Do you need chains on all 4 tires or just 2?
Ideally, you should put tire chains on all four tires for all types of vehicles. By using four tire chains, you’ll be able to obtain the best possible traction and balance. Problems can occur by only chaining one axle.
Do I need 4 snow chains on a 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. NOTE: (Four-wheel/all-wheel drive vehicles must carry traction devices in chain control areas.)
Do you need snow chains for AWD SUV?
Yes. Even though weather conditions may not warrant the use of chains on 4-wheel-drive vehicles at a particular time, to enter a chain control area, you must have a set of chains (for one drive axle) for your vehicle in your possession.