With snow looming, time to dig out those tire chains. Here are some tips

A snowy holiday week beckons, meaning tire-chain laws will be in effect in many SoCal mountains. Roadside installers will be standing by, the best $25 to $75 you’ll ever spend. But be prepared to do it yourself in a pinch. And “pinch” might be the appropriate word if you’re unfamiliar with the process. A video primer helps.

Here’s a refresher

• Be sure the chains fit. Grabbing the wrong set of chains can damage tires and suspension.

• If buying chains, consider cable versions, which often are simpler to work with.

• Figure out whether the chains go on the front or back tires — the owner’s manual can assist. So can your mechanic (the orientation of the engine gives it away).

• Practice at home. Lay out the chains or cables in the driveway, and practice when it’s dry and comfortable.

• Take gloves. A light set of water-resistant gardening gloves works well.

• Make sure all loops and cables are facing the same direction. A twisted link can lead to breakage.

• Once chains are installed and tightened, drive a short distance — say, 20 feet — and retighten them.

How to drive with chains

• Tire company Les Schwab recommends listening for “a loud sound of slapping, or metal on metal.” Stop as soon as possible to prevent damage.

• 25 mph is the maximum speed with chains, most manufacturers and road safety experts say.

• Brake and accelerate gradually to avoid skids or spinouts.

• Once on dry pavement, remove the chains.

If you get stuck in snow

• If you become stranded, the auto club urges you to stay with your vehicle. That makes it easier for rescuers to locate you.

• Tie a brightly colored cloth to the antenna or place a cloth at the top of a rolled up window to signal distress.

• Leave the dome light on at night. It only uses a small amount of electricity and will make it easier for rescuers to

find you.

• Clear the exhaust pipe of snow, ice or mud to prevent deadly carbon monoxide from seeping into the car.

Sources: Auto Club of Southern California, Les Schwab, Esurance