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2010 CADILLAC CTS
3.0L V6•AWD•AUTOMATIC•gas
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor991Torque6448Fluid18DTC2446Battery2Maintenance0Recalls3
C0351low severityChassis

Headlight Leveling Motor Circuit

on 2010 Cadillac CTS 3.0L V6 · AWD

What this code means

Malfunction in a headlight leveling actuator motor.

Symptoms

  • One headlight aimed incorrectly
  • Headlight leveling warning
  • Beam pattern asymmetric

Common causes

  • Leveling motor failure
  • Motor connector corroded
  • Wiring harness damage
  • Motor gear stripped internally

Diagnostic steps

  1. Test motor by applying direct voltage
  2. Check connector for corrosion
  3. Inspect wiring harness
  4. Command motor with scan tool
  5. Listen for motor operation

Repair notes

Replace headlight leveling motor. Re-aim headlights after replacement.

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