Understanding the Ram 2500-3500’s dashboard warning lights is crucial for safe operation and preventing mechanical failures. These indicators alert drivers to critical system faults, maintenance needs, or active features, enabling timely action to avoid accidents or costly repairs.
Quick Navigation
Red Warning Lights (Stop Immediately)
Brake System Alert
Indicates low brake fluid or hydraulic failure. Park immediately and contact a Ram service center.
Engine Oil Pressure Low
Critically low oil pressure. Stop the engine, check oil level, and seek professional help.
Engine Overheating
Coolant temperature exceeds safe limits. Turn off the engine immediately and let it cool.
Charging System Warning
Battery not charging. Stop driving to prevent stalling and electrical damage.
Airbag System Error (SRS)
Fault detected in airbags or seatbelt tensioners. Requires immediate professional diagnosis.
Security System Alert
Immobilizer or anti-theft system malfunction. Restart the vehicle; if persistent, seek help.
Power Steering Failure
Loss of power steering assistance. Restart the engine; if unresolved, avoid driving.
Transmission Overheat
Excessive transmission temperature. Pull over, let it cool, and check fluid levels.
Door Ajar
Door or trunk not fully closed. Secure before driving to prevent accidents.
Bonnet Open
Hood improperly latched. Stop and close securely to avoid hazards.
Tailgate Open
Trunk lid ajar. Secure immediately to maintain vehicle stability.
Seatbelt Reminder
Driver or passenger seatbelt unfastened. Secure before accelerating.
Coolant Level Low
Insufficient coolant. Refill and inspect for leaks to prevent engine damage.
Collision Risk Warning
Flashes when potential collision detected (e.g., forward alert). Adjust driving immediately.
Yellow/Amber Warning Lights (Action Required Soon)
Low Tire Pressure
Under-inflated tires. Adjust pressure to recommended PSI and inspect for punctures.
ABS Fault
Anti-lock braking system malfunction. Drive cautiously and prioritize brake inspection.
ESP/VSC Fault
Electronic Stability Program issue. Avoid sharp maneuvers and schedule service.
Service Reminder
Routine maintenance due. Reset after oil change or inspection.
Low Washer Fluid
Windshield washer fluid low. Refill reservoir for clear visibility.
Fuel Cap Loose
Loose or missing fuel cap. Tighten or replace to prevent fuel evaporation.
Bulb Failure
Exterior light (e.g., brake, turn signal) malfunction. Replace promptly.
Adaptive Headlight Fault
Automatic beam adjustment issue. Use manual control until repaired.
Lane Keeping Aid Off
Disabled due to undetected lane markers. Enable manually if safe.
Emissions Control Issue
Exhaust system fault. Schedule diagnostics to prevent performance loss.
DPF Regen Needed
Diesel particulate filter partially blocked. Initiate regeneration or drive at highway speeds.
Green Warning Lights (Information Only)
Cruise Control Active
Speed set and maintained. Deactivate via brake pedal or steering controls.
High Beams On
High beam headlights active. Switch to low beams in traffic.
Front Fog Lights
Enabled for low-visibility conditions. Turn off when not needed.
Eco Mode
Fuel-efficient driving activated. Acceleration may feel less responsive.
Rain Sensor Active
Automatic wipers enabled. Adjust sensitivity via steering controls.
Turn Signal Active
Indicator blinking for turns or lane changes. Check for rapid blinking (bulb issue).
Auto Hold Active
Vehicle remains stationary on slopes without brake pedal input.
Start/Stop Active
Engine stops at idle to save fuel. Restarts when accelerator is pressed.
Gear Shift Indicator
Suggests optimal gear for fuel efficiency. Follow prompts if desired.
Daytime Running Lights
Lights automatically on for daytime visibility. No action needed.
Parking Lights On
Parking lights illuminated. Turn off to conserve battery.
Information Message
Generic alert paired with detailed text on the driver display. Check for specifics.
