Equal-exposure complaint evidence and changes in the reported problem mix

2003 vs 2004 PONTIAC GRAND PRIX

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Share shifts show how a vehicle's problem mix changed. They do not measure reliability, and complaint counts are not normalized for sales volume.

First 275 months on market for each model year

Exposure window calculated through Aug 22, 2026

Age-matched reports

▲ 346.5% more reports in the equal exposure window

2003 101 complaints 2004 451 complaints

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Component share shift

Bars start at the neutral midpoint. Left means a smaller share; right means a larger share.

View component share data as a table
Component 2003 share 2004 share Share change
ENGINE 44.1% 25.1% ▼ 19.1 pts smaller share
STEERING not reported 10.0% ▲ 10.0 pts larger share
ELECTRICAL SYSTEM 11.8% 16.0% ▲ 4.2 pts larger share
FUEL SYSTEM 4.9% 1.6% ▼ 3.4 pts smaller share
WHEELS 1.0% 4.2% ▲ 3.2 pts larger share
AIR BAGS 1.0% 4.2% ▲ 3.2 pts larger share
EXTERIOR LIGHTING 6.9% 8.4% ▲ 1.6 pts larger share
SUSPENSION 1.0% 2.0% ▲ 1.0 pts larger share
SERVICE BRAKES 5.9% 6.9% ▲ 1.0 pts larger share
VEHICLE SPEED CONTROL 2.9% 2.0% ▼ 0.9 pts smaller share
SEAT BELTS not reported 0.9% ▲ 0.9 pts larger share
POWER TRAIN 3.9% 3.3% ▼ 0.6 pts smaller share
VISIBILITY 2.0% 2.4% ▲ 0.5 pts larger share
TIRES not reported 0.4% ▲ 0.4 pts larger share
PARKING BRAKE not reported 0.2% ▲ 0.2 pts larger share
STRUCTURE 4.9% 5.1% ▲ 0.2 pts larger share
UNKNOWN OR OTHER 36.3% 39.9% ▲ 3.6 pts larger share

NHTSA Safety Recalls recalls · snapshot 2026-08-22

Recall campaigns

2003 7

Campaign components: ENGINE AND ENGINE COOLING, EXTERIOR LIGHTING, and FUEL SYSTEM, OTHER

2004 9

Campaign components: ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING, EXTERIOR LIGHTING, SERVICE BRAKES, HYDRAULIC, STRUCTURE, and VEHICLE SPEED CONTROL

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Safety signals

◆ Fires
37 → 58
◆ Injuries
6 → 46