LS Tractor MT225S Warning Light Symbols and What They Mean

The LS Tractor MT225S compact tractor features a intuitive instrument cluster with warning lights for critical systems. This guide explains each indicator to help you operate and maintain your tractor safely.

How to read the colors: Red lights demand immediate attention, amber indicates a caution or service need, and green/blue show active functions like lights or PTO.

LS Tractor MT225S Warning Light Symbols

SymbolNameColorWhat it meansWhat to do
Check EngineAMBERIlluminates when the engine control unit detects a fault in the emission or fuel system of your MT225S.Reduce engine load and contact your LS dealer for diagnostic service.
Engine Oil PressureREDLights up when oil pressure drops below safe level, protecting the engine from damage in your MT225S.Immediately stop the engine and check oil level. Do not restart until resolved.
Battery / ChargingREDIndicates the charging system is not maintaining battery voltage on your MT225S.Check alternator belt and connections; if light stays on, have the charging system tested by a technician.
Coolant TemperatureREDWarns that engine coolant is overheating, risking engine failure on your MT225S.Stop engine immediately, let it cool, then check coolant level and radiator for debris.
Glow Plug / PreheatAMBERShows the glow plugs are heating the intake air for cold starts on your MT225S diesel engine.Wait for light to turn off before cranking the engine.
PParking BrakeREDReminds you that the parking brake is engaged on your MT225S.Release parking brake before moving the tractor.
PTOPTO EngagedGREENIlluminates when the power take-off (PTO) is engaged on your MT225S.Do not disengage under load; turn off PTO before servicing.
Differential LockAMBERLights up when the differential lock is engaged to improve traction on your MT225S.Disengage diff lock when turning or on hard surfaces.
High BeamBLUEIndicates the high beam headlights are active on your MT225S.Dim to low beam when approaching other vehicles.
Work LightsGREENShows that the rear work lights are turned on for better visibility on your MT225S.Turn off when not needed to conserve battery.
Seat BeltREDReminds the operator to fasten the seat belt for safety on your MT225S.Fasten seat belt before operating the tractor.
Low FuelAMBERWarns that fuel level is low in the tank of your MT225S.Refuel as soon as possible to avoid running out.
Water in FuelAMBERIndicates water has accumulated in the fuel filter/water separator of your MT225S.Drain the separator bowl immediately to prevent injector damage.
Master Warning (Stop)REDGeneral warning light that accompanies a serious fault requiring immediate attention on your MT225S.Stop the tractor safely and investigate the accompanying warning.
Master CautionAMBERIndicates a non-critical system requires service or attention on your MT225S.Check the display for additional warnings and schedule service.

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

Most Important Warning Lights

Engine Overheating

Common causes

  • Low coolant level
  • Clogged radiator screens
  • Faulty thermostat

What to do

Stop the engine immediately and allow it to cool. Check coolant level and clean radiator fins. If persistent, inspect the water pump and thermostat on your MT225S.

Low Oil Pressure

Common causes

  • Low oil level
  • Oil pump failure
  • Clogged oil filter

What to do

Shut off the engine and check engine oil level using the dipstick. If full, have the oil pressure sensor and pump tested by an LS dealer.

Charging System Failure

Common causes

  • Loose or broken alternator belt
  • Failed alternator
  • Battery terminal corrosion

What to do

Check alternator belt tension and battery connections. If light remains, replace the alternator or battery as needed on your MT225S.

Water in Fuel

Common causes

  • Contaminated fuel
  • Condensation in tank
  • Failed fuel cap seal

What to do

Drain the water separator bowl located on the fuel filter housing. Replace the fuel filter if contamination is severe. Use clean diesel from a trusted source.

Frequently Asked Questions

What does the glow plug light mean on my MT225S?

It means the engine's glow plugs are preheating the combustion chambers for a cold start. Wait until the light turns off before cranking the engine.

Why is my check engine light on?

It indicates a fault in the engine management or emission system. Common causes include a loose fuel cap, bad sensor, or DPF regeneration issue. Have the code read by an LS dealer.

How do I clear the water-in-fuel warning?

Open the drain valve on the fuel filter/water separator and let water drain until clean fuel appears. Then tighten the valve. The light will reset after a few minutes of operation.

What should I do if the master warning light comes on?

Stop the tractor immediately and check the corresponding red warning. It could be low oil pressure, overheating, or charging failure. Do not operate until the issue is resolved.

Can I drive with the PTO light on?

The PTO light is just a reminder that the PTO is engaged. It's safe to drive but avoid engaging the PTO under heavy load. Always disengage PTO before servicing attachments.

Why does the diff lock light stay on?

It stays on as long as the differential lock is engaged. Disengage it by pressing the switch again. Avoid turning sharply with diff lock engaged to prevent drivetrain damage.