AI Damage1986 Pontiac Bonneville: common problems
Owners of the 1986 Pontiac Bonneville filed 3 complaints with NHTSA, most often about exterior lighting and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- 1 Exterior lighting 33% of all complaints
- 2 Powertrain 33% of all complaints
- 3 Structure 33% of all complaints
- Exterior lighting: 1 complaints (33% of all).
- Powertrain: 1 complaints (33% of all).
- Structure: 1 complaints (33% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 3.8 L · petrol · 6 cyl
- 4.3 L · petrol · 6 cyl
- 5 L · petrol · 8 cyl
- automatic, 3-speed
- automatic, 4-speed
Drive: RWD
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Exterior lighting | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Structure | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Vehicle experienced gear failure, the vehicle would only move in reverse.
Vehicle experienced symptom of recall in which the push-pull headlight switch may have electrical contacts allowing an intermittent headlight short circuit causing panel to flicker or go off completely. Vehicle not included in recall.
Cloth headliner began to separate from the foam liner above head, hangs down, blocking drivers view.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 17,152 of 36,659 model years in the NHTSA data (top 47% most complained about).
On average one model year of the Bonneville has 71 complaints (28 years in the data). This year has 3, below average.
What to check before buying
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Other years of this model
- Bonneville 19783 sources
- Bonneville 198719 sources
- Bonneville 198817 sources
- Bonneville 198928 sources
- Bonneville 199039 sources
- Bonneville 199122 sources
- Bonneville 1992113 sources
- Bonneville 1993138 sources
- Bonneville 199488 sources
- Bonneville 1995244 sources
- Bonneville 1996150 sources
- Bonneville 1997147 sources
- Bonneville 1998277 sources
- Bonneville 1999143 sources
- Bonneville 2000214 sources
- Bonneville 2001129 sources
- Bonneville 200289 sources
- Bonneville 200354 sources
- Bonneville 200428 sources
- Bonneville 200527 sources
Questions and answers
What are the most common problems with the 1986 Pontiac Bonneville?
Owner complaints to NHTSA most often mention: exterior lighting, powertrain, structure. Total complaints: 3. The most frequent symptoms in complaint texts: headlights and tail lights (33%).
How many service bulletins (TSB) were issued for the 1986 Pontiac Bonneville?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 1986 Pontiac Bonneville from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 1986 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.