21 Grand Cherokee L Limited Mirror Whistling Noise

[Pittjeep15]

Have noticed since I bought my 21 GCL Limited in August 21 that there is a whistling noise in both mirrors when driving 50+ mph, much more noticeable when the windows are down. Had it in the shop once and I had a 22 GCL loaner and noticed there was no noise. Has anyone else had this issue and fixed it or taken it to the dealer for a fix? Now that its getting nicer and I drive with my windows down would like to get it fixed. Pretty annoying

 

[jeepgrady]

I beleive there is a TSB for this.

 

[eleceng1979]

RECORD_ID: 3917989
Bulletin Number: S2123000052a
Replacement Service Bulletin Number: N/A
NHTSA Item Number: 10230179
Date Posted: 07-06-2021

Make: JEEP
Model: GRAND CHEROKEE
Year: 2021
Date Added: 01-17-2023
Summary: Wind Or Whistle Noise From Exterior Side Mirror At Highway Speeds. Noise can be heard with front windows down between 30 and 60 MPH from both LH and RH exterior rear view mirrors.

 

[MTMark]

Same. I read a thread where someone put weatherstripping in the gap where it retracts. I’ve thought of black duct tape (redneck fix).