8th Generation (1987—1991) Bonneville Problems

This generations ranks 4th out of 29 Pontiac generations in reliability and is one of the safer bets out there. Owners have the most complaints about the engine (55%), fuel system (22%), and the hvac (11%). We've listed some of the most recent complaints below, see them all on CarComplaints.com.

  1. Engine a Knocking Noise 2 complaints at an average of 55,729 miles in the 1989 Pontiac Bonneville.
  2. Turns Over but Won\'t Start 2 complaints at an average of 168,000 miles in the 1988 Pontiac Bonneville.
  3. Engine Won\'t Turn Over 1 complaints at an average of 120,000 miles in the 1989 Pontiac Bonneville.

What Bonneville Year is Most Reliable?

Generations are a good baseline for prediciting reliability, but there will almost always be year-to-year differences. We've calculated a reliability score for each model year within this generation, but we've based that score on how the model year compares to all Pontiac model years.

Watch out for the 1989 model year which has the highest PainRank™ score in this generation.

Year Complaints Recalls TSBs PainRank (?)
1991 2 2 1 0.34
1990 0 1 0 0.0
1989 4 2 0 1.36
1988 2 1 0 0.68
1987 1 4 0 0.22

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