About This

• April 2026 Updated Low-Power Version: Current model upgraded with low-power technology for daily plug-in use without noticeable battery drain. Some packages may still display older printed notices, such as “Do not leave the device plugged in if the vehicle is not driven daily or will not be used for two weeks.” This message is from previous packaging versions before the low-power upgrade
• Capability When You Need It Most: Simply plug it in and go. Whether you’re towing a load, merging onto the highway, or climbing a steep grade, this module delivers reliable response on demand. It will not affect your vehicle’s system; removing it will restore factory settings
• Engine Check at Startup: If the vehicle has a problem, the Engine Check red light on the device will illuminate, helping you catch small issues before they become costly repairs
• Fits Popular Models Including: Compatible with 5.3L Silverado, GMC Sierra, Yukon, Cadillac Escalade, and more. Most GM V6 & V8 vehicles. Please verify your exact model and year in the full fitment list below
• Ultra-Low 0.27mA Battery Drain: Engineered with advanced power-saving technology. Connected 24/7, it uses so little power that a standard 60Ah car battery could last over 25 years without going flat. With a new 60Ah car battery and no other drain, our product draws only 0.27mA in sleep mode. Do the math: (1). Convert 0.27 mA to amps: 0.27 ÷ 1000 = 0.00027 amps (2). Divide battery capacity by current: 60 amp‑hours ÷ 0.00027 amps = 222,222 hours (3). Convert hours to days: 222,222 hours ÷ 24 = 9,259 days (4). Convert days to years: 9,259 days ÷ 365 = about 25 years. So if nothing else is using your battery, our product alone would take roughly 25 years to drain it in sleep mode
• Built for the Engine Bay’s Heat: Designed to automotive-grade standards, it withstands the extreme temperatures and vibrations under your hood. This isn't a flimsy adapter—it's built to be a permanent, reliable part of your vehicle's ecosystem
• Verify Fitment Before Ordering: To ensure a perfect fit, please note: this unit is NOT compatible with Honda Pilot, vehicles equipped with 10-speed automatic transmissions, C8 Corvette models, the 2022+ refreshed Silverado/Sierra, or any 2023, 2024, 2025,2026 model year vehicles. Always verify your model year before purchasing

Overview

• Brand : ELFREE
• Power Source : obd 2
• Operating System : OBD2
• Automotive Fit Type : Vehicle Specific Fit
• Number of Items : 1