1998 Buick Park Avenue

The 1998 Buick Park Avenue sits near the peak of this generation's complaint arc, with 277 federal complaints, 2 recalls, 4 investigations, and 75 TSBs — figures that make it the second-most-flagged model year in the run, trailing only 1997 (301 complaints) and well above the 1995 spike (128) and the 1999 step-down (144). The complaint burden is heavily concentrated in Engine & Engine Cooling (91), which alone accounts for roughly a third of the year's filings, followed by Seat Belts (29) and the Electrical and Fuel systems; the 42 fire complaints and 7 crash complaints elevate the safety dimension meaningfully beyond what the headline TSB count alone would suggest, even though the data does not specify a single dominant root cause. Across the full arc, complaints ramp from 56 in 1994 to a 1997–1998 double peak and then decline steadily to just 8 by 2005, while TSBs continue climbing through the later years — a pattern consistent with 1998 capturing the worst of the early-generation engineering issues before remediation cycles matured. In context, 1998 is clearly one of the riskier model years to target in this lineup, and a used buyer should prioritize a cooling-system inspection, seat-belt verification of recall completion, and confirmation that all four open investigations have been addressed. Net takeaway: 1998 is not the year to pick if you want the cleanest example of this generation — a 2000 or later car would carry materially lower complaint density for a relatively small price premium.