Understanding & Resolving Rapid Blinking After Upgrading to RGB Halo Kits
🚨 What Is Hyperflash?
Hyperflash is when your turn signals blink rapidly—both inside the cabin and on the vehicle exterior—after switching to LED-based lighting. It’s most commonly seen when upgrading to custom DRL boards or LED headlights that draw less power than your factory lights.
This happens because many modern vehicles use electronics that monitor current draw. When it drops (as it does with LEDs), the system assumes something’s wrong—causing fast blinking or “bulb out” warnings.
🙌 What We Do to Prevent Hyperflash
At RGB Halo Kits, we design all our DRL boards and headlight upgrades with this issue in mind. We test our products extensively on real vehicles, and we continuously update our designs to reduce the risk of hyperflash wherever possible.
That said—every vehicle is different, and some factory systems are more sensitive than others. Despite our best efforts, hyperflash can still happen in some setups depending on how your vehicle was built, wired, or programmed.
We understand this can be frustrating, and we’re here to help guide you to a solution.
⚙️ Why Hyperflash Happens with Custom DRL Boards
When you install our multicolor DRL boards or RGB headlights, you're replacing the factory circuit with an upgraded LED system. These systems:
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Draw less power than OEM DRLs
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May no longer signal your vehicle that a bulb is functioning normally
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Can confuse modern Body Control Modules (BCMs), especially in newer or luxury vehicles
This is why hyperflash isn't a product defect—it's your car's built-in safety system reacting to the lower power draw from the new LEDs.
âś… What You Can Do: Solutions That Work
We’ve helped thousands of customers successfully resolve hyperflash using one or more of these methods:
🔌 1. Install Load Resistors
What it does: Simulates the power draw of a halogen bulb.
How to use: Wire in parallel with the turn signal circuit (not the RGB board).
Success rate: Works on many vehicles, especially domestics and Japanese models.
đź›’ Get Load Resistors
⚠️ Resistors can get hot! Always mount them to metal and away from plastic.
🧠2. CAN Bus Decoder Module (For Advanced Systems)
If resistors don’t work, a decoder module can help suppress bulb-out errors and fix hyperflash on sensitive vehicles like BMW, Dodge, Audi, etc.
Great for: Newer cars with shared DRL/turn signal circuits or CAN bus monitoring.
Note: Coming soon to our store—we’re testing for full compatibility.
🔧 3. ECU/BCM Programming
If your ECU is unlocked or you’re working with a professional tuner, they may be able to:
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Disable bulb-out detection
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Correct blink timing
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Permanently eliminate hyperflash errors
Works best for: Lamborghini, Tesla, high-end builds, or custom show cars.
🤝 Our Promise: We’re Here to Help
Hyperflash can be one of the most frustrating parts of a lighting upgrade, but we’ll never leave you hanging. Our team has worked through nearly every scenario—if you’re stuck, just reach out.
We’re happy to:
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Review your install photos
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Recommend the best fix for your vehicle
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Walk you through wiring tips or decoder options
đź“© Info@rgbhalokits.com
🧰 Still Hyperflashing? Try This Checklist
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âś… Are resistors installed on both sides of the turn signal circuit?
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âś… Are they wired in parallel and mounted properly?
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âś… Is your vehicle using a shared DRL/turn circuit?
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âś… Do you have a CAN bus system or bulb monitoring?
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âś… Did you try enabling DRL bypass if supported by your kit?
đź› Fixes by Vehicle Type
| Vehicle Type | Likely Outcome | Suggested Fix |
|---|---|---|
| 2005–2015 Domestic | Usually fixed with resistors | Add 50W Load Resistors |
| 2016–2023 Trucks/SUVs | Mixed results | Resistors + DRL Bypass |
| 2018+ Euro / CAN Bus | May trigger errors | Decoder Module or ECU Tune |
| Exotic / Show Cars | Needs custom support | ECU Programming or Shop Install |
🛍 Shop Hyperflash Solutions
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Decoder Modules – Coming Soon
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Universal solution- coming soon
đź’¬ Final Thoughts
Hyperflash is unfortunately a side effect of modern vehicle electronics, not a flaw in your lighting kit. But we want to make fixing it as simple as possible for you. Our goal is to get your lights working—and looking—exactly how you want.
If you're unsure about any step, don't guess—reach out. We're real car enthusiasts and installers, and we’ve got your back.