Today’s tractor dashboards are complicated things, and yours might have dozens of lights and symbols. Some, like the brake warning light, are familiar and easily recognized. Others may be completely unfamiliar. When a light comes on, it’s important to know how to react. Here are the New Holland dash light symbols and what they mean. This information comes from the New Holland Operator’s Manual for a large tractor.

new holland diesel tractor dash diagram

New Holland Tractor Controls, Instruments, Operation Indicator, and Warning Lights

Colored indicator lights provide operating information or give warning of system malfunction. Warning lights may be accompanied by an audible sound.

Indicator and Warning Lights

NOTE: All indicator and warning lights will light up for a second when you turn the key. This is a diagnostic feature.

  1. Not used.
  2. Fast Steer – Comes on when fast steer function is activated.
  3. Differential lock – Comes on when the differential lock is engaged.
  4. Four wheel drive – Comes on  when front wheel drive is engaged.
  5. Trailer turn signal – Flashes with tractor/trailer turn signals when a second trailer is attached.
  6. Trailer turn signal – Flashes with tractor/trailer turn signals when a trailer is attached
  7. Parking lights – Comes on when the tractor parking lights are on.
  8. Headlight high beam – Comes on when the tractor lights are on high beam.
  9. Red Stop light – If Stop light comes on stop the tractor immediately and investigate the cause. A warning symbol will appear in the Dot Matrix Display to confirm the location of the fault.
  10. Not used.
  11. Amber Warning light – This light advises caution. It will be accompanied by a warning symbol in the Dot Matrix Display. Stop the tractor and investigate the cause.
  12. Direct drive indicator transmission only – Indicates transmission is in direct drive.
  13. Parking brake – Light will flash when the key-start switch is on and the parking brake is engaged. If the key-start switch is turned off and the parking brake not applied, or the operator leaves the seat without applying the handbrake, a warning buzzer will sound for approximately 10 seconds or until the handbrake is applied.
  14. Trailer brake pressure (Italy only) – Light will illuminate to indicate that hydraulic oil pressure to the trailer brake circuit is low. Stop the tractor and investigate the cause.
  15. Brake pedals not latched – Light comes on to show when pedal latch is unlocked (Japan only).
  16. Engine oil pressure low – Steady light accompanied by the Red Stop light indicates low engine oil pressure. Stop the engine and investigate the cause.
  17. Creeper gears – Light comes on when creeper gears are engaged.
  18. Auto P.T.O. function – The light comes on when the Auto P.T.O. function is enabled. Each time the implement is raised with Auto P.T.O.activated, the light will flash. When the implement is lowered into work the light will stop flashing and become steady.
  19. Fuel level low – Light will come on when the tractor requires re-fuelling.
  20. Right turn indicator – Flashes with tractor right-hand turn signal. Intermittent alarm will sound if indicator is not cancelled after 20 seconds (tractor moving) or 5 minutes (tractor Stationary)
  21. Not used.
  22. Left turn indicator – Flashes with tractor left-hand turn signal. Intermittent alarm will sound if indicator is not cancelled after 20 seconds (5 minutes with tractor stationary).
  23. Not used.
  24. Cold start device – Light will illuminate when the grid heater is activated using the key-start switch.
  25. Alternator – Light comes on steadily when the alternator is not charging the battery

New Holland Dot Matrix Warning Symbols

Symbol DisplayAlarm LevelIssueAction
 engine overheatedFlashingCriticalEngine overheated. The RED warning light will also come on.Each of these symbols advise of an issue critical to tractor operation.

When they start flashing, stop the tractor as soon as possible to investigate the cause.

If you can’t easily fix the problem by adding fluids, bring the tractor in for service immediately.

 engine oil low pressureFlashingCriticalEngine oil pressure low.

The RED warning light will also come on.

 transmission power steering pressure lowFlashingCriticalTransmission/Power steering pressure low.

The RED warning light will also come on.

 hydraulic system low pressureFlashingCriticalHydraulic system charge pressure low.

The RED warning light will also come on.

 transmission oil temperature too highFlashingAMBER – Non-critical

RED – Critical

Transmission oil

temperature too high.

The RED or AMBER warning light will also come on.

 air brake pressure lowFlashingNon-criticalAir Brake Pressure low. AMBER light will also come on.

New Holland Maintenance Symbols

Symbol DisplayAlarm LevelIssueAction
 engine air filter blockedFlashingNon-criticalEngine air filter blockedEach of these symbols advise of an issue that may become critical to tractor operation.

When they start flashing, stop the tractor as soon as possible to investigate the cause.

If you can’t easily fix the problem, bring the tractor in for service at your earliest convenience.

 brake fluid level lowFlashingNon-criticalBrake fluid level low.
 hydraulic oil filter blockedFlashingNon-criticalHydraulic oil filter blocked.
 transmission oil filter blockedFlashingNon-criticalTransmission oil filter blocked.
 transmission oil filter blockedFlashingNon-criticalWater contamination in fuel.

New Holland System Fault Symbols

SymbolDisplaySystemAction
 engine faultOnEngineSystem fault symbols relate to an operational fault in one or more of the tractor’s main components, either, electrical, mechanical or hydraulic.

The symbol may be accompanied by a four digit fault code to help your mechanic diagnose the problem.

 engine cooling system faultOnEngine Cooling System
 transmission faultOnTransmission
 differential lockOnDifferential Lock
 can bus malfunction faultOnCAN BUS Malfunction
 electronic draft control faultOnElectronic Draft Control
 front 3 point hitch faultOnFront – 3-Point Hitch
 braking system faultOnBraking System
 rear pto system faultOnRear P.T.O. System
 front pto system faultOnFront P.T.O. System
 front suspension faultOnFront Suspension
 front wheel drive faultOnFront Wheel Drive
 instrument panel electrical faultOnInstrument Panel Electrical Fault
 fast steer system faultOnFast Steer System
 front electric remote valves faultOnFront Electric Remote Valves

New Holland System Fault Symbols

 

Symbol DisplayAlarm LevelIssueAction
 clutch pedal not depressedAction requiredClutch pedal not depressedInformational: Push clutch pedal.
 shuttle lever in driveAction requiredShuttle lever in drivePlace shuttle lever in neutral.
 parking brake appliedAction requiredParking brake appliedRelease parking brake.
 wheel slip limit exceededNon-criticalWheel slip limit exceeded.

AMBER warning light also on.

Reduce implement draft load.
 dmd backlighting levelNoneDMD backlighting levelInformational: Shows instrument panel backlighting level.
 air brake system pressureCriticalAir brake system pressureSee ‘Warning’ symbols for air

brake pressure.

 engine oil pressure levelCriticalEngine oil pressure level.See ‘Warning’ symbols for engine oil pressure.
 rear pto enganged operator not presentMay be Critical or Non-criticalRear P.T.O. engaged, operator not present.

AMBER or RED warning light will also be on.

If accompanied by critical alarm (RED), engage parking brake.
 ehr remote valve not functioningEHR remote valve not functioning, insufficient oil flow. (May also show R2, R3, R4).Reduce oil flow to other services.