BUZZING SOUND WHEN REAR DEFOGGER IS 'ON'. Pontiac Sunbird 1990

For 1990-2009 cars

# BUZZING SOUND WHEN REAR DEFOGGER IS 'ON'

#### SUBJECT: BUZZING SOUND WHEN REAR DEFOGGER IS "ON" (REPLACE TIMER RELAY, BREAKER AND TERMINAL(S) USING KIT)

#### MODELS: 1989-94 PONTIAC SUNBIRD

#### CONDITION:

SOME OWNERS MAY COMMENT ON A BUZZING SOUND WHEN THE REAR DEFOGGER IS "ON".

#### CAUSE:

THE CIRCUIT BREAKER MAY CAUSE THE REAR DEFOGGER TIMER RELAY TO CYCLE "ON" AND "OFF" (I.E. BUZZ). THIS MAY CAUSE A THERMAL CONDITION WHICH WILL ANNEAL THE CIRCUIT BREAKER FUSE BLOCK TERMINALS.

#### CORRECTION:

USE KIT, P/N 22638225, TO CORRECT THE CONDITION.

#### PARTS AVAILABILITY:

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

#### WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER: R2162 LABOR TIME: .4 HR. (NO REAR DEFOG TIMER RELAY TERMINALS NEEDED) LABOR TIME: .5 HR. (ONE REAR DEFOG TIME RELAY TERMINAL NEEDED) LABOR TIME: .6 HR. (ALL REAR DEFOG TIMER RELAY TERMINALS NEEDED)

FIGURES: 0

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