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2010 CHEVROLET IMPALA
3.5L V6•FWD•AUTOMATIC•gas
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor492Torque4272Fluid7DTC1223Battery1Maintenance0Recalls4
B0122low severityBody

Theft Deterrent Indicator Lamp Circuit

on 2010 Chevrolet Impala 3.5L V6 · FWD

What this code means

Malfunction in the theft deterrent system indicator lamp circuit. The security light in the dash does not operate correctly.

Symptoms

  • Security light always on
  • Security light never illuminates
  • Light does not flash when system is armed
  • Cannot determine system status

Common causes

  • Burnt out indicator LED
  • Instrument cluster fault
  • BCM indicator output failure
  • Wiring issue

Diagnostic steps

  1. Check indicator lamp operation
  2. Test BCM indicator output
  3. Inspect cluster wiring
  4. Check instrument cluster

Repair notes

Replace indicator lamp/LED in cluster or repair wiring.

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