Hyundai Ioniq 6 vs Buick Roadmaster
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 | Hyundai Ioniq 6 | Buick Roadmaster |
|---|---|---|
| Complaints on file | 185 | 452 |
| Model years covered | 2023–2025 | 1989–1999 |
| Worst model year | 2023 | 1994 |
| Best model year | 2025 | 1996 |
| Crashes reported | 7 | 61 |
| Fires reported | 0 | 12 |
| Injuries reported | 2 | 43 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Electrical System | Brakes |
| Share of complaints involving harm | 4.9% | 25.7% |
Hyundai Ioniq 6 by year
What breaks
Electrical System
75
40.5%
Other & Unspecified
25
13.5%
Transmission & Drivetrain
18
9.7%
Driver Assist & Collision Avoidance
16
8.6%
Fuel & Propulsion
14
7.6%
Acceleration & Cruise Control
11
5.9%
Engine & Cooling
8
4.3%
Brakes
4
2.2%
Buick Roadmaster by year
What breaks
Brakes
63
13.9%
Electrical System
44
9.7%
Engine & Cooling
40
8.8%
Suspension
38
8.4%
Airbags
33
7.3%
Windows, Mirrors & Wipers
29
6.4%
Transmission & Drivetrain
27
6.0%
Acceleration & Cruise Control
27
6.0%