Finding the right brz fog light switch is one of those small mods that makes a massive difference in how the interior of your Subaru feels. If you're like most BRZ owners, you probably can't stand those "dead" plastic blanks on your dashboard. They're basically a constant reminder of a feature your car doesn't have—or at least doesn't have yet. Whether you're adding fogs to a base trim that didn't come with them or you're trying to fix a broken OEM setup, getting the switch right is the difference between a professional-looking cabin and a hack job that looks like it was wired by a frustrated teenager.
Why the Switch Matters More Than the Lights
It sounds crazy, but the actual light housings are the easy part. You can bolt those in in twenty minutes. The real headache usually starts when you try to figure out how to actually turn the things on. Most people want their brz fog light switch to feel like it belongs there. You want that satisfying click, the correct backlight color to match your gauges, and a fitment that doesn't leave a 2mm gap where dust can collect.
There are generally two ways people go about this. You've got the "factory-plus" crowd who wants the OEM stalk on the steering column, and then you've got the DIYers who prefer a dedicated button on the lower dash panel. Both have their pros and cons, but let's be honest: clicking a tactile button just feels a bit more "race car," doesn't it?
OEM Stalk vs. Dash Button
If you're a purist, you're probably looking for the Subaru factory turn signal stalk that includes the integrated fog light ring. This is the cleanest look possible because it's exactly how the Limited trims come from the factory. The downside? It's usually the most expensive route. You have to pull the steering wheel (or at least the shroud), and if your car isn't pre-wired for it, you're going to be running wires through the firewall anyway.
On the flip side, a dash-mounted brz fog light switch is way easier to deal with. Most BRZs have a panel to the left of the steering wheel with three or four slots for buttons. If you have a base model, most of these are empty. Popping out a blank and sliding in a dedicated switch is incredibly satisfying. Plus, it gives you independent control. A lot of people hate that the factory fog lights turn off automatically when you flip on your high beams. With a separate switch, you're the boss of when those lights stay on.
The Wiring Factor
This is where things can get a little messy. If you buy a cheap kit off eBay or Amazon, the included brz fog light switch might look okay, but the wiring harness is often garbage. I've seen kits where the wires are so thin they feel like dental floss.
When you're picking out a switch, make sure you know if it's a "latched" or "momentary" switch. For a BRZ fog setup, you almost certainly want a latched switch—meaning it stays down when you press it and pops back up when you press it again. If you get a momentary one, your lights will only stay on as long as your finger is holding the button. Not exactly ideal for a midnight canyon run.
Choosing the Right Look
The BRZ interior has a very specific aesthetic. Everything is mostly black with red or white backlighting. If you buy a generic brz fog light switch that glows bright blue, it's going to stick out like a sore thumb at night. It sounds like a nitpicky detail, but once you see that one blue light clashing with your red dash, you won't be able to unsee it.
- Red LED Backlighting: This is the gold standard for Gen 1 (2013-2020) owners. It matches the interior lighting perfectly.
- White LED Backlighting: Better for the newer 2022+ models that have moved toward a cleaner, more modern display.
- OEM Style Icon: Look for a switch that actually has the fog light symbol etched into it. It makes the car look expensive and well-maintained rather than modified on a budget.
Installation Tips for the Weekend Warrior
So, you've got your brz fog light switch in the mail, and you're ready to go. Before you start ripping your dash apart with a flathead screwdriver (please don't do that, you'll scratch the plastic), here are a few things to keep in mind.
First, invest in a plastic trim removal tool. They're like five bucks and will save your interior from looking like a cat used it as a scratching post. To get to the switch panel on the BRZ, you usually have to pop the side cover of the dash first, then reach in and push the blanks out from the back. It's much easier than trying to pry them from the front.
Second, let's talk about the firewall. Getting a wire from the cabin to the engine bay is the part everyone hates. There's a large rubber grommet on the driver's side where the main wire loom goes through. You can carefully poke a hole in a "nipple" on that grommet to feed your trigger wire through. Just make sure you use a bit of silicone or electrical tape to seal it back up so you don't end up with a wet floorboard the next time it rains.
Troubleshooting Common Issues
Sometimes you get everything hooked up, you flip your brz fog light switch, and nothing. It's incredibly frustrating. Before you tear the whole thing out and send it back, check these three things:
- The Ground: 90% of electrical issues in car mods are bad grounds. Make sure your switch is grounded to clean, unpainted metal.
- The Relay: You should never run the full power for fog lights directly through the switch. The switch should trigger a relay, which then pulls power from the battery. If your switch is getting hot, you're doing it wrong.
- Tapped Power: Where is the switch getting its "on" signal? If you tapped into a fuse that only has power when the ignition is on, the lights won't work with the car off. If you tapped into the headlight circuit, they might only work when the low beams are active.
Gen 1 vs. Gen 2 Differences
It's worth noting that the brz fog light switch for a 2015 model isn't necessarily going to be the same as one for a 2023. The interior styling changed quite a bit. The newer cars have a slightly more refined button shape. If you're shopping for parts, always double-check the year. While some Toyota/Subaru parts are interchangeable across decades, the dashboard buttons are often just different enough to be annoying if you buy the wrong one.
Final Thoughts on the Upgrade
At the end of the day, upgrading your brz fog light switch is about more than just seeing better in the rain. It's about completing the car. There's something deeply satisfying about having a cockpit where every button has a purpose. It makes the driving experience feel more "whole."
If you're on the fence, just go for the dash-mounted button. It's a fun Saturday morning project, it doesn't cost much, and it gives you that extra bit of control over your lighting that the factory setup just doesn't allow. Just do yourself a favor and get one that matches the red glow of your tachometer. Your eyes (and your passengers) will thank you when you're cruising at night.
Whether you're hitting a foggy mountain pass or just want to look cool at a local meet, that little switch is your gateway to a better-looking, more functional BRZ. Happy wrenching!