Citroen C5 Aircross (2017- 2024) - Owner's Manual

Orange indicator lights

~10min read

Anti-lock braking system (ABS)

Steady.

The anti-lock braking system has a fault.

The vehicle retains conventional braking.

Drive carefully at moderate speed, then carry out (3).

Service

Lights up temporarily, with a message displayed.

One or more minor faults, with no specific warning light, are detected.

Identify the cause of the fault using the message shown in the instrument panel.

Some faults can be dealt with by the owner, such as replacing the remote control battery.

For other faults, such as a fault in the tyre under-inflation detection system, carry out (3).

Steady, with a message displayed.

One or more major faults, with no specific warning light, are detected.

Identify the cause of the fault using the message shown in the instrument panel, then carry out (3).

Service warning light steady and service key indicator flashing, then steady.

The service interval has been exceeded.

The vehicle must be serviced as soon as possible.

Only with BlueHDi diesel engines.

AdBlue (BlueHDi)

Lights up for approximately 30 seconds at each vehicle start, with a message showing the driving range.

The driving range is between 2,400 and 800 km.

Top up AdBlue.

Steady as soon as the ignition is switched on, with an audible signal and a message showing the driving range.

The driving range is between 800 and 100 km.

Top up AdBlue promptly, or carry out (3).

Flashing, with an audible signal and a message showing the driving range.

The driving range is less than 100 km.

Top up AdBlue without fail to prevent engine start lock-out, or carry out (3).

Flashing, with an audible signal and a message indicating that starting is prohibited.

The AdBlue tank is empty: the regulatory anti-restart system prevents the engine from restarting.

To restart the engine, top up AdBlue, or carry out (2).

A minimum of 10 litres of AdBlue must be added to the tank.

SCR exhaust emission control system (BlueHDi)

Steady as soon as the ignition is switched on, with an audible signal and a message.

A fault in the SCR exhaust emission control system is detected.

This warning goes out as soon as exhaust emissions return to compliant levels.

AdBlue light flashing as soon as the ignition is switched on, together with the engine diagnosis light steady, with an audible signal and a message showing the driving range.

Depending on the message displayed, it is possible to drive up to 1,100 km before the engine anti-restart system is triggered.

Carry out (3) as soon as possible to prevent engine start lock-out.

AdBlue light flashing as soon as the ignition is switched on, together with the engine diagnosis light steady, with an audible signal and a message stating that starting is prohibited.

The anti-restart system prevents the engine from restarting (driving limit exceeded after confirmation of an emission control system fault).

To restart the engine, carry out (2).

Engine diagnosis system

Flashing.

The engine management system is faulty.

Risk of catalytic converter damage.

Carry out (2) without fail.

Steady.

The emission control system has a fault.

The warning light must go out when the engine starts.

Carry out (3) promptly.

Collision risk warning / Active Safety Brake

Steady, with a message.

The system has been deactivated via the touchscreen (Driving / Vehicle menu).

Flashing.

The system activates, then briefly brakes the vehicle in order to reduce the speed of a frontal collision with the vehicle ahead.

For more information, refer to the Driving section.

Steady, accompanied by a message and an audible signal.

The system is faulty.

Carry out (3).

Steady.

The system is temporarily deactivated because the driver and/or front passenger (depending on version) is detected as present, but the corresponding seat belt is not fastened.

Active lane departure warning

Steady.

The system is automatically deactivated or on standby.

Flashing.

Crossing a broken line without activating the turn signal is imminent.

The system activates, then corrects the trajectory if it detects a risk of unintentional lane or road-edge departure (depending on version).

For more information, refer to section 1 Driving.

Steady.

The system is faulty.

Carry out (3).

Lane keeping assist

Steady, accompanied by the Service indicator.

The system is faulty.

Carry out (3).

Dynamic Stability Control (DSC) / Anti-Slip Regulation (ASR)

Steady.

The system is switched off.

The DSC/ASR system is automatically reactivated when the vehicle starts, and above approximately 50 km/h.

Below 50 km/h, it can be reactivated manually.

Flashing.

DSC/ASR regulation activates in the event of loss of grip or loss of trajectory.

Steady.

The DSC/ASR system is faulty.

Carry out (3).

Emergency brake fault (with electric parking brake)

Steady, accompanied by the message "Parking brake fault".

Emergency braking does not perform optimally.

If automatic release is unavailable, use manual release or carry out (3).

Hill start assist

Steady, accompanied by the message "Anti-rollback system fault". The system is faulty.

Carry out (3).

Low tire pressure

Steady, accompanied by an audible signal and a message.

Tire pressure is insufficient in one or more wheels.

Check the tire pressure as soon as possible.

Reset the detection system after adjusting the pressure.

