The Bobcat S185 skid steer loader uses a multi-level warning system to alert operators to machine status. Key indicators include red stop lights for immediate shutdown and amber caution lights for preventive action, while green/blue lights indicate active systems.
Bobcat Tractor S185 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | This red stop light indicates a critical engine or hydraulic fault on your Bobcat S185 that requires immediate shutdown to prevent damage. | Stop the machine immediately, engage the parking brake, and consult the service manual. | |
| Master Caution | AMBER | The amber master caution alerts you to a non-critical system issue that should be checked soon on your S185. | Reduce load and check the instrument panel for additional diagnostic codes. | |
| Check Engine (MIL) | AMBER | This amber light signals an engine malfunction in your Bobcat S185 that may affect emissions or performance. | Schedule service soon and avoid prolonged operation under heavy load. | |
| Engine Oil Pressure | RED | Low engine oil pressure detected in your S185; continued operation can cause severe engine damage. | Stop the engine immediately and check oil level and pressure switch. | |
| Battery / Charging | RED | The charging system on your Bobcat S185 is not functioning properly, risking battery drain and electrical failure. | Check alternator belt, connections, and battery voltage; service as needed. | |
| Coolant Temperature | RED | Engine coolant temperature is too high on your S185; overheating can cause engine seizure. | Stop the machine, allow to cool, check coolant level and radiator for blockages. | |
| Transmission Temp | AMBER | Hydrostatic transmission fluid temperature is high on your Bobcat S185, indicating excessive load or low fluid. | Reduce load or speed; if light persists, check transmission fluid level and cooler. | |
| Hydraulic System | AMBER | A hydraulic system fault has been detected on your S185, such as low fluid or filter restriction. | Check hydraulic fluid level and filter; if light stays on, inspect for leaks. | |
| Low Fuel | AMBER | Fuel level is low in your Bobcat S185, risking air in the fuel system if run empty. | Refuel as soon as possible to prevent engine stalling. | |
| Seat Belt | RED | The seat belt is not fastened on your S185; the machine may not start or will warn while moving. | Fasten seat belt immediately before operating. | |
| Parking Brake | RED | Parking brake is engaged on your Bobcat S185; release before driving to avoid driveline damage. | Release parking brake before moving the machine. | |
| Glow Plug / Preheat | AMBER | The glow plugs are preheating on your diesel S185; wait until the light goes out before starting. | Do not attempt to start until the light turns off. | |
| High Beam | BLUE | High beam headlights are on for your Bobcat S185, improving visibility in dark conditions. | Use low beam when other vehicles are present. | |
| Work Lights | GREEN | The auxiliary work lights on your S185 are turned on for better illumination at the jobsite. | Turn off when not needed to save battery. | |
| Beacon / Rotating Light | GREEN | The warning beacon on your Bobcat S185 is active, indicating the machine is operational for safety. | Ensure beacon is working; turn off when machine is parked. | |
| Cold Coolant | BLUE | Engine coolant is cold on your S185; allow engine to warm up before full load operation. | Idle the engine until normal operating temperature is reached. | |
| Air Filter | AMBER | Engine air filter restriction is high on your Bobcat S185, reducing performance and fuel economy. | Clean or replace the air filter element. | |
| Service / Hour Meter | AMBER | Scheduled maintenance interval has been reached on your S185; service is due soon. | Perform required maintenance per operator's manual. |
18 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Overheat
Common causes
- Low coolant level
- Clogged radiator fins
- Faulty cooling fan
What to do
On your Bobcat S185, stop the engine immediately, allow it to cool, then clean the radiator and check coolant level; if problem persists, inspect the fan drive and thermostat.
Hydraulic System Failure
Common causes
- Low hydraulic fluid
- Blocked hydraulic filter
- Internal pump wear
What to do
Check hydraulic fluid level and top off with recommended oil; replace the hydraulic filter on your S185 and inspect for leaks; if still faulty, have the pump tested.
Electrical System Fault
Common causes
- Loose battery connections
- Failed alternator
- Blown fuse
What to do
For your Bobcat S185, clean and tighten battery terminals, test alternator output, and check and replace any blown fuses in the fuse box.
Transmission Overheating
Common causes
- Low transmission fluid
- Excessive load
- Blocked transmission cooler
What to do
Reduce load and allow the transmission to cool on your S185; check fluid level and add if low, then clean the transmission cooler fins.
Engine Starting Failure
Common causes
- Dead battery
- Glow plug malfunction
- Fuel system air
What to do
Jump-start or charge the battery on your S185; if glow plug light fails, replace glow plugs; bleed fuel system to remove air if necessary.
Frequently Asked Questions
What does the red master warning light mean on my Bobcat S185?
The red stop light indicates a serious fault that requires immediate machine shutdown to avoid damage. Check the display for codes and contact your dealer.
Why is my Bobcat S185 not starting?
Common causes include a dead battery, faulty glow plugs (if diesel), or a safety interlock (e.g., seat belt not fastened). Check battery voltage and ensure the seat belt is buckled.
How often should I change the hydraulic filter on my S185?
Bobcat recommends changing the hydraulic filter every 500 hours or annually, whichever comes first. Refer to your operator's manual for specific intervals.
Can I drive my Bobcat S185 with the amber caution light on?
You may continue operation with reduced load, but you should diagnose the issue as soon as possible. The amber light indicates a non-critical problem that can worsen.
What should I do if the transmission temperature light comes on?
Reduce engine speed and load to let the transmission cool. Check fluid level and cooler cleanliness. If the light stays on, stop and inspect.
How do I reset the service hour meter on my Bobcat S185?
The hour meter is a service reminder and cannot be reset by the operator. After performing maintenance, take the machine to a dealer to clear the light.