The Iveco Stralis is a heavy-duty truck known for its advanced driver assistance systems and efficient Euro VI engines. Its instrument cluster provides critical information through a combination of traditional gauges and digital displays, with warning lights clearly organized by priority.
Iveco Stralis Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | This red stop light illuminates when a critical fault is detected, such as low oil pressure or brake failure, in the Iveco Stralis. | Stop the vehicle safely and turn off the engine immediately. Consult the instrument cluster message for the specific fault. | |
| Master Caution | AMBER | An amber caution light signals a non-critical system fault or a service reminder in your Stralis. | Check the instrument cluster display for additional information and schedule maintenance as needed. | |
| Check Engine (MIL) | AMBER | This light indicates a malfunction in the engine management or emission control system of the Stralis. | Reduce engine load and have the vehicle diagnosed by an Iveco dealer as soon as possible. | |
| Engine Oil Pressure | RED | Illuminates when the engine oil pressure drops below the safe operating range in the Stralis. | Stop the engine immediately and check oil level. If oil level is fine, do not restart; call for service. | |
| Battery / Charging | RED | This red light indicates a charging system fault, such as a failed alternator or bad battery connection in the Stralis. | Check battery terminals and alternator belt. If light stays on, have the charging system checked. | |
| Coolant Temperature | RED | Warns that the engine coolant temperature is too high, risking overheating in the Stralis. | Pull over and let the engine cool. Check coolant level and for leaks. Do not open the hot radiator cap. | |
| Brake System | RED | Indicates a fault in the brake system, such as low air pressure or a hydraulic issue, on the Stralis. | Stop immediately and check brake fluid or air pressure. Do not drive until the issue is resolved. | |
| ABS | AMBER | This amber light signals a problem with the Anti-lock Braking System on your Stralis; normal braking remains available. | Drive carefully to a workshop; the ABS system may not function, but service brakes still work. | |
| Parking Brake | RED | Illuminates when the parking brake is engaged or if there is a fault in the parking brake system of the Stralis. | Release the parking brake before driving. If light stays on, check for brake drag or system malfunction. | |
| Glow Plug / Preheat | AMBER | This light comes on when the glow plugs are preheating the engine for cold starts in the Stralis; it should turn off after a few seconds. | Wait for the light to extinguish before starting the engine. If it flashes or stays on, have the glow plug system checked. | |
| DPF / Regeneration | AMBER | Indicates that the Diesel Particulate Filter is regenerating or that regeneration is needed to clean the filter in the Stralis. | Drive at highway speeds to allow passive regeneration, or perform a parked regeneration as per the Stralis manual. | |
| DEF / AdBlue | AMBER | Warns that the AdBlue (DEF) level is low or the system has a fault, which can limit vehicle power in the Stralis. | Refill AdBlue as soon as possible. If the light is flashing, visit an Iveco service center. | |
| Water in Fuel | AMBER | This light indicates that water has accumulated in the fuel/water separator, which can damage the injection system in the Stralis. | Drain the fuel/water separator according to the owner's manual and replace the filter if necessary. | |
| Low Fuel | AMBER | Illuminates when the fuel level is low in the Stralis, typically when about 10% remains. | Refuel as soon as possible to avoid running out of fuel and drawing air into the system. | |
| High Beam | BLUE | Blue light indicates that the high beam headlights are activated on the Stralis. | Dim your headlights when approaching oncoming traffic to avoid glare. | |
| Air Brake Pressure (Low) | RED | This red warning indicates that the air brake system pressure is too low for safe operation on the Stralis. | Stop immediately and let the air compressor build pressure. Do not drive until pressure is normal. | |
| Engine / Exhaust Brake | GREEN | Green light shows that the engine brake or exhaust brake (retarder) is engaged in the Stralis. | This is normal when using the auxiliary braking system; no action needed. | |
| Trailer | AMBER | Indicates a fault in the trailer ABS or lighting connection on the Stralis. | Check the trailer connection and trailer ABS system. If the light persists, have the trailer inspected. | |
| Seat Belt | RED | This red light reminds the driver that the seat belt is not fastened in the Stralis. | Fasten your seat belt immediately. The light may stay on until the belt is secured. | |
| Door Open | RED | Warns that a door or the hood is not fully closed on the Stralis. | Stop and close all doors and the hood securely before driving. |
20 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Overheating
Common causes
- Low coolant level
- Faulty thermostat or water pump
- Clogged radiator or fan failure
What to do
On the Iveco Stralis, check coolant level in the expansion tank and look for leaks. If necessary, allow the engine to cool and add coolant. If the problem persists, have the cooling system inspected by an Iveco technician.
Sudden Loss of Brake Air Pressure
Common causes
- Air leak in brake lines or fittings
- Compressor failure
- Faulty air dryer or pressure regulator
What to do
Stop the truck immediately. Check for audible air leaks and inspect the air tanks. If pressure cannot be restored, do not drive; call for roadside assistance. The Stralis's air system may require professional diagnostics.
Check Engine Light with Reduced Power
Common causes
- Faulty exhaust gas recirculation (EGR) valve
- Diesel particulate filter (DPF) clogged
- Injector or fuel system issue
What to do
In the Iveco Stralis, this often indicates a regeneration needed or an emission system fault. Attempt a parked regeneration if safe. If the light stays on, visit an Iveco dealer for diagnostic trouble code reading.
Low Oil Pressure Warning
Common causes
- Low engine oil level
- Oil pump failure
- Worn engine bearings or oil filter blockage
What to do
Stop the engine immediately. Check the oil level with the dipstick; top up if low. If the light stays on, do not restart the engine—tow the Stralis to a service center.
AdBlue System Malfunction
Common causes
- AdBlue tank empty
- Blocked or faulty AdBlue injector
- Heater or sensor failure
What to do
Refill AdBlue if the light is amber. If the light turns red and a countdown starts, the vehicle may be limited. Have the system diagnosed at an Iveco workshop to avoid engine shutdown.
Frequently Asked Questions
What does the flashing amber 'DPF' light mean on my Stralis?
A flashing DPF light indicates that regeneration is needed but cannot be performed automatically due to low exhaust temperature. Drive at sustained highway speed (above 60 km/h) for about 20 minutes to initiate passive regeneration, or perform a stationary regeneration as per the Stralis manual.
How do I reset the service reminder on the Iveco Stralis?
The service reminder reset typically requires a diagnostic tool. However, you can try turning the ignition on, pressing the trip reset button for 10 seconds, then turning the ignition off and back on. If that doesn't work, visit an Iveco dealer.
Why is my Stralis losing power and showing a yellow engine light?
This is often a limp mode activation due to a fault in the exhaust after-treatment system, such as the DPF or SCR. Check the instrument cluster for additional messages. You may be able to continue driving at reduced speed, but seek service soon.
What should I do if the air brake pressure warning comes on while driving?
The air brake pressure warning means the system pressure has dropped below safe levels. Stop the truck immediately in a safe location. Let the engine run to allow the air compressor to build pressure. If it does not recover, call for assistance.
Is it normal for the AdBlue warning to come on and off in the Stralis?
Intermittent AdBlue warnings can indicate a sensor issue or low quality fluid. Ensure you use certified AdBlue. If the problem persists, have the system checked, as false warnings may still lead to power reduction.
How often should I drain the water separator on my Stralis?
Iveco recommends draining the water separator at every oil change or when the water-in-fuel light comes on. In humid climates, check more frequently to prevent injector damage.