Low tire pressure indicator flashing then steady, and Service indicator steady.

The tire pressure monitoring system is faulty.

Low tire pressure detection is no longer ensured.

As soon as possible, check the tire pressure and carry out (3).

Engine preheating (Diesel)

Lit temporarily (up to approximately 30 seconds in severe winter conditions).

When the ignition is switched on, if weather conditions and engine temperature require it.

Wait for the indicator to go out before starting.

When the indicator goes out, starting is immediate while holding down:

  • the clutch pedal with a manual gearbox.
  • the brake pedal with an automatic gearbox.

If the engine does not start, repeat the start request while keeping your foot on the pedal.

Front passenger airbag (ON)

Steady.

The front passenger airbag is enabled.

The control is set to the "ON" position.

In this case, do not install a rear-facing child seat on the front passenger seat - Risk of serious injury!

Front passenger airbag (OFF)

Steady.

The front passenger airbag is deactivated.

The control is set to the "OFF" position.

A rear-facing child seat may be installed, except in the event of an airbag malfunction (Airbags warning light on).

Airbags

Steady.

One of the airbags or pyrotechnic seat belt pretensioners is faulty.

Carry out (3).

Pedestrian warning device (Plug-in hybrid)

Steady.

A fault has been detected in the warning device.

Carry out (3).

Minimum fuel level

orSteady (indicator or LED) and needle in the red zone (depending on version), accompanied by an audible signal and a message.

The audible signal and the message repeat at an increasing rate as the level drops and approaches zero.

When first illuminated, approximately 5 litres of fuel remain in the tank (reserve).

Refuel promptly to avoid running out of fuel.

Never drive until the tank is empty, as this could damage the emissions control and injection systems.

Diesel fuel filter (Diesel)

Steady.

The diesel fuel filter contains water.

Carry out (2) without delay - Risk of damage to the injection system!

Particulate filter (diesel)

Steady, accompanied by an audible signal and a message warning of particulate filter clogging risk.

The particulate filter is beginning to become saturated.

As soon as traffic conditions allow, regenerate the filter by driving at a speed of at least 60 km/h, with engine speed above 2,500 rpm, until the indicator goes out.

Steady, accompanied by an audible signal and a message indicating insufficient particulate filter additive level.

The minimum level of the additive tank has been reached.

Have the tank topped up promptly: carry out (3).

Automatic functions deactivated (with electric parking brake)

Steady.

The "automatic apply" (when the engine is switched off) and "automatic release" (on acceleration) functions are deactivated.

If automatic apply / release is no longer possible:

► Start the engine.

► Apply the electric parking brake using the control.

► Fully release the brake pedal.

► Hold the control pushed in the release direction for 10 to 15 seconds.

► Release the control.

► Press and hold the brake pedal.

► Pull the control in the apply direction for 2 seconds.

► Release the control and the brake pedal.

Malfunction (with electric parking brake)

Steady, accompanied by the message "Parking brake fault".

The vehicle cannot be immobilised with the engine running.

If manual apply and release requests have no effect, the electric parking brake control paddle is faulty.

Automatic functions must be used in all circumstances and are automatically reactivated if the paddle fails.

Carry out (2).

Steady, accompanied by the message "Parking brake fault".

The parking brake is faulty; the manual and automatic functions may be unavailable.

When stopped, to immobilise the vehicle:

► Pull the switch and hold it for approximately 7 to 15 seconds, until the indicator light appears in the instrument panel.

If this procedure does not work, secure 1 the vehicle:

► Park on a flat surface.

► With a manual gearbox, engage a gear.

► With an automatic gearbox, select P, then place the wheel chocks supplied against one of the wheels.

Then carry out (2).

Parking assistance

Steady, accompanied by a message and an audible signal.

The system is switched off.

Steady, together with the Service indicator, accompanied by a message and an audible signal.

The system is faulty.

Carry out (3).

Foot on clutch

Steady.

Stop & Start: switching to START mode is refused because the clutch pedal is not fully depressed.

Fully depress the clutch.

Power steering

Steady.

The power steering is faulty.

Drive carefully at moderate speed, then carry out (3).

Stop & Start

Steady, with a message displayed.

Stop & Start is manually deactivated.

The engine will not switch off at the next stop in traffic.

Press the button to reactivate the system.

Steady.

Stop & Start is automatically deactivated.

The engine will not switch off at the next stop in traffic if the outside temperature is:

- below 0 ºC,

- above +35 ºC.

For more information, refer to the Driving section.

Flashing, then steady, accompanied by a message.

The system is faulty.

Carry out (3).

Rear fog light

Steady.

The lights are on.

Test yourself

A quick Citroen C5 Aircross quiz: every answer comes with an explanation and a link to the manual page.