1990 Infiniti Q45

The 1990 model sits at the leading edge of the federal record, carrying 33 complaints, 1 recall, 1 investigation, and just 10 TSBs—substantially fewer technical bulletins than the 30 recorded in 1991 and 34 in 1992, and below the 47 complaints and 3 investigations seen in 1991. Across the early years of the record, the trend shows an initial spike to 47 complaints and 3 investigations in 1991 followed by volatility, including a dip to 2 complaints in 1993 and a rebound to 36 in 1994, before complaints settle to single digits by 1995–1996 and recalls disappear entirely after 1992. Relative to that arc, the 1990 model year logged the fewest TSBs of any year in the dataset and only one recall and one investigation, though its 33 complaints exceed every later year through 1996 except for the 47 filed in 1991 and the 36 filed in 1994. Federal filings for 1990 include zero fire complaints and one crash complaint, with the top complaint areas being Power Train (13), Engine & Engine Cooling (4), Visibility (4), and Steering (2), though the data does not specify root causes. Because 1990 combines a moderate complaint load with the lowest TSB count and minimal recall exposure of the early run, it presents a relatively favorable risk profile for a Q45 buyer, provided the single recall has been completed and power train symptoms are inspected.