There have been 5,063 defect investigations conducted for 667 vehicle brands by the United States Department of Transportation [1]. The top 38 vehicle brands with the most defect investigations are listed in the following table.
| Vehicle Brand | Number of Investigations |
|---|---|
| Ford | |
| Chevrolet | |
| Dodge | |
| Mercury | |
| GMC | |
| Oldsmobile | |
| Chrysler | |
| Buick | |
| Jeep | |
| Plymouth | |
| Toyota | |
| Honda | |
| Volkswagen | |
| Nissan | |
| Volvo | |
| Cadillac | |
| Lincoln | |
| Mazda | |
| Hyundai | |
| Kia Motor | |
| BMW | |
| Saturn | |
| Mitsubishi | |
| Subaru | |
| Audi | |
| Mercedes Benz | |
| SAAB | |
| Acura | |
| Suzuki | |
| Lexus | |
| Infiniti | |
| Land Rover | |
| International | |
| Porsche | |
| Mini | |
| Jaguar | |
| GEO | |
| Smart |
