EI07199 - Radio Speaker Buzz Noise
| Subject: | EI07199 -- Radio Speaker Buzz Noise |
| Models: | 2007 Chevrolet Silverado |
| 2007 GMC Sierra |
| Attention: | Proceed with this bulletin ONLY if the customer has commented about this concern AND the EI number is listed in GMVIS, otherwise disregard the bulletin and proceed with diagnostics found in the published Service Information. THIS IS NOT A RECALL. Refer to Service Bulletin 04-00-89-053A for more detail on the use of engineering information bulletins. |
Condition
Important: If the customer did not bring their vehicle in for this condition, do not proceed with this bulletin.
Some customers may comment on a door trim buzz noise during radio speaker operation.
Correction
GM Engineering is attempting to determine the root cause of the above condition. GM Engineering has a need to obtain information first hand during diagnosis and BEFORE repair. As a result, this information will be used by engineering to "root cause" the customer's concern and develop/validate a field fix. Please follow the instructions below regarding the requested information.
If the customer's concern can be duplicated, document the following information in the repair order:
- From which area of the door does the buzz originate?
- When the buzz is detected, document the following radio settings:
- Based on the location of the buzz, remove the door trim and search for potential causes. Inspect the speaker connection for a secure fit. Inspect the area behind the door trim panel and insulation cover for loose fittings or components. If the cause is isolated, perform necessary corrective actions to alleviate the buzz.
- For dealers located in SE Michigan ONLY between 7:00 a.m.- 4:00 p.m. - contact the engineer (Matt Berg) prior to making any repairs. For all other cases, if the speaker is found to be defective proceed with the repair. Submit a Field Product Report (refer to bulletin 02-00-89-002F) containing all information requested in this bulletin as well as the diagnosis and repair.
| • | volume |
| • | bass |
| • | midrange |
| • | treble |
Engineer Contact Information
For dealers located in the Detroit, MI area ONLY, contact the engineer listed below prior to making any repairs.
Engineer | Phone Number | Location |
|---|---|---|
Matthew Berg | 248-891-9302 | Detroit, MI Area |
Warranty Information
For vehicles repaired under engineering direction, use:
Labor Operation | Description | Labor Time |
|---|---|---|
C9803* | Engineering Information - Radio Speaker Buzz | 0.7 hr |
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide. | ||
