Toyota 4Runner manuals

Toyota 4Runner: Towing related terms

GCWR (Gross Combination Weight Rating)


The maximum allowable gross combination weight. The gross combination weight is the sum of the total vehicle weight (including the occupants, cargo and any optional equipment installed on the vehicle) and the weight of the trailer being towed (including the cargo in the trailer).

GVWR (Gross Vehicle Weight Rating)


The maximum allowable gross vehicle weight. The gross vehicle weight is the total weight of the vehicle. When towing a trailer, it is the sum of the vehicle weight (including the occupants, cargo and any optional equipment installed on the vehicle) and the tongue weight.

GAWR (Gross Axle Weight Rating)


The maximum allowable gross axle weight. The gross axle weight is the load placed on each axle (front and rear).

TWR (Trailer Weight Rating)


The maximum allowable gross trailer weight. The gross trailer weight is the sum of the trailer weight and the weight of the cargo in the trailer.

TWR is calculated assuming base vehicle with one driver, one front passenger, towing package (if available), hitch and hitch systems (if required).

Additional optional equipment, passengers and cargo in the vehicle will reduce the trailer weight rating so as not to exceed GCWR, GVWR and GAWR.

If the gross trailer weight exceeds 3000 lb. (1360 kg), it is recommended to use a trailer with 2 or more axles.

Unbraked TWR (Unbraked Trailer Weight Rating)


The trailer weight rating for towing a trailer without a trailer service brake system.

Tongue Weight


The load placed on the trailer hitch ball.

Trailer towing
Your vehicle is designed primarily as a passenger-and-load-carrying vehicle. Towing a trailer can have an adverse impact on handling, performance, braking, durability, and fuel consumption. For yo ...

Weight limits
• The gross trailer weight must never exceed the TWR described in the table. • The gross combination weight must never exceed the GCWR described in the table. • The gross vehicle weight ...

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