Do you put snow chains on all 4 tires?
Four-wheel drive vehicles should use tire chains on all four tires. You must use tire chains for those wheels on the drive axle for two-wheel drive vehicles, but it’s much safer and easier to control if you have chains on all four tires.
Do you need chains on all 4 tires with AWD?
Requirement 2 (R2): Chains or traction devices are required on all vehicles except four-wheel/all-wheel drive vehicles with snow-tread tires on all four wheels.
Do you need 4 tire chains on 4WD?
Legally, it is only necessary to have snow chains for one axle when travelling in mountain areas. However, when driving a 4 x 4 some drivers prefer to use 4 chains (two sets). Although in most conditions a single set of chains will provide enough traction, there are significant benefits with using two sets.