Winter driving
Carry chains. Every time, all winter.
Chain controls can go up on one highway and not another, and they can change within an hour. Carry chains or cables in the car whenever you drive up between November and April — even if your car has snow tires, and even if the forecast looks clear when you leave.
R‑1
Chains on all vehicles, except cars and light trucks under 6,000 lb with snow tires on at least two drive wheels. If you are on snow tires you still have to be carrying chains.
R‑2
Chains on all vehicles, except four‑wheel and all‑wheel drive with snow‑tread tires on all four. Those vehicles still have to carry traction devices.
R‑3
Chains on all vehicles, no exceptions. An all-wheel drive car will usually need two sets rather than one.
Practice fitting them before you come. Pulling over on a mountain shoulder in the dark is hard enough. It is much harder when you are also responsible for someone who cannot get out of the car, and that is the moment most of our families are in. Ten minutes in your own driveway is the best preparation there is.
Front-wheel drive chains the front tires and rear-wheel drive the rear axle. Under chain control the limit is 25–30 mph, and you will usually get about a mile of warning before the checkpoint. Pull completely off the road to fit them — never in a traffic lane.
Buy them before you leave home. There is nowhere in Big Bear to pick up chains on your way in, and by the time you need them you are already on the mountain road. Order them or buy them locally where you live, well before the day.
Chains are sized to your tires, so check the numbers on your tire sidewall and match them — a set that does not fit is the same as no set at all. Self‑tightening chains like these are the easiest kind to fit in the cold, and they are not expensive.
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