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

1999 vs 2000 OLDSMOBILE ALERO

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

▲ 20.0% more reports in the equal exposure window

1999 456 complaints 2000 547 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
EXTERIOR LIGHTING 8.1% 21.8% ▲ 13.7 pts larger share
SUSPENSION 6.6% 1.8% ▼ 4.8 pts smaller share
ENGINE 14.0% 11.5% ▼ 2.5 pts smaller share
AIR BAGS 2.0% 4.0% ▲ 2.1 pts larger share
ELECTRICAL SYSTEM 14.0% 12.3% ▼ 1.8 pts smaller share
VISIBILITY 8.3% 6.8% ▼ 1.6 pts smaller share
TIRES not reported 1.5% ▲ 1.5 pts larger share
STRUCTURE 5.0% 3.7% ▼ 1.4 pts smaller share
SEAT BELTS 1.8% 0.6% ▼ 1.2 pts smaller share
STEERING 3.7% 2.7% ▼ 1.0 pts smaller share
SERVICE BRAKES 20.2% 19.2% ▼ 1.0 pts smaller share
PARKING BRAKE 0.7% not reported ▼ 0.7 pts smaller share
WHEELS 2.2% 1.7% ▼ 0.5 pts smaller share
FUEL SYSTEM 4.0% 4.4% ▲ 0.4 pts larger share
POWER TRAIN 4.0% 3.7% ▼ 0.3 pts smaller share
VEHICLE SPEED CONTROL 2.0% 2.0% ▲ 0.0 pts larger share
UNKNOWN OR OTHER 75.0% 75.7% ▲ 0.7 pts larger share

NHTSA Safety Recalls recalls · snapshot 2026-08-22

Recall campaigns

1999 4

Campaign components: ELECTRICAL SYSTEM, FUEL SYSTEM, OTHER, STEERING, and STRUCTURE

2000 5

Campaign components: ELECTRICAL SYSTEM, EXTERIOR LIGHTING, FUEL SYSTEM, OTHER, POWER TRAIN, and STRUCTURE

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Safety signals

◆ Fires
11 → 7
◆ Injuries
13 → 20