{"product_id":"curt-proportional-trailer-brake-controller-spectrum-dash-mount-knob-triple-axis-accelerometer","title":"CURT Proportional Trailer Brake Controller Spectrum — Dash-Mount Knob, Triple-Axis Accelerometer","description":"\u003cp\u003e\u003cstrong\u003eThe CURT 51170 Spectrum Proportional Trailer Brake Controller is a dash-mounted, rotary-knob proportional controller that delivers smooth, responsive trailer braking using a triple-axis accelerometer while keeping the main module hidden behind the dash.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Spectrum pairs a compact, OEM-style rotary knob with a separate behind-the-dash module to give you accurate proportional braking without cluttering the cabin. Its ten tri-color LEDs and push-button knob make adjustments and diagnostics straightforward, while automated leveling and calibration simplify installation. Designed to work with vehicle-specific CURT quick-plug harnesses, the Spectrum blends modern control with a subtle, factory-like appearance.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Spectrum create smoother stops than a basic time-delayed controller?\u003c\/h3\u003e\n\u003cp\u003eThe controller measures motion across three axes to calculate braking force in real time, applying only what the trailer needs during a stop. This proportional approach mirrors the tow vehicle’s deceleration so the trailer slows in step with the vehicle, reducing jerking and sudden weight transfer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTriple-axis accelerometer senses forward, lateral and vertical motion\u003c\/li\u003e\n  \u003cli\u003eReal-time proportional output adjusts brake power continuously\u003c\/li\u003e\n  \u003cli\u003eManual override button for instant full trailer stop when needed\u003c\/li\u003e\n  \u003cli\u003eTen tri-color LEDs provide visual feedback on brake output and power\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes installation and dash integration simple for this unit?\u003c\/h3\u003e\n\u003cp\u003eThe main electronics module mounts out of sight, while the small rotary knob installs anywhere on the dash for a clean, OE-style finish. CURT supports vehicle-specific quick-plug harnesses that reduce wiring time, and built-in automated leveling and calibration streamline setup so you can be ready to tow faster.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSeparate behind-dash module keeps cabin free of bulky hardware\u003c\/li\u003e\n  \u003cli\u003eDash-mounted rotary knob with push-button fits discreetly where you choose\u003c\/li\u003e\n  \u003cli\u003eCompatible with CURT vehicle-specific quick-plug harnesses\u003c\/li\u003e\n  \u003cli\u003eAutomatic leveling and calibration minimize manual tuning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the knob and LEDs to control or troubleshoot braking?\u003c\/h3\u003e\n\u003cp\u003eTurn the rotary knob to adjust gain and press the integrated button for manual override; the LED array changes color to reflect current status and output. The ten tri-color LEDs give a clear, graded readout of braking intensity and power conditions, helping you fine-tune settings at a glance without guessing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRotary knob adjusts brake gain smoothly and precisely\u003c\/li\u003e\n  \u003cli\u003ePush-button triggers manual override for immediate trailer braking\u003c\/li\u003e\n  \u003cli\u003eThree-color LEDs (red, green, blue) indicate activity, power and output level\u003c\/li\u003e\n  \u003cli\u003eVisual feedback assists in diagnosing connection or power issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the Spectrum adapt to hilly terrain or changing loads?\u003c\/h3\u003e\n\u003cp\u003eYes — the triple-axis accelerometer compensates for incline and decline so brake application remains proportional when going up or down grades. That sensing capability helps maintain balanced stopping performance across varied terrain and different trailer loads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree-axis sensing adjusts output for uphill and downhill braking\u003c\/li\u003e\n  \u003cli\u003eProportional control adapts to changing trailer mass and road conditions\u003c\/li\u003e\n  \u003cli\u003eConsistent brake response reduces stress on tow vehicle and trailer\u003c\/li\u003e\n  \u003cli\u003eManual override remains available regardless of slope or load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CURT 51170 Spectrum suits drivers who tow medium to heavy trailers and want a factory-integrated look with precise, proportional braking. It’s ideal for owners who value a low-profile dash appearance, need simple, tactile control, and prefer fast installation using vehicle-specific harnesses. Choose the Spectrum when you want a modern brake controller that prioritizes smooth stops, clear feedback, and flexible mounting options without adding bulky cabin hardware.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Spectrum require a separate vacuum or brake pedal sensor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, the Spectrum uses its internal triple-axis accelerometer and vehicle wiring; no separate pedal sensor is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install the knob anywhere on my dash?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the small rotary knob mounts in a user-chosen dash location while the main module mounts out of sight.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":48080373219486,"sku":"B07CZTXL8P","price":326.72,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/curt-spectrum-front-knob.jpg?v=1785780733","url":"https:\/\/northtrailauto.ca\/products\/curt-proportional-trailer-brake-controller-spectrum-dash-mount-knob-triple-axis-accelerometer","provider":"North Trail Auto","version":"1.0","type":"link"}