Understanding Volvo Trucks’ dashboard warning lights is critical for driver safety and vehicle longevity. These indicators provide real-time alerts about mechanical issues, system statuses, and urgent faults, helping prevent accidents and costly repairs through prompt action.
Quick Navigation
Red Warning Lights (Stop Immediately)
Brake System Alert
Indicates brake fluid loss or hydraulic failure. Park safely and contact a Volvo service center immediately.
Engine Oil Pressure Low
Low oil pressure detected. Stop the engine, check oil level, and top up if needed. If normal, seek professional help.
Engine Overheating
Coolant temperature exceeds safe limits. Stop immediately, turn off the engine, and allow cooling before inspection.
Parking Brake Malfunction
Flashing light signals a parking brake fault. Read the driver display message and schedule repairs.
Electrical System Fault
Critical charging system issue. Avoid driving and contact a Volvo workshop.
Collision Risk Warning
Flashes when detecting potential collisions. Adjust driving immediately.
Seatbelt Not Fastened
Alerts unrestrained occupants. Secure seatbelts before driving.
Airbag System Error
Fault in airbag systems. Requires immediate professional diagnosis.
ABS Fault
Anti-lock braking system malfunction. Drive cautiously and inspect brakes.
Power Steering Failure
Loss of power steering. Stop and restart the engine. If persistent, seek assistance.
Transmission Overheat
Excessive transmission temperature. Pull over, cool the system, and check fluid levels.
Coolant Level Low
Insufficient coolant. Refill and inspect for leaks or engine damage.
DPF Full (Critical)
Severely blocked diesel particulate filter. Schedule forced regeneration or cleaning.
Yellow/Amber Warning Lights (Action Required Soon)
Headlight System Fault
Bulb failure or electrical issue. Replace bulbs or inspect wiring soon.
Emissions Control Issue
Exhaust system fault. Schedule diagnostics to prevent performance loss.
Tire Pressure Low
Under-inflated tires. Adjust pressure to recommended levels.
Service Reminder
Routine maintenance due. Reset after servicing.
Adaptive Headlight Fault
Automatic beam adjustment malfunction. Manual control remains available.
Traction Control Off
System deactivated. Reactivate for stability on slippery surfaces.
Lane Keeping Aid Off
Disabled or undetected lane markers. Clean sensors or enable manually.
ESP Fault
Electronic Stability Program issue. Avoid sharp maneuvers.
Glow Plug Active
Glow plugs heating (diesel engines). Wait before starting.
Door Ajar
Cab or trailer door open. Secure to prevent accidents.
Rear Fog Light On
Rear fog lights active. Turn off when visibility improves.
Information Message
Generic alert. Check driver display for details.
Bulb Failure
Exterior light malfunction. Replace promptly.
Fuel Cap Loose
Loose or missing cap. Tighten or replace to prevent evaporation.
Green Warning Lights (Information Only)
Cruise Control Active
Speed maintained. Deactivate via brake or controls.
Parking Lights On
Parking lights illuminated. Turn off when not needed.
High Beams On
High beams active. Switch to low beams in traffic.
Front Fog Lights
Enabled for low visibility. Use only when necessary.
Preconditioning Active
Cab temperature pre-setting. Turns off automatically.
Rain Sensor Active
Automatic wipers enabled. Adjust sensitivity if needed.
Eco Mode
Fuel-efficient driving mode. May reduce acceleration response.
Turn Signal Active
Indicator blinking. Check for rapid blinking (bulb failure).
Auto Hold Active
Stays stationary on slopes without brake input.
Start/Stop Active
Engine stops at idle to save fuel.
Gear Shift Indicator
Suggests optimal gear for efficiency. Follow prompts if desired.
