The weight plate on a car, also known as a car weight rating plate or weight specification plate, is a metal or adhesive label that provides important information about the car’s weight ratings, including its maximum allowable weight, gross car weight rating (GVWR), and other related specifications. This plate is typically affixed to the car, often in the door jamb or on the inside of the driver’s side door, where it is easily visible and accessible. The weight plate is an essential part of a car’s identification and compliance with safety and regulatory standards.
The information found on a weight plate includes:
- Gross Vehicle Weight Rating (GVWR): This is the maximum allowable weight for the fully loaded car, including passengers, cargo, and fluids. It encompasses the car’s own weight plus everything it carries. Exceeding the GVWR can lead to unsafe driving conditions and potential mechanical issues.
- Gross Axle Weight Rating (GAWR): The GAWR indicates the maximum weight that each axle of the car can support. There are typically separate GAWR values for the front and rear axles.
- Curb Weight: The curb weight refers to the weight of the car as it comes from the factory, without passengers, cargo, or additional equipment.
- Maximum Payload: The maximum payload is the weight that the car can carry in terms of passengers, cargo, and any additional items.
- Tire Size and Pressure: Some weight plates also include information about the recommended tire size and tire pressure for the car.
- Towing Capacity: In some cases, weight plates may include the car’s towing capacity, indicating the maximum weight it can safely tow.
- Vehicle Identification Number (VIN): The weight plate often includes the car’s unique VIN, which is a 17-character identifier used for tracking and registration purposes.
- Manufacturer Information: The weight plate typically includes details about the car’s manufacturer, model, production date, and other pertinent information.
The weight plate serves as a reference for both the car owner and regulatory authorities to ensure that the car is operated within safe limits and in compliance with legal requirements. It’s crucial for drivers to understand and adhere to the weight ratings specified on the weight plate to maintain their own safety and the safety of others on the road. If modifications are made to the car that could impact its weight, it’s important to consult the weight plate to determine how those modifications may affect the car’s overall capacity and safety.