# Kill Switch for Toyota Tundra: Make a Cloned Fob Worthless

> A patent-pending drop-in starter-relay bypass. No cut wires, fully reversible — your Tundra won't crank until you disarm it.

## Quick facts
- **Vehicle:** Toyota Tundra
- **Fits:** 30+ makes — confirm exact fit with the Make/Model/Year + VIN selector
- **Price:** Wired Pushbutton $108 · Wireless Remote $179
- **Install:** Wireless Level 1/5, Wired Level 2–3/5 — no cut wires, 100% reversible, returns to full OEM stock in minutes, does not void warranty
- **What it stops:** drive-away theft — a relay attack, cloned key, or OBD reprogramming can't crank the engine until you disarm it
- **Buy / check fitment:** https://41twentytwo.com/product/vehicle-kill-switch/

You bought a Tundra because it's the truck that outlasts everything — and thieves like it for the same reason. The modern playbook against Toyotas isn't a coat hanger; it's a relay box grabbing your fob signal through the front door, or a programmer on the OBD port. The 41.22 kill switch pulls your factory starter relay and drops in its place, so the starter never cranks no matter what the thief's gear says. Here's how it works on a Tundra. (Different truck in the garage? See kill switches for every vehicle.)

## Why Toyota Tundras get targeted
In the US the Tundra isn't a top target — but the methods used against it work, and pickups are the most-stolen vehicle type on the road. Most thefts are relay attacks, OBD-port reprogramming, or CAN injection through the headlight wiring — a spoofed "key validated" message that cranks the truck without your key. In the 2025 Ontario Tundra wave, many victims still had both fobs in hand. On top of the whole truck, owners also lose tailgates and catalytic converters.
A kill switch doesn't stop a stolen tailgate — but it does stop the part that drives away.

**By the numbers:** 1 in 66 — Tundras stolen in a year in Canada — its highest mass-market theft rate (Équité, 2024) · $66,984 — average loss per pickup theft (HLDI) · 0 — wires cut — our module drops in at the relay

## Pop the relay, drop ours in, the starter stays dead
Pop the factory starter relay out of the fuse box, drop the 41.22 module in its place, done. Every electronic attack — relay box, cloned fob, OBD reprogramming, CAN injection — ends the same way: the truck sends a command to crank the starter, and with the module armed that command lands on a dead circuit. No soldering, no cut wires, and it pops back to stock in minutes.

- **Wired Pushbutton ($108):** A hidden pushbutton you mount somewhere only you know. No batteries, ever.
- **Wireless Remote ($179):** Two keychain remotes, the easiest install we make. Disarm from indoors; works with remote start.

## Watch the drop-in install, start to finish
Pull the factory starter relay, plug the 41.22 module into the empty socket, mount your switch where only you can reach it, and arm it. The wireless version is a same-driveway job; the wired pushbutton adds routing one wire through the firewall. No wire cutting either way, and you can reverse it to stock any time.

## Is a kill switch the best anti-theft for a Toyota Tundra?
Notice the pattern in a relay attack or a CAN-injection headlight hack: the thief never defeats your key — he borrows or fakes it electronically. That's why the right defense is one that doesn't care what the truck's computer believes. Alarms get ignored. GPS trackers tell you where your truck went, not how to keep it. A kill switch is the only layer that stops the truck from moving in the first place, and it stacks fine with whatever you already run.

## Toyota Tundra kill switch FAQ

**Can thieves steal my Tundra if I have both key fobs?**

Yes — that's exactly what happened in the 2025 Ontario Tundra wave, where police cited ignition cloning, rekeying, and OBD-port hacking and many victims still had both fobs. Modern tools impersonate or replace your key electronically. A kill switch works because it doesn't care what the truck's computer believes — the starter circuit is physically dead until you disarm it.

**Will a kill switch stop a relay attack on my Tundra?**

It stops the part that matters: leaving. A relay attack captures your fob's signal from inside your house and can unlock and "start" a push-button truck — but with the 41.22 module armed, the starter never engages. Same answer for CAN injection through the headlight wiring: the spoofed "key validated" message gets the thief a lit dash and nothing else.

**Does installing it void my Toyota warranty?**

No. The kill switch replaces a relay in the fuse box — no wires are cut, nothing is spliced, and there's no permanent modification for a dealer to point at. And if you ever need to, you can return the truck to full OEM stock in just a few minutes by swapping the original relay back in.

**Should I get the wired or wireless version?**

Wireless ($179) is the easiest install we make — Level 1 of 5, two remotes whose batteries last over a year, and it pairs with remote start so you can disarm from indoors. Wired ($108) is a hidden pushbutton with no batteries to ever think about; it's Level 2–3 because you route one wire through the firewall. Both kill the same circuit.

**Is my Tundra 100% theft-proof with this installed?**

No, and anyone who promises that is selling you something. A determined crew with a flatbed can tow any truck, and a starter bypass won't stop a catalytic-converter saw. What it does is kill the fast, quiet, drive-it-away theft — the relay boxes, cloners, and OBD programmers. Make yours the truck that won't start, and the thief moves on.


## Don't wait for the wave to cross the border
From $108 · installs in an afternoon · reversible anytime.

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More: [all vehicles](https://41twentytwo.com/kill-switch-by-vehicle/) · [product & fitment selector](https://41twentytwo.com/product/vehicle-kill-switch/) · [recovery gear](https://41twentytwo.com/product-category/recovery/)

*41.22 Inc · Made in Lake Elsinore, California, USA.*