AWD or Chains? What You Actually Need to Drive Snoqualmie Pass

If you're driving from Seattle to the mountains in winter (Snoqualmie, Stevens, or the passes beyond), the most confusing part isn't the snow. It's the signs. "Chains required (except AWD/4WD with approved traction tires)" trips up locals and visitors alike. Here's what Washington actually requires, and how to pick a rental that keeps your trip simple.

The three traction stages on Snoqualmie Pass

WSDOT posts one of these conditions when weather rolls in over I-90:

• Traction Advisory: approved traction tires (good all-season or winter tires) advised. Most well-shod vehicles are fine.
• Chains Required (except AWD/4WD): passenger vehicles need chains, unless you're in an AWD or 4WD vehicle fitted with approved traction tires. This is the stage where AWD earns its keep.
• Chains Required (all vehicles): the strictest stage. Even AWD must chain up. It's rare and usually short-lived, but it happens.

The takeaway: at the most common winter stage, an AWD vehicle with good tires lets you skip chains entirely, which is exactly why AWD is the smart rental choice for pass driving.

Is AWD enough on its own?

For the typical Snoqualmie winter day, an all-wheel-drive SUV on quality all-season or winter tires handles the climb and descent confidently. AWD helps you go; good tires and smooth braking help you stop, which matters more on the downhill. Even with AWD, always carry chains in the car during chain season, because the "all vehicles" stage can be called without warning.

The right rentals for the pass

Every AWD vehicle in our fleet is delivered showroom-ready and prepped for Washington weather. For pass trips, look at:

• A capable all-wheel-drive SUV for the best grip-to-comfort balance.
• The Toyota Land Cruiser or Grand Highlander when you want room for gear and passengers.
• An AWD EV like the Tesla Model Y or Rivian R1S: instant torque is genuinely confidence-inspiring in snow (just plan charging around the cold).

Before you leave Seattle

• Check the live pass report on the WSDOT app or website the morning you drive.
• Confirm chains are in the car during chain season; ours travel with the vehicle.
• Fuel up or charge before the climb; mountain stations are sparse.
• Give yourself extra time. Pass driving rewards patience.

Want a no-stress mountain rental? Browse our AWD SUVs, pick the exact car you'll drive, and book on Turo, or set a free alert for ski season.