GMC TSB #PIT5955
2023 GMC Sierra 1500
Affected Component: BACK OVER PREVENTION
- Summary
- This Preliminary information communicates and issue when driving at highway speeds (above 60 mph) that there is a noise from the rear seat area that could be described as a buffering, pulsing, vibrating, roaring, booming type noise. Dealers are to fill the C pillar cavities with sound deadening material to correct the issue.