The John Deere 5100E skid steer loader features a straightforward instrument cluster designed for durability and ease of use. Common indicator lights include engine, hydraulic, and transmission warnings to help you maintain peak performance.
John Deere 5100E Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | Indicates a critical engine or hydraulic failure on the 5100E that demands an immediate shutdown to prevent damage. | Stop the engine and consult the operator's manual for specific fault codes. | |
| Master Caution | AMBER | Alerts the operator to a system problem that does not require an immediate stop but should be addressed soon on the 5100E. | Check the display for additional warning messages and schedule service. | |
| Check Engine (MIL) | AMBER | Signals an emission or engine control issue specific to the 5100E's diesel engine that may affect performance. | Have the engine diagnosed by a dealer to prevent further issues. | |
| Engine Oil Pressure | RED | Indicates low oil pressure in the 5100E's engine, which can lead to severe damage if ignored. | Shut down immediately and check oil level; top off if low, otherwise seek service. | |
| Battery / Charging | RED | Warns that the 5100E's charging system is failing, typically due to a faulty alternator or belt. | Check battery connections and alternator belt; replace if necessary. | |
| Coolant Temperature | RED | Shows the 5100E's engine coolant is overheating, possibly due to low coolant or a clogged radiator. | Stop the engine, let it cool, then check coolant level and radiator fins. | |
| Transmission Temp | AMBER | Indicates high transmission fluid temperature in the 5100E, which can reduce component life if not addressed. | Reduce load and allow transmission to cool; check fluid level and cooler for blockages. | |
| Parking Brake | AMBER | Reminds the operator that the parking brake is engaged on the 5100E, which must be released before moving. | Release the parking brake before driving. | |
| Low Fuel | AMBER | Indicates that the 5100E's fuel level is low, requiring refueling soon to avoid running out. | Refuel the machine as soon as possible. | |
| Glow Plug / Preheat | AMBER | Illuminates during the preheat cycle on the 5100E's diesel engine to aid cold starting. | Wait for the light to turn off before cranking the engine. | |
| Hydraulic System | RED | Indicates a problem with the 5100E's hydraulic system, such as low fluid or a failed pump, which can stop loader operation. | Stop the machine and check hydraulic fluid level and filter; consult a technician. | |
| Fasten Seat Belt | RED | Warns that the operator's seat belt is not fastened on the 5100E; the machine may not start or operate without it. | Fasten the seat belt to enable machine operation. | |
| Work Lights | GREEN | Confirms that the work lights are activated on the 5100E for improved visibility in low-light conditions. | If not needed, switch off to save battery. | |
| Beacon / Rotating Light | GREEN | Indicates the amber rotating beacon is operating on the 5100E to warn nearby personnel. | Leave on when operating around others; turn off when not needed. | |
| Service / Hour Meter | AMBER | Alerts that the 5100E is due for routine maintenance based on operating hours. | Perform scheduled maintenance as outlined in the operator's manual. |
15 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
- Faulty cooling fan
What to do
Stop the 5100E immediately, let the engine cool, then check coolant level and radiator debris. If recurring, have the cooling system inspected by a John Deere dealer.
Hydraulic System Failure
Common causes
- Low hydraulic oil
- Contaminated oil
- Failed pump or filter
What to do
Shut down the 5100E, check hydraulic oil level and condition, and replace filters if needed. For persistent issues, service the hydraulic system at an authorized dealer.
Transmission Overheating
Common causes
- Overloading
- Low transmission fluid
- Blocked cooler
What to do
Reduce the load on the 5100E and allow the transmission to cool. Check fluid level and clean the cooler fins to restore proper operation.
Low Engine Oil Pressure
Common causes
- Low oil level
- Oil leak
- Worn pump or bearings
What to do
Stop the engine immediately on the 5100E, check oil level, and inspect for leaks. If oil is sufficient but light remains, do not restart; call for service.
Battery/Charging System Alert
Common causes
- Loose or corroded battery cables
- Failed alternator
- Worn belt
What to do
Check battery connections on the 5100E for tightness and corrosion. Test the alternator output and replace the belt or alternator if necessary.
Frequently Asked Questions
What does the red stop light mean on my 5100E?
The red master warning light indicates a critical fault requiring immediate engine shutdown. Check the display for the specific code and refer to your 5100E manual.
Why won't my 5100E start even with the key on?
The seat belt must be fastened and the parking brake disengaged. Also ensure the glow plug light has gone out before cranking.
How often should I service the hydraulic system on a 5100E?
John Deere recommends changing hydraulic oil and filter every 500 hours or annually, but refer to your 5100E's hour meter and operator's manual for exact intervals.
The transmission temperature light came on briefly. Is it safe to keep working?
If the light goes out after reducing load, you can continue but monitor closely. If it stays on, stop and let the transmission cool, then check fluid level.
What should I do if the check engine light appears on my 5100E?
The amber check engine light indicates an engine or emissions issue. Schedule a diagnostic at your John Deere dealer to prevent performance loss.
How can I reset the service hour meter on my 5100E?
The service indicator resets after your dealer performs maintenance. You cannot manually reset it; follow the maintenance schedule as per the owner's manual.