Pop Noise Heard from Rear Speakers When Rear Seat Audio (RSA) is Turned On or Off (Replace Radio Speaker Amplifier)
| Subject: | Pop Noise Heard from Rear Speakers When Rear Seat Audio (RSA) is Turned On or Off (Replace Radio Speaker Amplifier) |
| Models: | 2004 Buick Rainier |
| 2004 Chevrolet TrailBlazer, TrailBlazer EXT |
| 2004 GMC Envoy, Envoy XL, Envoy XUV |
| 2004 Oldsmobile Bravada |
| with Speaker System Premium Performance Enhanced Audio (RPO UQA) |
| Built Between November, 2003 through March, 2004 |
This bulletin is being revised to provide the correction and warranty information which is now available. Please discard Corporate Bulletin Number 04-08-44-004 (Section 08 -- Body and Accessories).
Condition
Some customers may comment on a pop type noise coming from the rear speakers. This noise occurs when the Rear Seat Audio (RSA) is turned on or off.
Cause
The cause of this condition may be internal within the speaker amplifier.
Correction
Replace the radio speaker amplifier with P/N 15135032. Refer to the Amplifier Replacement procedure in the Entertainment sub-section of the Service Manual (SI Document ID #717629 for Bravada, Envoy, TrailBlazer or #812335 for Envoy XL, TrailBlazer EXT or #1392439 for Envoy XUV).
Parts Information
Part Number | Description |
|---|---|
15135032 | Amplifier, radio Speaker |
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
R0820 (Bravada, Envoy, Envoy XL, TrailBlazer, Trailblazer EXT) | Amplifier, Radio - Replace | Use published labor operation time |
R0820 (Envoy XUV) | Amplifier, Radio - Replace | 0.5 hr* |
* This time is updated from the current Labor Time Guide. The next update of the Labor Time Guide will contain this change.
