GM Service Manual Online
For 1990-2009 cars only

Condition

Action

Poor Horn Tone

    • Tighten the bolts/screws in the mounting area.
    • Correct the poor connections.

Low-Pitched Moaning Horn Sound

Adjust the horn current. Refer to Horn Current Adjustment .

Weak Horn Tone

Inspect for poor connections.

If the connections are good, adjust the horn current. Refer to Horn Current Adjustment .

Weak, Strained Horn Tone

Inspect for the following conditions:

    • A foreign object in the horn
    • A damaged horn bezel

Harsh Vibration During Horn Operation

Inspect for horn contact with body components.