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

2009 vs 2010 CHEVROLET IMPALA

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 203 months on market for each model year

Exposure window calculated through Aug 22, 2026

Age-matched reports

▼ 46.3% fewer reports in the equal exposure window

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Bars start at the neutral midpoint. Left means a smaller share; right means a larger share.

View component share data as a table

Component	2009 share	2010 share	Share change
POWER TRAIN	5.9%	11.0%	▲ 5.1 pts larger share
AIR BAGS	18.0%	13.7%	▼ 4.3 pts smaller share
VEHICLE SPEED CONTROL	9.6%	6.2%	▼ 3.4 pts smaller share
STEERING	4.7%	6.4%	▲ 1.8 pts larger share
ELECTRICAL SYSTEM	17.4%	19.0%	▲ 1.6 pts larger share
FUEL SYSTEM	1.4%	2.8%	▲ 1.4 pts larger share
WHEELS	1.8%	0.7%	▼ 1.2 pts smaller share
SEAT BELTS	2.0%	3.0%	▲ 1.0 pts larger share
STRUCTURE	1.8%	0.9%	▼ 0.9 pts smaller share
VISIBILITY	1.2%	1.8%	▲ 0.6 pts larger share
ENGINE	11.3%	10.8%	▼ 0.5 pts smaller share
EXTERIOR LIGHTING	1.1%	1.4%	▲ 0.3 pts larger share
TIRES	0.6%	0.5%	▼ 0.2 pts smaller share
FORWARD COLLISION AVOIDANCE	0.1%	0.2%	▲ 0.1 pts larger share
SERVICE BRAKES	4.7%	4.6%	▼ 0.1 pts smaller share
SUSPENSION	2.5%	2.5%	▲ 0.1 pts larger share
UNKNOWN OR OTHER	25.7%	21.3%	▼ 4.4 pts smaller share

NHTSA Safety Recalls recalls · snapshot 2026-08-22

2009 5

Campaign components: AIR BAGS, ELECTRICAL SYSTEM, SEAT BELTS, and SUSPENSION

2010 4

Campaign components: AIR BAGS, ELECTRICAL SYSTEM, SEAT BELTS, and SUSPENSION

NHTSA Consumer Complaints complaints · snapshot 2026-08-21