2021-2024 Jeep Wrangler/Gladiator BSR from Sound Bar

Owners of 2021-2024 Jeep Wrangler and Gladiator vehicles may experience an annoying buzz, squeak, or rattle (BSR) originating from the sound bar or sport bar area. This issue, often noticeable when driving on rough roads or with high bass music, is addressed by Jeep's STAR Online Publication S2323000074 Rev. A. This communication provides technicians with a clear procedure to identify and eliminate the BSR noise.

Symptoms of BSR Noise

The primary symptom is a persistent buzz, squeak, or rattle (BSR) noise emanating from the vehicle's sound bar or sport bar area. This noise is typically more pronounced under specific conditions, such as driving over uneven surfaces or when the audio system is playing music with significant bass. Owners might find the Jeep Wrangler BSR noise particularly bothersome during daily commutes or off-road adventures.

Diagnosing the Buzz, Squeak, or Rattle (BSR)

To accurately diagnose the source of the Jeep Wrangler BSR noise, technicians are advised to replicate the conditions that trigger the sound. This involves having a helper drive the vehicle while the technician applies upward pressure to the sport bar trim, specifically item 4 as depicted in Figure 1 of the bulletin. If applying hand pressure to this area lessens or resolves the noise, it confirms that the sport bar trim is the source of the vibration, indicating the need for foam application.

Repair Procedure Summary

The repair outlined in STAR Online Publication S2323000074 Rev. A involves the precise application of Mopar foam to the underside of the sport bar trim. The procedure begins with removing the sport bar trim using a T25 torx bit. Once removed, the areas where the foam will be applied must be thoroughly cleaned with isopropyl alcohol to ensure proper adhesion. This step is crucial for removing any grease, oils, or dirt that could compromise the foam's effectiveness. Technicians then apply Mopar foam, either part number 68053426AA or 68643986AA, to the underside of both the right and left-hand sport bar trims. Figure 2 in the bulletin illustrates the correct placement of the foam, emphasizing that it should be placed on the part but not extend over the edge. Finally, the sport bar trim is reinstalled.

Required Tools and Parts

To perform this repair, technicians will need a T25 torx bit for trim removal. For cleaning, isopropyl alcohol is required to prepare the surfaces. The essential parts for resolving the Jeep Wrangler BSR noise are specific Mopar foam pieces:

• Mopar foam part number 68053426AA
• Mopar foam part number 68643986AA These foam pieces are designed to dampen vibrations and eliminate the BSR noise.

What Owners Should Do

If you own a 2021-2024 Jeep Wrangler or Gladiator and are experiencing a buzz, squeak, or rattle (BSR) from your sound bar or sport bar area, it is recommended to contact your authorized Jeep dealership. Inform them about the noise and mention STAR Online Publication S2323000074 Rev. A. While this communication outlines a known fix, it's important to note that it does not automatically authorize warranty repairs. Your dealership will be able to diagnose the issue and advise on the appropriate course of action.

Source: NHTSA ID: 11011504