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

2001 vs 2002 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 299 months on market for each model year

Exposure window calculated through Aug 22, 2026

Age-matched reports

▼ 23.5% fewer reports in the equal exposure window

2001 357 complaints 2002 273 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 2001 share 2002 share Share change
ELECTRICAL SYSTEM 22.1% 33.3% ▲ 11.2 pts larger share
EXTERIOR LIGHTING 15.7% 24.9% ▲ 9.2 pts larger share
SERVICE BRAKES 10.6% 5.9% ▼ 4.8 pts smaller share
VISIBILITY 7.0% 3.3% ▼ 3.7 pts smaller share
FUEL SYSTEM 6.2% 2.9% ▼ 3.2 pts smaller share
POWER TRAIN 3.6% 0.7% ▼ 2.9 pts smaller share
SUSPENSION 3.6% 1.8% ▼ 1.8 pts smaller share
WHEELS 2.8% 1.5% ▼ 1.3 pts smaller share
ENGINE 11.2% 9.9% ▼ 1.3 pts smaller share
VEHICLE SPEED CONTROL 3.1% 1.8% ▼ 1.3 pts smaller share
TIRES 1.1% not reported ▼ 1.1 pts smaller share
STEERING 3.6% 2.6% ▼ 1.1 pts smaller share
PARKING BRAKE 0.6% not reported ▼ 0.6 pts smaller share
AIR BAGS 3.1% 2.6% ▼ 0.5 pts smaller share
STRUCTURE 2.2% 1.8% ▼ 0.4 pts smaller share
SEAT BELTS 1.1% 0.7% ▼ 0.4 pts smaller share
UNKNOWN OR OTHER 60.8% 52.0% ▼ 8.8 pts smaller share

NHTSA Safety Recalls recalls · snapshot 2026-08-22

Recall campaigns

2001 5

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

2002 2

Campaign components: ELECTRICAL SYSTEM and FUEL SYSTEM, OTHER

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Safety signals

◆ Fires
5 → 8
◆ Injuries
18 → 9