Bobcat S205 Warning Light Symbols and What They Mean

The Bobcat S205 instrument cluster monitors key systems to ensure safe and efficient operation. Warning lights alert the operator to immediate issues or upcoming service needs. Understanding these indicators helps prevent downtime and costly repairs.

How to read the colors: Red lights demand immediate shutdown and inspection; amber lights indicate a fault that should be addressed soon; green/blue lights show active systems or normal operation.

Bobcat S205 Warning Light Symbols

SymbolNameColorWhat it meansWhat to do
Master Warning (Stop)REDA critical fault has been detected in the Bobcat S205 that requires immediate engine shutdown to prevent damage.Stop the engine immediately and consult the operator's manual for fault codes.
Master CautionAMBERA non-critical fault exists that may affect performance or longevity of the Bobcat S205.Reduce load and service the machine as soon as possible.
Check Engine (MIL)AMBERThe engine control system has detected a fault in the Bobcat S205's emissions or performance systems.Have the engine diagnosed by a Bobcat dealer.
Engine Oil PressureREDEngine oil pressure in the Bobcat S205 is too low, risking severe engine damage.Stop engine immediately and check oil level.
Battery / ChargingREDThe Bobcat S205's charging system is not functioning properly, causing battery discharge.Check alternator belt and battery connections; service if needed.
Coolant TemperatureREDEngine coolant temperature in the Bobcat S205 has exceeded safe operating range.Stop engine and allow to cool; check coolant level.
ATTransmission TempAMBERTransmission fluid temperature in the Bobcat S205 is high; continued operation may cause damage.Reduce load and allow transmission to cool.
PParking BrakeREDParking brake on the Bobcat S205 is engaged or there is a fault in the brake system.Release parking brake before moving; if light stays, inspect brake system.
Seat BeltREDOperator seat belt in the Bobcat S205 is not fastened.Fasten seat belt before operating.
Glow Plug / PreheatAMBERGlow plugs are active during cold start to aid the Bobcat S205 diesel engine ignition.Wait for light to turn off before starting the engine.
Water in FuelAMBERWater has been detected in the Bobcat S205 fuel system, which can damage injectors.Drain water from fuel filter/water separator immediately.
Low FuelAMBERFuel level in the Bobcat S205 is low and refueling is recommended.Refuel as soon as possible to avoid running out.
High BeamBLUEHigh beam headlights on the Bobcat S205 are turned on.No action required; use only in appropriate conditions.
Hydraulic SystemREDA fault in the Bobcat S205 hydraulic system, such as low oil level or high temperature.Stop machine and check hydraulic oil level and temperature.
Reduced Power (Limp Mode)AMBEREngine power on the Bobcat S205 is limited to prevent damage due to a detected fault.Reduce load and service the machine soon.
Hydraulic OilAMBERHydraulic oil level is low or oil condition needs attention in the Bobcat S205.Check hydraulic oil level and add if needed.
Air FilterAMBEREngine air intake restriction is high on the Bobcat S205, indicating a dirty air filter.Inspect and replace air filter if necessary.
Fuel Filter / Water SeparatorAMBERFuel filter requires service or water has been detected in the Bobcat S205 fuel system.Replace fuel filter and drain water separator.
Service / Hour MeterGREENIndicates that scheduled service is due based on hours of operation on the Bobcat S205.Perform required maintenance as per the service schedule.
Work LightsGREENWork lights on the Bobcat S205 are activated for improved visibility.No action required.
Beacon / Rotating LightGREENThe rotating beacon on the Bobcat S205 is on, indicating the machine is moving.Ensure proper visibility and safety around equipment.
Door OpenREDThe operator cab door of the Bobcat S205 is open or not fully closed.Close and latch the door before operation.

22 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
  • Faulty thermostat
  • Radiator blockage

What to do

Stop the Bobcat S205 immediately and let engine cool. Check coolant level and add if low. If persistent, inspect radiator and thermostat; consult a Bobcat technician.

Hydraulic System Failure

Common causes

  • Low hydraulic oil level
  • Contaminated hydraulic fluid
  • Pump failure

What to do

Shut down the Bobcat S205. Check hydraulic oil level and top up with recommended oil. If oil is contaminated, drain and replace. For pump issues, seek professional service.

Electrical System Malfunction

Common causes

  • Loose battery cables
  • Faulty alternator
  • Blown fuse

What to do

Inspect battery connections on the Bobcat S205 and tighten if loose. Check alternator belt tension and fuses. Charge or replace battery if needed.

Transmission Overheating

Common causes

  • Excessive load
  • Low transmission fluid
  • Blocked cooler

What to do

Reduce load on the Bobcat S205 and allow transmission to cool. Check fluid level and add if low. Clean transmission cooler fins.

Frequently Asked Questions

What should I do if the Master Warning light comes on while operating my Bobcat S205?

Stop the machine immediately. The Master Warning indicates a critical fault that could cause severe damage. Check the display for additional fault codes and refer to the operator's manual.

How often should I change the hydraulic oil on the Bobcat S205?

Bobcat recommends changing the hydraulic oil every 1,000 hours or annually, whichever comes first. However, check your owner's manual for your specific model year.

Can I operate the Bobcat S205 with the Glow Plug light on?

No. Wait for the Glow Plug light to turn off before starting the engine. The glow plugs are preheating the combustion chamber to ensure ignition, especially in cold weather.

What does the Water in Fuel light mean?

It means water has been detected in the fuel system. Water can damage injectors. Drain the fuel filter/water separator immediately to avoid expensive repairs.

Why is the Reduced Power light on?

The engine control system has detected a fault and is limiting power to protect the engine. Common causes include a clogged air filter or fuel system issues. Check and service as needed.

How do I reset the service hour meter on the Bobcat S205?

The service hour meter resets after maintenance is performed. Consult your dealer or operator's manual for the specific reset procedure, as it varies by model.