Iveco T-Way Warning Lights and Symbols (Meaning and Fixes)

The Iveco T-Way instrument cluster is designed for extreme off-road and on-road use, featuring a clear 7-inch TFT display that groups warnings by urgency. This heavy-duty truck integrates advanced diagnostics for its Cursor 9 or 13 engine and ZF TraXon transmission.

How to read the colors: Red lights require immediate stop and professional service. Amber lights indicate a system fault that needs attention soon, while green/blue lights show normal operation or active features.

Iveco T-Way Warning Light Symbols

SymbolNameColorWhat it meansWhat to do
Master Warning (Stop)REDA critical system failure has been detected on your Iveco T-Way; the vehicle must be stopped immediately to prevent damage.Pull over safely, turn off engine, and contact Iveco service.
Master CautionAMBERA non-critical fault is present; check the message display for details affecting your T-Way's systems.Consult the instrument cluster message and schedule service soon.
Check Engine (MIL)AMBERThe engine management system has detected a fault in the Cursor engine's emissions or performance system.Have the engine diagnostic codes read by a qualified technician.
Engine Oil PressureREDEngine oil pressure is dangerously low, risking severe damage to the T-Way's Cursor engine.Stop engine immediately; check oil level and pressure sensor.
Battery / ChargingREDThe charging system is not supplying voltage; battery power may soon be depleted on your T-Way.Check alternator belt and connections; if light stays on, tow to service.
Coolant TemperatureREDEngine coolant temperature has exceeded safe limits on the Iveco T-Way; continued operation may cause engine failure.Stop engine, allow to cool, check coolant level and fan operation.
ATTransmission TempAMBERThe ZF TraXon transmission fluid is hotter than normal; reduce load and speed to cool it.Drive gently or pull over and idle with transmission in neutral.
Brake SystemREDA fault in the service brake system has been detected, potentially reducing braking performance on your T-Way.Stop immediately and check brake fluid level and air pressure.
ABSABSAMBERThe anti-lock braking system is disabled; standard braking still works but without ABS intervention.Drive cautiously and have ABS sensor or module checked.
PParking BrakeREDThe parking brake is engaged or there is a fault in the spring brake system on your T-Way.Ensure parking brake is released; if light persists, check air pressure to rear brakes.
Tire Pressure (TPMS)AMBEROne or more tires on the Iveco T-Way are significantly underinflated, affecting stability and fuel economy.Check tire pressures and inflate to recommended levels.
Airbag (SRS)AMBERThe supplemental restraint system has a fault; airbags may not deploy in a collision.Have the SRS system diagnosed by an Iveco dealer.
Seat BeltREDThe driver's seat belt is not fastened; on some T-Way models this may disable certain features.Fasten your seat belt immediately.
Glow Plug / PreheatAMBERThe preheat system is active or a glow plug fault exists; typical during cold starts on the Cursor engine.Wait for light to go out before starting; if flashing, have glow plugs checked.
DPF / RegenerationAMBERThe diesel particulate filter is clogged and requires active regeneration while driving on the T-Way.Drive at highway speeds to initiate regeneration; if light flashes, service is needed.
DEF / AdBlueAMBERThe AdBlue level is low or the SCR system has a fault; engine power may be reduced if ignored.Refill AdBlue at nearest pump; if light stays on, check SCR system.
Water in FuelAMBERWater has been detected in the fuel filter/water separator of the Iveco T-Way, which can damage the high-pressure fuel system.Drain the water from the fuel filter bowl as soon as possible.
Low FuelAMBERFuel level is low, range remaining is limited on your T-Way.Refuel at the nearest station to avoid running out.
High BeamBLUEThe high beam headlights are on, providing maximum road illumination for the Iveco T-Way.Dim when approaching other vehicles.
Power Steering (EPS)REDThe electric power steering system has failed, requiring increased steering effort on your T-Way.Stop safely and have EPS system inspected immediately.
Cold CoolantBLUEEngine coolant temperature is below operating range; the T-Way may warm up slowly.Drive gently until engine reaches normal temperature.
Hydraulic SystemAMBERA fault exists in the hydraulic system, potentially affecting implements or steering on your T-Way.Check hydraulic fluid level and look for leaks.
Fasten Seat BeltREDThe driver's seat belt reminder is active; also may indicate passenger belt unbuckled on crew-cab versions.Fasten all seat belts before moving.
Reduced Power (Limp Mode)AMBERThe engine control unit has limited power to protect the powertrain on the Iveco T-Way.Drive to the nearest service center at reduced speed; avoid heavy loads.
Air FilterAMBERThe engine air intake filter is clogged, reducing performance and fuel economy on your T-Way.Replace the air filter element as specified in the maintenance schedule.
AIRAir Brake Pressure (Low)REDAir brake system pressure is too low to safely operate the T-Way's brakes; the spring brakes may apply automatically.Allow compressor to build pressure; if light persists, check for leaks.
EBEngine / Exhaust BrakeGREENThe auxiliary braking system (exhaust brake or retarder) is engaged on your T-Way.Disengage when not needed to save fuel.
TrailerAMBERA fault has been detected in the trailer's ABS or lighting system connected to the T-Way.Check trailer connections and ABS status.
OFFStability Control OffAMBERElectronic stability program has been manually deactivated on the Iveco T-Way; traction may be reduced.Reactivate ESP when road conditions require stability assistance.
Door OpenREDOne of the cab doors or storage compartments is not fully closed on your T-Way.Stop and close all doors securely.
High Exhaust Temp (HEST)AMBERExhaust gas temperature is elevated during DPF regeneration; avoid parking over flammable materials.Continue driving; regeneration will complete automatically.

