The Bobcat S175 skid steer loader features a simple yet informative instrument cluster. The gauges and indicators help operators monitor engine, hydraulic, and safety systems. Understanding these lights ensures safe and efficient operation.
Bobcat S175 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A serious fault has been detected; the machine should be stopped immediately to prevent damage or injury. | Stop the engine and consult the operator's manual for specific fault codes. | |
| Master Caution | AMBER | A non-critical fault or service reminder has been triggered; the machine can continue operation but should be serviced soon. | Check the display for additional information and schedule maintenance. | |
| Check Engine (MIL) | AMBER | The engine control system has detected a malfunction affecting emissions or performance. | Have the engine diagnostic codes read by a qualified technician. | |
| Engine Oil Pressure | RED | Engine oil pressure has dropped below safe operating level, risking engine damage. | Stop the engine immediately and check oil level; if low, add oil; if light stays on, do not restart. | |
| Battery / Charging | RED | The battery is not being charged properly, possibly due to alternator or wiring fault. | Check alternator belt and connections; if light stays on, service the charging system. | |
| Coolant Temperature | RED | Engine coolant temperature has exceeded the safe limit; continued operation may cause severe damage. | Stop the engine and allow it to cool; check coolant level and for leaks. | |
| Hydraulic System | AMBER | The hydraulic system is operating outside normal parameters, such as high temperature or low oil level. | Reduce load and allow system to cool; check hydraulic oil level and condition. | |
| Parking Brake | RED | The parking brake is engaged; the machine can be operated but brake should be released before driving. | Disengage the parking brake before moving the machine. | |
| Fasten Seat Belt | RED | The operator is not buckled; the machine may have reduced functionality or alarms until belt is fastened. | Fasten your seat belt to continue normal operation. | |
| Glow Plug / Preheat | AMBER | The engine preheat system is active; wait for the light to turn off before starting in cold conditions. | Wait until the light goes out, then start the engine. | |
| Low Fuel | AMBER | The fuel level is low and will soon run out, causing engine shutdown. | Refuel as soon as possible to avoid running out of fuel. | |
| Air Filter | AMBER | The engine air filter is restricted or needs replacement; power may be reduced. | Inspect and replace the air filter element as needed. | |
| Fuel Filter / Water Separator | AMBER | The fuel filter requires service or water has been detected in the fuel system. | Drain water from the separator and replace the fuel filter element. | |
| Water in Fuel | AMBER | Water has accumulated in the fuel system, which can damage the injection pump and injectors. | Drain the fuel water separator and check for contaminated fuel. | |
| Low Oil Level | AMBER | Engine oil level is below the safe operating range. | Check engine oil level and add oil if necessary; if light persists, inspect for leaks. | |
| Work Lights | GREEN | The work lights are turned on and illuminating the work area. | No action needed; indicates lights are active. | |
| High Beam | BLUE | The high-beam headlights are engaged for improved visibility. | No action needed; switch to low beam when other vehicles are nearby. |
17 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 obstruction
- Broken fan belt
What to do
Stop the engine immediately. Allow it to cool, then check coolant level and add if low. Inspect for leaks, debris on radiator, and belt condition. If problem persists, have the cooling system serviced by a Bobcat dealer.
Low Engine Oil Pressure
Common causes
- Low oil level
- Oil pump failure
- Clogged oil filter
- Worn engine bearings
What to do
Stop the engine right away. Check oil level and add oil if needed. If light remains off after restart, but comes back on under load, have the oil pressure and system inspected by a mechanic.
Charging System Failure
Common causes
- Loose or broken alternator belt
- Failed alternator
- Battery cable corrosion
- Blown fuse
What to do
Check alternator belt tension and condition. Inspect battery connections for corrosion. If light stays on after belt adjustment, have the alternator and battery tested at a service center.
Hydraulic System Overheating
Common causes
- Low hydraulic oil level
- Contaminated or degraded oil
- Clogged hydraulic oil cooler
- Excessive load or continuous high-speed operation
What to do
Reduce load and allow system to idle and cool. Check hydraulic oil level and add correct fluid. Clean the oil cooler fins. If temperature continues to rise, have the system checked for internal leaks.
Fuel System Contamination
Common causes
- Water in fuel
- Dirty fuel filter
- Bacterial growth in tank
- Poor quality fuel
What to do
Drain the water separator and replace the fuel filter. If contamination is severe, drain the fuel tank and refill with fresh, clean diesel. Add a fuel biocide if needed and consult a technician.
Frequently Asked Questions
What does a flashing red master warning mean on my S175?
A flashing red master warning indicates a critical fault that requires immediate engine shutdown. Check the LCD display for a fault code and refer to your operator's manual for the specific action.
How do I reset the service hour indicator after an oil change?
To reset the service reminder, turn the key to the ON position, then press and hold the reset button on the instrument panel for about 5 seconds until the light turns off. Consult your manual for exact procedure.
Why is my hydraulic warning light on even after topping off fluid?
If the amber hydraulic light stays on, there may be a sensor issue, a clogged filter, or the oil is overheating. Check the hydraulic oil cooler for debris and ensure the oil is not foamy. Have the system pressure tested by a dealer if the problem persists.
Can I operate the S175 with the air filter warning light on?
It is not recommended. The amber air filter light indicates a restriction that can reduce engine power and increase fuel consumption. Replace the air filter element as soon as possible to prevent further issues.
What should I do if the battery light comes on while operating?
The battery light means the charging system is not working. Continue operating only if necessary, but have the alternator belt and connections checked immediately. A dead battery can leave you stranded.
How do I know if the glow plug light is working correctly?
When you turn the key to the 'preheat' position, the amber glow plug light should come on for a few seconds and then turn off (longer in cold weather). If it never comes on or stays on indefinitely, have the glow plug relay and plugs inspected.