Acura | On a label inside the driver's door jamb. The code should begin with a letter. |
BMW | Inner strut tower on the driver or passenger side of car. The code should contain three numbers. |
Cadillac | Under the trunk mat on a label. Should be a two-digit code ending in U or a WA number that is four digits long. |
Chevrolet | Under the trunk mat on a label. Should be a two-digit code ending in U or a WA number that is four digits long. |
Chrysler | On a metal tag in the engine bay on the radiator support. The code is three characters. |
Dodge | On a metal tag in the engine bay on the radiator support. The code is three characters. |
Eagle | On a metal tag in the engine bay on the radiator support. The code is three characters. |
Ford | On a label inside the driver's doorjamb. The code should be two digits, normally two letters or a letter and a number. |
Geo | On a metal tag in the engine bay on the firewall. The code should be two digits ending in U or a WA number that is four digits long. |
Honda | On a label inside the driver's door jamb. The code will begin with a letter. |
Hyundai | On a label inside the driver's door jamb. The code will be two digits. |
Infiniti | On a metal tag in the engine bay on the firewall. The code should be three digits, normally two letters and a number. |
Isuzu | On a metal tag in the engine bay on the firewall. The code should be at least two digits long. |
Lexus | On a metal tag in the engine bay on the firewall. The code should be three digits always beginning with a number. |
Mazda | On a metal tag in the engine bay on the firewall. The code should be three digits long. |
Mercedes | On a metal tag in the engine bay on the radiator support. The code should be three numbers. |
Mitsubishi | On a metal tag inside the engine bay on the firewall. The code should be three digits, always starting with a letter. |
Nissan | On a metal tag inside the engine bay on the firewall. The code should be three digits, normally two letters and a number. |
Plymouth | On a metal tag in the engine bay on the radiator support. The code is three characters. |
Pontiac | Under the trunk mat on a label. Should be a two-digit code ending in U or a WA number that is four digits long. |
Saturn | Under the trunk mat on a label. Should be a two-digit code ending in U or a WA number that is four digits long. |
Subaru | On a metal tag in the engine bay on the radiator support. Should be a three-digit code, with the first two digits being numbers (the third may be a number or a letter). |
Toyota | On a metal tag in the engine bay on the firewall. The code should be either three numbers or a number a letter and a number. |
Volkswagen | On a label under the trunk or on the driver's rear wheel well. Code should start with an L" and be four digits long. |
Volvo | On a label under the hood near the driver or passenger strut towers. The code should be three numbers long. |