There was one technical service bulletin issued for the 1991 Pontiac Bonneville.
| Bulletin Date: | Jun. 1, 1997 |
| Component: | Rearview mirrors/devices interior. |
| Bulletin Summary: | Excessive vibration of electrochromic inside rearview mirror. |
| Vehicles covered in this TSB: |
1991 Buick Lesabre,
1992 Buick Lesabre,
1993 Buick Lesabre,
1994 Buick Lesabre,
1995 Buick Lesabre,
1996 Buick Lesabre,
1997 Buick Lesabre,
1991 Buick Park Avenue,
1992 Buick Park Avenue,
1993 Buick Park Avenue,
1994 Buick Park Avenue,
1995 Buick Park Avenue,
1996 Buick Park Avenue,
1997 Buick Park Avenue,
1995 Buick Riviera,
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