It's important to ensure the trailer you plan to tow is within the towing capacity of your Subaru, so you need to understand the different Trailer Weights in their own right and also how they impact on your Vehicle Weights.

For more detail on Trailer Weights keep reading or watch here.

Overview
Trailer weights are specified by the trailer manufacturer. As with a towing vehicle, a trailer has an empty weight, Tare Weight, and a maximum weight limit, the Aggregate Trailer Mass (ATM). The difference between these two is the Trailer Payload.

When considering a trailer for your vehicle, it's important to look at the Aggregate Trailer Mass (ATM) relative to the vehicle's towing capacity rather than the Tare Weight, as it is unlikely that you will be driving around with an empty trailer.

Impact of Trailer Weight on the Towing Vehicle
Actual weight of the load in the trailer and how load is distributed in the trailer and the vehicle will impact Tow Ball Download. Any change to Tow Ball Download when the trailer is hitched will impact the Vehicle Payload and Gross Vehicle Mass.

How to Check Towing Weights
As the driver it's your responsibility to ensure that your towing weights are all within the specified limits from both a legal and safety perspective. There are a few ways that you can do this:

Purchase or borrow towing weight scales and do the measurements at home
Contact a Mobile Towing Weight Service - they come to you and measure weighs
Use a Public Weighbridge - drive to your nearest weighbridge to check the weights

Trailer Weights

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