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

2017 vs 2018 TOYOTA PRIUS

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 107 months on market for each model year

Exposure window calculated through Aug 22, 2026

Age-matched reports

▼ 58.1% fewer reports in the equal exposure window

2017 124 complaints 2018 52 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 2017 share 2018 share Share change
EXTERIOR LIGHTING 1.5% 11.5% ▲ 10.0 pts larger share
AIR BAGS 0.8% 9.6% ▲ 8.9 pts larger share
VISIBILITY 20.0% 13.5% ▼ 6.5 pts smaller share
STEERING 6.2% not reported ▼ 6.2 pts smaller share
ELECTRICAL SYSTEM 8.5% 3.9% ▼ 4.6 pts smaller share
ENGINE 6.2% 9.6% ▲ 3.5 pts larger share
STRUCTURE 5.4% 1.9% ▼ 3.5 pts smaller share
WHEELS 4.6% 1.9% ▼ 2.7 pts smaller share
POWER TRAIN 5.4% 3.9% ▼ 1.5 pts smaller share
SERVICE BRAKES 6.9% 5.8% ▼ 1.2 pts smaller share
SEAT BELTS 0.8% not reported ▼ 0.8 pts smaller share
SUSPENSION 0.8% not reported ▼ 0.8 pts smaller share
LANE DEPARTURE 0.8% not reported ▼ 0.8 pts smaller share
FORWARD COLLISION AVOIDANCE 2.3% 1.9% ▼ 0.4 pts smaller share
FUEL SYSTEM 6.2% 5.8% ▼ 0.4 pts smaller share
VEHICLE SPEED CONTROL 7.7% 7.7% ◆ 0.0 pts unchanged
UNKNOWN OR OTHER 26.2% 32.7% ▲ 6.5 pts larger share

NHTSA Safety Recalls recalls · snapshot 2026-08-22

Recall campaigns

2017 3

Campaign components: ELECTRICAL SYSTEM and TIRES

2018 1

Campaign components: ELECTRICAL SYSTEM

NHTSA Consumer Complaints complaints · snapshot 2026-08-21

Safety signals

◆ Fires
2 → 0
◆ Injuries
10 → 5