic steps

  1. Verify correct key programming
  2. Scan immobilizer for codes
  3. Check transponder signal
  4. Reprogram security system

Other Body codes on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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