Snow chains go on your drive wheels before you hit snow or ice

Snow chains are metal links that wrap around your tire to grip snow and ice. You install them on the wheels that power your vehicle — the front wheels on a front-wheel-drive car, the rear wheels on a rear-wheel-drive truck. Most people put them on at home or in a parking lot before driving into winter conditions, not on the roadside in a storm.

The process takes 15 to 30 minutes per wheel once you know the steps. You need the right chain size for your tire (printed on the box), a flat surface, and enough space to work. This guide walks you through the installation, what to check before you drive, and how to remove them when conditions improve.

Key Takeaways

  • Buy chains sized to your tire's width and sidewall height, not your rim size — the box will show both your tire size and the chain size that fits it.
  • Install chains on a flat surface in daylight if possible, with the vehicle in park and the parking brake set, before you encounter snow.
  • Lay the chain flat, drive the wheel partway onto it, find the top and bottom hooks, then tighten all connections before driving slowly for the first quarter-mile to settle the chain.
  • Check that the chain is still tight after the first 15 minutes of driving, because it will loosen as it settles.
  • Remove chains as soon as you reach bare pavement, because they wear quickly on dry roads and can damage your tire.

Choosing the right chain size for your vehicle

The chain size is not the same as your tire size. Your tire size appears on the sidewall as something like 225/65R17. The chain box will list which tire sizes it fits — for example, "Fits 225/65R17 and 235/60R17." Match your exact tire size to the chain package before you buy.

If you are unsure of your tire size, look on the driver's door jamb or in your owner's manual. Some vehicles cannot use chains at all — very low-profile tires (sidewall height under 50% of the width) or tires on certain luxury vehicles may not have room for a chain to fit without hitting the suspension. Check your owner's manual or call a tire shop if you are uncertain.

Buy chains before winter arrives. Stores run out during the first snow, and you cannot install them safely in a blizzard on the shoulder of a highway.

Preparing your vehicle and workspace

Find a flat, paved surface with room to work — a parking lot, driveway, or wide shoulder are all fine. Avoid gravel or dirt, which makes it harder to position the chain correctly. Turn off the engine, set the parking brake, and put the vehicle in park.

Lay out all the chain parts before you start. Most chains come with two side chains (one for each side of the tire), cross chains that connect them, and hooks or tighteners. Read the instruction sheet that came with your chains — different brands attach slightly differently, and the sheet will show you the exact sequence for your model.

If you are installing chains in cold weather, wear gloves that let you grip small metal parts. Have a flashlight ready if it is getting dark.

Installing the chain step by step

Step 1: Lay the chain flat in front of the tire. Spread it out so it forms a V shape pointing toward the tire, with the hooks and tighteners visible. The chain should lie flat on the ground, not bunched up.

Step 2: Drive the tire partway onto the chain. Slowly roll forward until the tire is centered on the chain. The chain should wrap around the bottom half of the tire. Stop and set the parking brake again.

Step 3: Bring the top of the chain over the tire. Lift the upper part of the chain up and over the top of the tire so it wraps all the way around. The two side chains should now form a complete loop around the tire.

Step 4: Hook the chain together at the top. Most chains have hooks or clasps on the ends. Connect them at the top of the tire, but do not tighten yet — just close the connection loosely so the chain stays in place.

Step 5: Tighten the cross chains. The cross chains (the ones that run across the face of the tire) have tighteners or hooks. Tighten these first, working from the center of the tire outward. They should be snug but not so tight that you cannot move them by hand.

Step 6: Tighten the top connection. Go back to the hook or clasp at the top of the tire and tighten it firmly. The chain should now be tight enough that it does not move when you push on it, but not so tight that it digs into the tire.

Step 7: Repeat on the second drive wheel. Install chains on the other drive wheel using the same process.

Checking the fit before you drive

Spin the tire by hand to make sure the chain rotates freely without hitting the suspension, brake line, or fender. If it catches, stop and loosen the chain slightly, then spin again. The chain should have about a quarter-inch of clearance from any part of the vehicle.

Walk around the vehicle and look at both chains from the side. They should sit evenly on the tire with no twists or bunches. If one side is tighter than the other, loosen both and retighten them together.

Drive slowly — no more than 25 to 30 miles per hour — for the first quarter-mile. The chain will settle and may loosen slightly as it does. Pull over after 15 minutes and check the tightness again. Retighten any connections that have come loose.

Driving with chains and knowing when to remove them

Chains are meant for snow and ice only. Drive slowly and avoid sudden acceleration, hard braking, or sharp turns, which can break the chain or throw it off the tire. If you feel the chain slip or hear it rattling, pull over and check the tightness.

Remove chains as soon as you reach bare pavement. Driving on dry asphalt with chains on will wear both the chain and your tire quickly and can damage the sidewall. If you are unsure whether the road ahead is clear, drive slowly until you can see the surface.

To remove chains, reverse the installation: loosen the top connection first, then the cross chains, then lift the chain off the tire. Lay it flat to dry before storing it in a cool, dry place. Chains left wet will rust.

Troubleshooting common installation problems

The chain is too loose and rattles when you drive. Pull over and tighten the cross chains first, then the top connection. Recheck after another 15 minutes of driving.

The chain is too tight and the tire will not spin freely. Loosen the top connection and the cross chains slightly. The chain should be snug but not rigid. Spin the tire by hand to confirm it moves freely.

The chain hits the suspension or brake line. This means the chain is not positioned correctly on the tire. Remove it, lay it flat again, and drive the tire onto it more slowly, making sure it is centered. Retighten and check clearance again.

One side of the chain is tighter than the other. Loosen both the top connection and the cross chains completely, then retighten them together so the tension is even on both sides of the tire.

Frequently Asked Questions

Do I need chains on all four wheels?

No. Chains go only on your drive wheels — the wheels that power the vehicle. Front-wheel-drive cars need chains on the front two wheels. Rear-wheel-drive trucks need chains on the rear two wheels. All-wheel-drive vehicles can use chains on all four, but most people use them on the drive wheels only.

Can I install chains while driving or on the highway?

You can, but it is much harder and more dangerous. Install them at home or in a parking lot before you encounter snow. If you get caught in unexpected snow, pull off the road to a safe, flat area away from traffic before you install them.

How tight should the chain be?

Tight enough that it does not move when you push on it, but not so tight that you cannot move the tightener by hand. The chain will settle after 15 minutes of driving, so plan to pull over and retighten it once.

What if my vehicle has a very low tire profile?

Low-profile tires (sidewall height under 50% of the width) may not have room for chains. Check your owner's manual or contact a tire shop. Some vehicles use cable chains instead, which are thinner and fit tighter spaces.

Can I leave chains on while driving on bare pavement?

You can for a short distance if you are unsure whether the road is clear, but remove them as soon as you reach dry pavement. Chains wear quickly on asphalt and can damage your tire sidewall if left on too long.