1985 Pontiac Grand Prix: common problems

Owners of the 1985 Pontiac Grand Prix filed 3 complaints with NHTSA, most often about engine and cooling and powertrain. Details by component below, with sources.

Key figures

Owner complaints: 3
involving a crash: 1

What fails most often

1 Engine and cooling 33% of all complaints
2 Powertrain 33% of all complaints
3 Seats 33% of all complaints

Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Engine and cooling: 1 complaints (33% of all).
Powertrain: 1 complaints (33% of all).
Seats: 1 complaints (33% of all), 1 of them with a crash reported by the owner.

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
5 L · petrol · 8 cyl
automatic, 3-speed
automatic, 4-speed

Drive: RWD

Components owners complain about

Component	Owner complaints	involving a crash
Engine and cooling	1	0
Powertrain	1	0
Seats	1	1

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

When applying brakes the back of the front seat flies up,pushing you into the dash on the passenger side.
Seats · crash · 1996-02-26 · NHTSA complaint #979694

Comparison

By complaint count this model year ranks 17,150 of 36,656 model years in the NHTSA data (top 47% most complained about).

On average one model year of the Grand Prix has 187 complaints (29 years in the data). This year has 3, below average.

What to check before buying

Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Seats. Occupant sensor, power adjustment, seat mounts.

Questions and answers

What are the most common problems with the 1985 Pontiac Grand Prix?

Owner complaints to NHTSA most often mention: engine and cooling, powertrain, seats. Total complaints: 3. The most frequent symptoms in complaint texts: smoke, burning smell, fire (33%).

How many service bulletins (TSB) were issued for the 1985 Pontiac Grand Prix?

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 1985 Pontiac Grand Prix 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 1985 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 2026-11-05.