Buzzing sound when rear defogger is on
Pontiac technical service bulletin 438135 for 1990-1994 Pontiac Sunbird.
- Bulletin number
- 438135
- Component
- Visibility: defroster/defogger/HVAC system: rear window
- Summary
- Buzzing sound when rear defogger is on. Tw
Owners of these vehicles have filed 5 complaints in the visibility category.
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