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

2016 vs 2017 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 119 months on market for each model year

Exposure window calculated through Aug 22, 2026

Age-matched reports

▲ 7.5% more reports in the equal exposure window

2016 107 complaints 2017 115 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 2016 share 2017 share Share change
ENGINE 10.9% 14.8% ▲ 3.9 pts larger share
LANE DEPARTURE 3.6% not reported ▼ 3.6 pts smaller share
STEERING 11.8% 8.7% ▼ 3.1 pts smaller share
AIR BAGS 9.1% 12.2% ▲ 3.1 pts larger share
VEHICLE SPEED CONTROL 3.6% 0.9% ▼ 2.8 pts smaller share
FUEL SYSTEM 4.6% 2.6% ▼ 1.9 pts smaller share
STRUCTURE 2.7% 0.9% ▼ 1.9 pts smaller share
WHEELS 0.9% 2.6% ▲ 1.7 pts larger share
ELECTRICAL SYSTEM 8.2% 7.0% ▼ 1.2 pts smaller share
EXTERIOR LIGHTING 5.5% 4.4% ▼ 1.1 pts smaller share
SEAT BELTS 2.7% 1.7% ▼ 1.0 pts smaller share
TIRES 0.9% not reported ▼ 0.9 pts smaller share
FORWARD COLLISION AVOIDANCE 0.9% not reported ▼ 0.9 pts smaller share
SUSPENSION not reported 0.9% ▲ 0.9 pts larger share
VISIBILITY 0.9% 1.7% ▲ 0.8 pts larger share
SERVICE BRAKES 2.7% 3.5% ▲ 0.8 pts larger share
POWER TRAIN 8.2% 8.7% ▲ 0.5 pts larger share
UNKNOWN OR OTHER 29.1% 33.0% ▲ 4.0 pts larger share

recalls · none on file

Recall campaigns

2016 0

Campaign components: not reported

2017 0

Campaign components: not reported

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Safety signals

◆ Fires
4 → 0
◆ Injuries
10 → 8