How to Keep RAM Tow Mirror Lights On: 1 Minute to Ensure Your RAM Tow Mirrors Shine BrightSarah ThompsonSep 09, 2025Table of ContentsTips 1:FAQTable of ContentsTips 1FAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeThe RAM Tow Mirror is a popular upgrade for truck owners seeking better visibility and a bolder look. A common question among enthusiasts is how to keep the tow mirror lights on continuously, either for style, safety, or additional illumination when parked or driving. Let’s explore a step-by-step solution, grounded in verified electrical concepts and best practices to ensure both utility and longevity for your vehicle.Understanding RAM Tow Mirror LightsTow mirror lights on RAM trucks typically serve as turn signals, puddle lights, or marker lights—activated only under specific conditions. Keeping them on requires careful modification, since factory systems are designed to conserve power and maintain compliance with vehicle safety regulations.Step-by-Step Instructions for Continuous LightingIdentify Your Mirror Light Type: Check if your RAM tow mirrors use LED or halogen bulbs, and which function (turn, marker, puddle) you wish to keep on.Access the Wiring Harness: Remove the interior door panel to access the mirror’s wiring harness. Use vehicle wiring diagrams for your RAM model year to identify the correct wires.Install a Relay or Bypass: For continuous power, you’ll need to route a 12V ignition-fed or accessory circuit through a relay to the mirror lights. This setup keeps lights on when the vehicle is running but prevents battery drain when off.Use a Dedicated Switch (Optional): Add a switch inside the cab for manual control of mirror lights. This gives you flexibility to turn them on or off regardless of ignition status.Proper Grounding and Fusing: Ground the wires securely and add an inline fuse for safety to prevent electrical shorts or damage.Test Thoroughly: Double-check connections, insulation, and functionality before reassembling door panels.From a designer’s perspective, integrating auxiliary lighting seamlessly is all about enhancing your truck’s usability and esthetics. If you’re planning further modifications or want to visualize lighting effects on your vehicle or garage environment, using a dedicated room planner tool allows you to experiment with lighting layouts and room setups in 3D for more informed decisions—and a professional finish.Tips 1:When modifying your truck’s electrical systems, always refer to model-specific wiring diagrams and, if uncertain, consult a certified automotive electrician to avoid damage. Pay close attention to moisture protection and wire routing inside doors to prevent future issues.FAQQ: Will keeping RAM tow mirror lights on drain my battery?A: If wired to stay on when the vehicle is off, Yes. That’s why it’s best to route power through an ignition-fed source or a switch, so the lights are only active when needed.Q: Is this modification street legal?A: Laws vary by state and country. Marker and accent lights are often allowed, but continuous bright lights may not be. Check your local vehicle lighting regulations.Q: Can I do this without cutting wires?A: Some aftermarket kits use plug-and-play adapters for less invasive installation, but many options still require tapping into factory wiring.Q: Which mirror light functions can I keep on?A: Marker and puddle lights are often modded to stay on. Turn signals should only flash for signaling, not continuous operation.Q: Why should I use a relay and fuse?A: A relay allows safe high-current switching, while a fuse protects against accidental shorts—both crucial for long-term reliability and safety.Home Design for FreePlease check with customer service before testing new feature.