Lexus ES300 vs Hyundai Ioniq 5

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure	Lexus ES300	Hyundai Ioniq 5
Complaints on file	862	2,124
Model years covered	1992–2013	2022–2026
Worst model year	2002	2023
Best model year	1999	2026
Crashes reported	212	61
Fires reported	28	7
Injuries reported	99	18
Deaths reported	7	0
Most complained-about part	Acceleration & Cruise Control	Electrical System
Share of complaints involving harm	40.1%	4%

Lexus ES300 by year

46 53 50 55 44 50 61 35 78 36 194 147 1 4 8

92 93 94 95 96 97 98 99 00 01 02 03 05 06 13

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Acceleration & Cruise Control 151 17.5%

Transmission & Drivetrain 122 14.2%

Engine & Cooling 92 10.7%

Airbags 73 8.5%

Electrical System 72 8.4%

Brakes 65 7.5%

Windows, Mirrors & Wipers 35 4.1%

Seat Belts 35 4.1%

Hyundai Ioniq 5 by year

658 619 350 464 33

22 23 24 25 26

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Electrical System 987 46.5%

Fuel & Propulsion 272 12.8%

Transmission & Drivetrain 248 11.7%

Driver Assist & Collision Avoidance 151 7.1%

Other & Unspecified 117 5.5%

Engine & Cooling 113 5.3%

Acceleration & Cruise Control 63 3.0%

Brakes 59 2.8%