You may have grown up in Detroit, Omaha, or some other place where snow is just “winter” and not “a natural disaster Instagrammed by tourists,” but Southern California mountain driving is a different beast entirely. Yes, they have snow in the Midwest. But what they do not have is a million switchbacks, a thousand feet of elevation gain, and a parade of rental cars fishtailing up Highway 330 like they’re auditioning for The Fast and the Frostbitten.
So before you attempt driving up to Big Bear Lake, Mammoth Lakes, or even Lake Tahoe—let’s talk how to install snow chains, and the Southern California snow-driving commandments that will keep you alive, uninjured, and off TikTok’s “Tourists Behaving Badly.”
Step One: Figure Out Your Drive Tires (Yes, Really)
The most important thing you need to know before chaining up: which tires actually move your car.
Front-wheel drive? Chains go on the front.
Rear-wheel drive? Chains go on the back.
All-wheel drive? Only cables fit all-wheel-drive vehicles.
Deep breath, Becky. Just check your manual. It will tell you whether to put them on the front or back if you ever need them—which is generally only during apocalyptic blizzard conditions.
Southern California Chain Requirements: R1, R2, R3 Explained
Welcome to CalTrans’s version of “choose your own adventure,” except every option involves ice, panic, and somebody from Orange County sliding sideways in a leased Audi.
R1:
You don’t need to chain up, but it may begin snowing soon and you should be prepared.
Tourists start sweating. Locals shrug.
R2:
Chains are required on everything except true 4WD with snow tires or all-wheel-drive vehicles.
This is when you ask yourself whether that Starbucks trip is really worth it.
R3:
Chains are required on every single vehicle, including 4WD and AWD.
This is the “Are you absolutely sure you need those potatoes for your Venison Chili?” stage.
If it’s R3 and you’re not in labor or rescuing a stranded golden retriever, just stay home, babe.
Cables vs. Chains: The Reality Check
Let’s cut to the chase:
Snow Cables
- What tourists buy
- Easy to install, easy to break
- Come off frequently
For AWD vehicles (Tesla, Subaru, etc.), cables are often the only option thanks to tight wheel wells. But here’s the kick in the snow pants:
Putting cables on an AWD car cancels out your AWD.
Yes. Really.
It basically turns your $50,000 sophisticated snow machine into a confused go-kart.
So if road conditions are bad enough that your AWD vehicle requires cables?
Stay. Inside. The cabin.
Walk, snowshoe, use the local shuttle, or wait for the storm to pass and enjoy your Blue Bird Day.
Snow Chains
This is what locals carry.
They work.
They grip.
They also weigh a ton and feel like wrestling a metal octopus in a blizzard, but that’s the price of traction, baby.
Most mountain locals carry chains for all four tires during R3 conditions. We don’t play.
Driving Tips (From Someone Who Survived the ’90s in a Manual Transmission Dodge)
Kids today don’t know what a stick shift is. Unless you’re older than a millennial—old enough to have voted for one of the Bushes—you probably think a clutch is a purse.
But modern cars have Steptronic or manual-mode transmissions, which means you can still downshift.
Southern California Snow Driving Tip #1: Downshift. Don’t brake.
Your car—and your insurance agent—will thank you.
Practice Before You Go
Don’t wait until Highway 18 is a whiteout to learn how chains work.
Practice at home in your driveway where:
- It’s warm
- You can use your fingers
- No one is honking
- You can cry in private if necessary
Also: wear gloves. Thick ones. Your fingers will otherwise freeze faster than your attitude when someone asks if Big Bear is “like Aspen.” If you are still confused on how to install the chains, watch a YouTube video.
When Chains Aren’t Enough
If you get stuck even with snow chains on your Volkswagen Jetta (no shame—we’ve all seen worse), always carry:
- A shovel
- Old-school non-clumping kitty litter
This combo has saved more stranded tourists than AAA, prayer, and the guy in the 4Runner who swears he “really knows snow driving.”
Know Before You Go
Always check local road conditions:
- Big Bear Lake visitor center
- Socalmountains.com
- Bensweather.com for local Big Bear weather.
- Mammoth Lakes road updates
- CalTrans highway alerts
These small-town visitor centers know more in five minutes than the entire Internet.
The Southern California Snow-Driving Commandments
Just remember the ten snow chain commandments when you are chaining up
1. I am the Highway Patrol thy God; thou shalt have no other laws before Mine.
Especially not whatever nonsense you learned from your cousin who “totally drove through a blizzard once in Reno.”
2.Thou shall not take the name of the Lord thy God in vain while putting on the tire chains
Seriously bro in the lowered Honda Civic.
3. Remember to keep holy the Chain Control Zone.
And by “holy” I mean stop acting shocked when you’re told to chain up your Prius.
4. Honor thy father and mother by not making them identify your body on the mountain.
Slow down. The speed limit is not a suggestion.
5. Thou shalt not kill… thyself or others by driving on bald tires.
If your tread looks like a baby’s bottom, turn around and go home.
6. Thou shalt not commit adultery… with the oncoming lane.
Stay in your lane. Even if you “feel” like the road should be wider.
7. Thou shalt not steal parking spots at the snow play area.
Especially not from families who actually know how to parallel park.
8. Thou shalt not bear false witness to CHP.
No, your “chains are totally in the trunk,” when we both know it’s just reusable grocery bags and regret back there.
9. Thou shalt not covet thy neighbor’s lifted 4×4.
Just because he can plow through a snow berm doesn’t mean your Honda Fit can.
10. Thou shalt not covet thy neighbor’s goods… especially their snow shovel, traction boards, or functioning common sense.
I really shouldn’t have to say this, but I don’t know how often the Airbnb next store has “Borrowed a shovel from our front yard. Pack your own gear like an adult who has seen winter before.
Carry chains.
Practice installing them.
Don’t wait for R3.
And for the love of all things flannel, stop trying to take a Prius into a blizzard.
