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

1988 vs 1989 FORD THUNDERBIRD

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 455 months on market for each model year

Exposure window calculated through Aug 22, 2026

Age-matched reports

▲ 32.6% more reports in the equal exposure window

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 1988 share 1989 share Share change
VEHICLE SPEED CONTROL 8.7% 20.5% ▲ 11.8 pts larger share
SERVICE BRAKES 5.4% 16.4% ▲ 11.0 pts larger share
ELECTRICAL SYSTEM 28.3% 18.0% ▼ 10.2 pts smaller share
EXTERIOR LIGHTING 10.9% 1.6% ▼ 9.2 pts smaller share
SEAT BELTS 19.6% 12.3% ▼ 7.3 pts smaller share
WHEELS not reported 3.3% ▲ 3.3 pts larger share
FUEL SYSTEM 1.1% 4.1% ▲ 3.0 pts larger share
POWER TRAIN 3.3% 1.6% ▼ 1.6 pts smaller share
TIRES 1.1% 2.5% ▲ 1.4 pts larger share
SUSPENSION 1.1% 2.5% ▲ 1.4 pts larger share
VISIBILITY 1.1% 2.5% ▲ 1.4 pts larger share
STEERING 3.3% 2.5% ▼ 0.8 pts smaller share
ENGINE 7.6% 8.2% ▲ 0.6 pts larger share
STRUCTURE 1.1% 0.8% ▼ 0.3 pts smaller share
UNKNOWN OR OTHER 84.8% 73.0% ▼ 11.8 pts smaller share

NHTSA Safety Recalls recalls · snapshot 2026-08-22

Recall campaigns

1988 2

Campaign components: ELECTRICAL SYSTEM and POWER TRAIN

1989 5

Campaign components: ELECTRICAL SYSTEM, FUEL SYSTEM, GASOLINE, SERVICE BRAKES, AIR, and SUSPENSION

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Safety signals

◆ Fires
16 → 24
◆ Injuries
7 → 9