Many New Expensive Trucks Can’t Follow California Winter Tire Chain Law

Over the past few years, automakers have all released new off-road trucks with increasing large, knobby tires which you’d think would make them better for winter driving.

However, these trucks loaded with off-road equipment can’t meet a California tire chain law for winter driving even though the state thinks otherwise.

Tire Chains for Winter Driving

First, what are tire chains and why should you use them?

In the winter, there are certain times when the weather gets so bad, roads become almost impassable after being covered over with snow and ice. Even with a good set of tires, vehicles can slide off the roadway and crash.

Local department of transportation offices will mandate the use of tire chains, a type of tire traction device literally wrapped around tires, in an effort to keep the roadway open for commerce and emergency needs.

In some areas, there are pre-built tire chain-up areas made for this purpose like in higher mountain passes of northern California.

Many States Mandate Tire Chains

Several states have laws in place for the use of tire chains when the weather gets bad.

The tire chain laws are commonly found in mountains states like California or Colorado, but even Nebraska has tire chain laws for when conditions get that bad.

Typically these chain laws are meant for commercial vehicles and most consumer vehicles get a pass as long as they have either 4WD or AWD and a good set of tires.

That isn’t the case for California.

California DOT Law is For All Vehicles

For California, they specify commercial vehicles have tire chains as well as consumer vehicles even if those vehicles have 4WD or AWD.

They also state you must carry chains even if you don’t need 4WD or AWD: “Even though weather conditions may not warrant the use of chains on 4-wheel-drive vehicles at a particular time, to enter a chain control area, you must have a set of chains (for one drive axle) for your vehicle in your possession. If conditions worsen or you have trouble controlling your vehicle, you must stop and install the chains.”

Tire chains aren’t a choice in those areas in California, you must have them. That’s the law.

New Off-Road Trucks Can’t Use Tire Chains?

The problem with California’s law is many of the new off-road trucks coming out in the last few years from factory have larger tires that can’t use tire chains.

Looking at the owner’s manuals for Ford, GM, Ram and Toyota, for example, all of them state don’t use chains if tire sizes exceed a certain size.

GM spells out the problem with “If the vehicle has 275/50R22, 275/60R20, LT265/60R20, LT265/70R17, LT275/65R18, or LT275/70R18 size tires, do not use tire chains. There is not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension, or other vehicle parts. The area damaged by the tire chains could cause loss of control and a crash. Use another type of traction device only if its manufacturer recommends it for the vehicle’s tire size combination and road conditions. Follow that manufacturer’s instructions. To avoid vehicle damage, drive
slow and readjust or remove the traction device if it contacts the vehicle. Do not spin the wheels. If traction devices are used, install them on the rear tires.”

Ford, Ram and Toyota all state don’t use chains on tire sizes that belong on their off-road trucks. Ford includes the Tremor and Raptor. For Ram that is the Rebel, RHO and the TRX. Toyota is the TRD Pro.

California Says Ignore that Information?

Incredibly, the California DOT has a section that addresses the information above on their website.

They state:

“The manufacturer of my vehicle recommends that chains not be installed on it. Do I still have to put on chains?

Yes. Many vehicles which will not accommodate conventional link-type chains will accommodate cable chains or other devices such as ‘Spikes Spider.’ If your vehicle is not equipped with some type of tire traction device, it is neither safe nor lawful for you to enter a chain control area. If you choose not to install tire traction devices on your vehicle, you may not enter a chain control area.”

What are Spikes Spider?

A Spikes Spider is a Swiss-made device that snaps on to your wheel and spreads chains around your tire.

This looks to be a much simpler and quicker way to install chains on a vehicle.

Interestingly though, I typed in a few of the sizes for various off-road trucks.

Starting with GM, I found a kit for all the tires mentioned above except 265/70R17 for either $720 with an adapter kit or $700 without for 2 wheels.

Ford owners can find a similar kit for the Tremor meanwhile the Ford Raptor comes with 315/70R17 and nothing is available from Spikes Spyder to fit.

This is the same for Ram owners who can find the same kit for the Rebel, but nothing for the RHO or TRX.

The Toyota Tundra TRD Pro uses 285/65R18 and Spikes Spyder doesn’t make anything for that size.

What Are Truck Owners Supposed to Do?

As someone who owns a 2025 Ram 1500 RHO right now as a long-term review vehicle, I had plans on doing some winter road trips and that might include heading out to the California beaches. What then am I supposed to do or somebody who lives locally with one of these highly capable off-road trucks? Apparently, stay away?

Or do as the locals say to do and just carry chains without any real plans to use them. They say cops will just let you pass and the law only really applies on the worst days anyway the “R3” days when snowfall is really coming down.

Oh and if you do plan on having a set of chains that do work you can find a set on a website like Tirechain.com for $300 each. You will damage your truck in the process or you don’t drive your truck on those snowy days.

Choices, choices…