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

1990 vs 1991 ISUZU TROOPER

NHTSA Consumer Complaints complaints · snapshot 2026-08-22

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 431 months on market for each model year

Exposure window calculated through Aug 22, 2026

Age-matched reports

▲ 150.0% more reports in the equal exposure window

NHTSA Consumer Complaints complaints · snapshot 2026-08-22

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 1990 share 1991 share Share change
WHEELS not reported 14.6% ▲ 14.6 pts larger share
STRUCTURE 13.6% 1.8% ▼ 11.8 pts smaller share
VEHICLE SPEED CONTROL not reported 9.1% ▲ 9.1 pts larger share
SUSPENSION not reported 3.6% ▲ 3.6 pts larger share
FUEL SYSTEM 9.1% 5.5% ▼ 3.6 pts smaller share
SERVICE BRAKES 4.6% 1.8% ▼ 2.7 pts smaller share
EXTERIOR LIGHTING not reported 1.8% ▲ 1.8 pts larger share
TIRES 4.6% 3.6% ▼ 0.9 pts smaller share
SEAT BELTS 4.6% 3.6% ▼ 0.9 pts smaller share
ENGINE 22.7% 21.8% ▼ 0.9 pts smaller share
ELECTRICAL SYSTEM 13.6% 12.7% ▼ 0.9 pts smaller share
POWER TRAIN 18.2% 18.2% ◆ 0.0 pts unchanged
UNKNOWN OR OTHER 90.9% 90.9% ◆ 0.0 pts unchanged

NHTSA Safety Recalls recalls · snapshot 2026-08-22

Recall campaigns

1990 3

Campaign components: ENGINE AND ENGINE COOLING and POWER TRAIN

1991 3

Campaign components: ENGINE AND ENGINE COOLING and POWER TRAIN

NHTSA Consumer Complaints complaints · snapshot 2026-08-22

Safety signals

◆ Fires
5 → 15
◆ Injuries
2 → 3