Nissan D21 vs Hyundai Sonata Hybrid

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	Nissan D21	Hyundai Sonata Hybrid
Complaints on file	466	1,162
Model years covered	1988–1997	2011–2026
Worst model year	1995	2013
Best model year	1996	2024
Crashes reported	66	67
Fires reported	16	34
Injuries reported	35	41
Deaths reported	1	0
Most complained-about part	Body & Structure	Engine & Cooling
Share of complaints involving harm	25.3%	12.2%

Nissan D21 by year

1 5 1 35 21 49 76 159 47 72

88 89 90 91 92 93 94 95 96 97

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

What breaks

Body & Structure 69 14.8%

Engine & Cooling 47 10.1%

Tires 43 9.2%

Transmission & Drivetrain 40 8.6%

Airbags 36 7.7%

Seat Belts 36 7.7%

Brakes 34 7.3%

Electrical System 33 7.1%

Hyundai Sonata Hybrid by year

145 217 172 40 84 185 123 15 8 21 71 30 23 12 15 1

11 12 13 14 15 16 17 18 19 20 21 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

Engine & Cooling 356 30.6%

Electrical System 201 17.3%

Brakes 109 9.4%

Transmission & Drivetrain 96 8.3%

Other & Unspecified 95 8.2%

Fuel & Propulsion 61 5.2%

Steering 52 4.5%

Acceleration & Cruise Control 41 3.5%