One problem related to front seat belt buckle assembly has been reported for the 1999 Buick Park Avenue. The most recently reported issues are listed below.
The passenger side seat belt failed to retract, and seat belt interlock will not lock. Ninety percent of the time the front passenger seat belt will not unlatch. You have to pull and pull inch by inch until it releases. It is very slow in retracting and sometimes won't retract at all.
| Front Seat Belt Retractor problems | |
| Seat Belt problems | |
| Front Seat Belt Webbing problems | |
| Front Seat Belt Anchorage problems | |
| Front Seat Belt Buckle Assembly problems |