Doosan Forklift Warning Lights and Symbols: Complete Guide

The Doosan Forklift is a robust industrial forklift designed for demanding warehouse and yard operations. Its instrument cluster delivers clear, actionable alerts tailored to the unique needs of forklift operators, ensuring both safety and optimal machine performance.

How to read the colors: Red lights on the Doosan Forklift dash signal immediate hazards or conditions requiring a stop, while amber lights indicate caution or maintenance issues that need attention soon. Green and blue lights typically show active systems or normal operation.

Doosan Forklift forklift Warning Light Symbols

SymbolNameColorWhat it meansWhat to do
Master Warning (Stop)REDA critical systems fault has been detected on the Doosan Forklift, requiring an immediate halt to prevent damage or safety risk.Safely stop the forklift and contact maintenance right away.
Master CautionAMBERA non-critical issue has been found on your Doosan Forklift; operation can continue but should be checked soon.Review other warning lights and schedule maintenance promptly.
Check Engine (MIL)AMBERThe engine management system on the Doosan Forklift has logged a fault, possibly affecting performance or emissions.Continue with caution and arrange for diagnostic service.
Engine Oil PressureREDThe Doosan Forklift's engine oil pressure is dangerously low, risking engine damage.Shut down the engine immediately and check oil level before restarting.
Battery / ChargingREDThe charging system is malfunctioning, and your Doosan Forklift battery is not being recharged.Stop operation and inspect the alternator, belts, and battery connections.
Coolant TemperatureREDThe engine coolant temperature is excessively high on your Doosan Forklift.Stop the forklift, let the engine cool, and inspect coolant level.
ATTransmission TempREDTransmission temperature is above safe limits, risking damage to the Doosan Forklift transmission.Cease operation and allow the transmission to cool down.
Brake SystemREDA fault in the brake system has been detected, affecting stopping ability.Do not operate the forklift until brakes are inspected and repaired.
ABSABSAMBERThe ABS system on your Doosan Forklift is not working; normal brakes remain functional.Drive cautiously and arrange ABS service soon.
PParking BrakeREDThe parking brake is engaged on your Doosan Forklift.Release the parking brake before driving.
Seat BeltREDThe operator's seat belt is not fastened, which is a critical safety requirement.Buckle the seat belt before operating the forklift.
Glow Plug / PreheatAMBERThe Doosan Forklift's glow plugs are preheating for a cold engine start.Wait for the light to turn off before starting the engine.
DPF / RegenerationAMBERThe diesel particulate filter is regenerating to clean itself.Keep the engine running and avoid shutting down until the light turns off.
DEF / AdBlueAMBERDEF (AdBlue) level is low, which can limit engine performance if not refilled.Refill DEF tank at the next opportunity.
Water in FuelAMBERWater contamination has been detected in the Doosan Forklift's fuel system.Drain the water separator as soon as possible.
Low FuelAMBERThe fuel level is low and the Doosan Forklift will soon require refueling.Plan to refuel at the next available chance.
High BeamBLUEThe forklift's high beam headlights are switched on.Switch off high beams if not needed.
Hydraulic SystemAMBERA hydraulic system issue has been detected, possibly affecting lifting or steering.Inspect hydraulic fluid level and system for leaks.
Reduced Power (Limp Mode)AMBERThe Doosan Forklift has entered reduced power mode due to a detected fault.Limit use and schedule immediate diagnostic service.
Hydraulic OilAMBERHydraulic oil level or pressure is below recommended levels.Check and top up hydraulic oil as needed.
Engine Oil TemperatureREDEngine oil temperature is excessively high, risking engine wear.Stop the forklift and allow the engine to cool.
Air FilterAMBERThe air filter is clogged, reducing engine efficiency.Inspect and replace the air filter soon.
Fuel Filter / Water SeparatorAMBERThe fuel filter is restricted or water separator needs draining.Service the fuel filter and drain water if present.
Service / Hour MeterAMBERScheduled service is due based on operating hours.Arrange for routine maintenance as indicated.
Work LightsGREENThe Doosan Forklift's work lights are switched on for better visibility.Turn off work lights when not needed.
Beacon / Rotating LightAMBERThe safety beacon is active, signaling forklift operation in the area.Ensure beacon is functioning in busy zones.
Overload / CapacityREDThe load exceeds the Doosan Forklift's rated capacity.Lower the load immediately to avoid tipping.
MINLow Oil LevelREDEngine oil level is critically low, risking damage.Stop and add oil before further use.
Brake Fluid LevelAMBERBrake fluid is low, which can impair braking performance.Top up brake fluid and check for leaks.
Door OpenREDA cab or access door is open on the Doosan Forklift.Close all doors securely before operation.

30 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.

Most Important Warning Lights

Engine Oil Pressure

Common causes

  • Low engine oil level
  • Oil pump failure
  • Blocked oil filter

What to do

Immediately stop the Doosan Forklift, check oil level, and do not restart until the issue is resolved by maintenance.

Coolant Temperature

Common causes

  • Low coolant level
  • Faulty thermostat
  • Radiator blockage

What to do

Turn off the engine, allow it to cool, and inspect coolant system for leaks or blockages before resuming use.

Brake System

Common causes

  • Brake fluid leak
  • Worn brake pads
  • Master cylinder failure

What to do

Do not operate the forklift until the brake system has been inspected and repaired by a qualified technician.

Overload / Capacity

Common causes

  • Attempting to lift a load above rated capacity
  • Incorrect load distribution
  • Malfunctioning load sensor

What to do

Lower the load immediately and verify the weight is within the Doosan Forklift's specifications before proceeding.

Battery / Charging

Common causes

  • Alternator failure
  • Loose or corroded battery terminals
  • Broken drive belt

What to do

Inspect the battery and charging system; do not operate if the battery is not charging properly to avoid unexpected shutdown.

Frequently Asked Questions

What should I do if the DPF regeneration light stays on?

Allow the Doosan Forklift to complete its regeneration cycle without shutting off the engine; if the light stays on after, consult service.

Why does the hydraulic system light come on during operation?

This usually indicates low hydraulic fluid or a possible leak; check fluid levels and inspect for visible leaks.

Can I operate the forklift with the ABS warning light on?

You can operate the forklift, but braking performance may be reduced; schedule ABS service as soon as possible.

How often should I check the engine oil and coolant levels?

For Doosan Forklifts, check oil and coolant levels daily before starting your shift.

What does it mean if the overload light comes on with no load?

This could indicate a malfunctioning load sensor; have the system inspected by a technician.