The Bobcat S595 skid steer loader features a comprehensive instrument cluster designed to keep you informed of machine health and operational status. This guide covers all genuine warning and indicator lights you will encounter on the S595, helping you understand each symbol's meaning and the appropriate response.
Bobcat S595 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | This red warning light illuminates when a serious fault is detected in the S595, such as low engine oil pressure or high coolant temperature, requiring immediate engine shutdown. | Stop the machine immediately, turn off the engine, and consult the operator's manual or contact service. | |
| Master Caution | AMBER | This amber caution light alerts you to a less urgent issue that still requires attention, like a clogged air filter or low fuel level on your S595. | Check the other warning lights and the multi-function display to identify the specific issue; address it at the next opportunity. | |
| Check Engine | AMBER | Illuminates when the engine control system detects a malfunction in the S595's emissions or performance systems, such as a sensor failure or fuel system problem. | Have the engine diagnostics checked by a dealer as soon as possible; you may continue operating with reduced performance if the light is steady. | |
| Engine Oil Pressure | RED | This red light warns of low engine oil pressure in your S595, which can cause severe engine damage if ignored. | Stop the engine immediately, check oil level, and if low, add oil; if it remains on, do not run the engine and contact service. | |
| Battery / Charging | RED | Indicates the S595's alternator is not charging the battery properly, possibly due to a loose belt or faulty alternator. | Check the battery connections and alternator belt; if the light stays on while running, have the charging system inspected. | |
| Coolant Temperature | RED | This red light warns that the engine coolant in your S595 is overheating, which can lead to engine failure. | Stop the engine and let it cool; check coolant level and look for leaks; if the light persists, call for service. | |
| Hydraulic System | AMBER | This amber light indicates an issue with the S595's hydraulic system, such as low hydraulic oil level, filter restriction, or high temperature. | Check the hydraulic oil level and temperature; clean the hydraulic oil cooler; if the light remains, consult a dealer. | |
| Seat Belt | AMBER | Illuminates when the operator seat belt is not fastened on the S595—a reminder to secure it before operating. | Fasten the seat belt; the light will turn off once buckled. | |
| Parking Brake | AMBER | This amber light is on when the parking brake is engaged on the S595; it should be released before driving. | Release the parking brake before moving the machine; the light will extinguish. | |
| Glow Plug / Preheat | AMBER | This amber light indicates the glow plugs are preheating the engine in your S595 for cold start conditions. | Wait for the light to turn off before cranking the engine. | |
| Low Fuel | AMBER | Illuminates when the fuel level in the S595's tank is low, reminding you to refuel to avoid running out during operation. | Refuel the machine as soon as possible to prevent fuel starvation. | |
| High Beam | BLUE | This blue light shows that the high beam headlights are activated on your S595 for better visibility in dark conditions. | No action needed; just an indicator of the light setting. | |
| Air Filter Restriction | AMBER | This amber light alerts you that the engine air filter is becoming clogged in the S595, reducing air flow and performance. | Inspect and replace the air filter element according to the maintenance schedule. | |
| Hydraulic Oil Level | AMBER | Warns of low hydraulic oil level in the S595's reservoir, which can cause hydraulic system damage or poor performance. | Check and add hydraulic fluid to the proper level; inspect for leaks. | |
| Service / Hour Meter | AMBER | This light reminds you that scheduled maintenance for the S595 is due based on engine hours (e.g., oil change, filter replacement). | Perform the required service as indicated in the operator's manual; reset the indicator after maintenance. | |
| Work Lights | GREEN | Illuminates when the auxiliary work lights on the S595 are turned on for improved visibility on the job site. | No action needed; confirms the work lights are active. |
16 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 or oil cooler
- Cooling fan failure
What to do
For the Bobcat S595, stop the engine immediately and let it cool. Check coolant level in the recovery tank, clean any debris from the radiator and oil cooler fins, and inspect the belt-driven cooling fan for damage.
Low Oil Pressure
Common causes
- Low engine oil level
- Oil pump failure
- Clogged oil filter
What to do
On your S595, shut down the engine right away. Wait a moment, then check the dipstick and add oil if needed. If the light stays on after adding oil, have the oil pump and filter inspected by a dealer.
Hydraulic System Failure
Common causes
- Low hydraulic fluid level
- Hydraulic pump failure
- Contaminated or old hydraulic fluid
What to do
Stop operating the S595 and check the hydraulic fluid level in the reservoir. Look for external leaks. If level is fine but light remains, the system may need bleeding or a pump replacement—contact service.
Charging System Failure
Common causes
- Loose or worn alternator belt
- Faulty alternator
- Battery connection issues
What to do
For the S595, check the alternator belt tension and condition. Clean and tighten battery terminals. If the light stays on, take the machine to a dealer to test the alternator output.
Frequently Asked Questions
What does the red 'Master Warning' light mean on my Bobcat S595?
It signals a critical fault that requires immediate engine shutdown. Stop the machine, turn off the engine, and consult the display for the specific fault code or contact your dealer.
Why is my S595's amber 'Check Engine' light on?
The engine control system has detected an issue, such as a sensor malfunction or emission problem. You can continue operating but should have it diagnosed by a dealer soon to avoid reduced performance or damage.
How do I reset the service hour meter light on my Bobcat S595?
After performing the required maintenance, you can reset the indicator by turning the key to 'ON' (without starting) and then pressing and holding the 'Service Reset' button on the display for 3 seconds until the light turns off.
The 'Hydraulic System' amber light came on while using the S595. What should I do?
Check the hydraulic oil level in the reservoir and look for leaks. Also ensure the hydraulic oil cooler is not clogged with debris. If the light persists, avoid heavy use and have the system inspected.
Is it normal for the glow plug light to stay on for a long time on my S595?
In very cold conditions, the glow plugs may preheat for up to 10 seconds. If the light stays on longer or won't go off, there may be a fault with the glow plug relay or controller—consult a dealer.
Can I operate the S595 with the 'Air Filter' light on?
You can, but continued operation will reduce engine power and fuel efficiency. Inspect and replace the air filter element as soon as possible to prevent further restriction and engine wear.