Toyota 2015 Prius Owner's Manual page 325

Selecting tire chains
Vehicles with 17-inch tires
Use the correct tire chain size when mounting the tire chains. Chain
size is regulated for each tire size.
Vehicles with 15-inch tires
Use the tire chains of correct size and type.
Use SAE Class "S" type radial tire chains except radial cable chains
or V-bar type chains.
Regulations on the use of tire chains
Regulations regarding the use of tire chains vary depending on loca-
tion and type of road. Always check local regulations before installing
chains.
PRIUS_OM_OM47A17U_DVD_(U)
2-5. Driving information
Side chain:
0.12 in. (3.0 mm)
1.18 in. (30.0 mm)
0.39 in. (10.0 mm)
Cross chain:
0.16 in. (4.0 mm)
0.98 in. (25.0 mm)
0.55 in. (14.0 mm)
I n f o r ma t i o n P r o v i d e d b y :
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