GM Service Manual Online
For 1990-2009 cars only

Problem

Action

Poor Horn Tone

    • Tighten the bolts in the mounting area.
    • Correct the poor connections or ground.

Low-Pitched Moan (Sounds Like Mooing)

A low-pitched moan indicates a high current.

Adjust the current. Refer to Horn Current Adjustment .

Weak Tone

  1. A weak tone indicates a low current.
  2. Correct the poor connections or ground.

  3. If the condition persists, adjust the current. Refer to Horn Current Adjustment .

Weak, Strained Tone

  • Remove the foreign object from the horn.