Subaru WRX & WRX STI Manuals 2017 WRX & WRX STI Owner’s Manual | Page 566

Consumer information and Reporting safety defects/Tire information

Example 2B
CAUTION

child to use, the calculations are as
follows:
1. Calculate the total weight.

Your vehicle is neither designed nor intended to be
used for trailer towing. Therefore, never tow a trailer with
your vehicle.

2. Calculate the available load capacity.

For example, if a person weighing
143 lbs (65 kg) and a child weighing
40 lbs (18 kg) now enter the same
vehicle (bringing the number of
occupants to three), and a child
restraint system weighing 11 lbs (5
kg) is installed in the vehicle for the

3. The total weight now exceeds
the capacity weight by 22 lbs (10
kg), so the cargo weight must be

13-13

reduced by 22 lbs (10 kg) or more.

& Determining compatibility of
tire and vehicle load capacities
The sum of four tires’ maximum
load ratings must exceed the maximum loaded vehicle weight
(“GVWR”). In addition, sum of the
maximum load ratings of two front
tires and of two rear tires must
exceed each axle’s maximum
loaded capacity (“GAWR”). Original
equipment tires are designed to
fulfill those conditions.
The maximum loaded vehicle
weight is referred to Gross Vehicle
Weight Rating (GVWR). And each
axle’s maximum loaded capacity is
referred to Gross Axle Weight Rating (GAWR). The GVWR and each
axle’s GAWR are shown on the
vehicle certification label affixed to
the driver’s door.
The GVWR and front and rear
GAWRs are determined by not only
the maximum load rating of tires but
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