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

1999 vs 2000 MERCURY GRAND MARQUIS

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 323 months on market for each model year

Exposure window calculated through Aug 22, 2026

Age-matched reports

▼ 1.3% fewer reports in the equal exposure window

1999 158 complaints 2000 156 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 1999 share 2000 share Share change
VISIBILITY 3.2% 9.6% ▲ 6.5 pts larger share
ENGINE 18.4% 12.2% ▼ 6.2 pts smaller share
SERVICE BRAKES 5.1% 9.0% ▲ 3.9 pts larger share
SUSPENSION 10.8% 7.7% ▼ 3.1 pts smaller share
TIRES 3.8% 1.3% ▼ 2.5 pts smaller share
POWER TRAIN 5.1% 2.6% ▼ 2.5 pts smaller share
SEAT BELTS 3.2% 5.1% ▲ 2.0 pts larger share
STRUCTURE 4.4% 2.6% ▼ 1.9 pts smaller share
STEERING 8.2% 9.6% ▲ 1.4 pts larger share
ELECTRICAL SYSTEM 5.7% 7.1% ▲ 1.4 pts larger share
VEHICLE SPEED CONTROL 6.3% 7.1% ▲ 0.7 pts larger share
FUEL SYSTEM 3.2% 3.9% ▲ 0.7 pts larger share
WHEELS 1.9% 2.6% ▲ 0.7 pts larger share
FORWARD COLLISION AVOIDANCE not reported 0.6% ▲ 0.6 pts larger share
PARKING BRAKE 0.6% not reported ▼ 0.6 pts smaller share
AIR BAGS 2.5% 1.9% ▼ 0.6 pts smaller share
EXTERIOR LIGHTING 10.8% 10.9% ▲ 0.1 pts larger share
UNKNOWN OR OTHER 62.7% 56.4% ▼ 6.3 pts smaller share

NHTSA Safety Recalls recalls · snapshot 2026-08-22

Recall campaigns

1999 5

Campaign components: EQUIPMENT and SEAT BELTS

2000 8

Campaign components: AIR BAGS, EQUIPMENT, SEAT BELTS, and VISIBILITY

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Safety signals

◆ Fires
2 → 5
◆ Injuries
11 → 10