31 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.

Most Important Warning Lights

Engine Oil Pressure Loss

Common causes

  • Low oil level
  • Oil pump failure
  • Clogged oil filter

What to do

Stop the T-Way immediately and check oil level; if adequate, do not restart and call Iveco roadside assistance for a tow.

Coolant Overheating

Common causes

  • Coolant leak
  • Radiator blockage
  • Failed fan clutch

What to do

Shut off engine, wait for cool down, inspect hoses and radiator; if leak is small, add coolant and drive to service; otherwise tow.

Brake System Failure

Common causes

  • Air leak in brake lines
  • Low brake fluid
  • Worn brake pads

What to do

If air pressure drops, stop safely; check for air leaks; for fluid loss, top up and bleed brakes; replace pads if thin.

Charging System Failure

Common causes

  • Broken alternator belt
  • Alternator internal fault
  • Battery terminal corrosion

What to do

Try to tighten or replace belt; if light stays on, reduce electrical load and drive to repair shop; if battery dies, jump-start and proceed directly to service.

AdBlue System Malfunction

Common causes

  • Low AdBlue level
  • Faulty NOx sensor
  • DEF injector clogged

What to do

Refill AdBlue tank; if warning persists, have the SCR system diagnosed at an Iveco dealer, as reduced power may occur.

Frequently Asked Questions

What should I do if the Check Engine light comes on while driving my Iveco T-Way?

If the light is steady, you can continue driving but should schedule a diagnostic soon. If it flashes, reduce power and stop to avoid catalytic converter damage; have the fault codes read by an Iveco technician.

How do I perform a DPF regeneration on the Iveco T-Way?

The vehicle will automatically initiate regeneration when driving at speeds above 30 mph (50 km/h) for about 20-30 minutes. If the DPF light is on, drive at highway speeds; if it blinks, take it to a dealer for a stationary regeneration.

Why does the ABS light stay on after starting?

A persistent ABS light indicates a fault in the wheel speed sensors or modulator. The standard brakes still work, but you should have the system diagnosed to restore anti-lock function, especially in off-road conditions.

What does the amber master caution light mean?

It means there is a non-critical warning in one of the vehicle systems. Check the information display for a specific message, such as low tire pressure or a service reminder. You can continue driving but should address the issue soon.

How often should I drain the water separator on the T-Way?

Drain the water-in-fuel separator daily if you operate in humid conditions, or at each fuel fill. If the water-in-fuel light comes on, drain immediately to protect the high-pressure injection system.

Is it safe to continue with the AdBlue warning light on?

If it's amber, you have a few hundred miles of range, but the engine power will be reduced if the tank runs dry. Refill as soon as possible. If it's red, the SCR system has a fault; you may need to stop and call for service to avoid a derate.