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Warning lights and alertsUrgency: Garage soon

Power steering warning light on: causes and the faults that trigger it

The warning light showing a steering wheel with an exclamation mark signals a power steering fault. According to Motorpasión, orange usually indicates a minor fault and red a more serious one. The steering does not lock without assistance, so you can still manoeuvre, but the steering wheel becomes very heavy, especially at low speed: if the light is red or the steering suddenly gets very heavy, the sensible thing is to stop and call for assistance; if it is yellow, have it checked as soon as possible.[1][2][3]

Colour: yellow or amber. Symbol: steering wheel with an exclamation mark, yellow or orange if the fault is minor and red if it is more serious.

6 documented faults cause it in 6 cars. The most important:

    What it means

    A warning light showing a steering wheel and an exclamation mark that warns of a power steering fault. When it comes on, the steering can become very heavy, especially at low speed and when parking, although the steering does not lock. Depending on the colour, the fault is considered minor (orange or yellow) or more serious (red).

    General explanation from MotorFiable. How it shows up in each engine, with sources, is in the list of faults.

    What to do now

    Garage soon

    If the steering has suddenly gone very heavy or the light is red, stop in a safe place and call for assistance. If it is yellow or orange and the car is still controllable, drive slowly and carefully to the garage.

    16 sourcesHow we work

    Most common causes

    From most to least likely according to the sources. Under each cause, the part and the related OBD codes.

    1. 1. Low fluid level or leak in hydraulic steering

      Common cause

      On hydraulic systems, Motorpasión cites an oil level below the recommended one first. RACE explains that seals and gaskets deteriorate over time and let the fluid escape, and that a low level shows up as a very heavy steering wheel, especially when stationary, noises, leaks and a smell of burnt oil.[1][3][4][5]

      Faults with with the power steering

    2. 2. Fault in the motor, control unit or electric steering module

      Common cause

      On electric steering, RACE cites control unit misconfiguration and sensor errors among the typical faults, and warns that the control unit and steering module form a single block that has to be replaced as a whole. Motorpasión includes a problem with the assist motor among the causes of the light and Autopista points out that electric steering is fitted to most current cars.[1][3][4][6]

      Faults with with the power steeringFaults with with the control unitsFaults with with the steering rack and column

    3. 3. Faulty steering angle or rotation sensor

      Possible cause

      RACE explains that if the rotation sensor fails, the system does not detect the angle at which the wheels are turned and the steering wheel becomes heavy. As symptoms it adds a steady ESP light, a steering wheel that does not return properly to centre and driver assistance systems switched off; Autopista adds ABS and traction control lights and uneven assistance.[4][7][8]

      Faults with with the power steering

    4. 4. Faulty steering pump

      Possible cause

      On hydraulic systems, RACE points to pump failure, which is accompanied by noise from lack of lubrication, and Motorpasión also includes pump failure among the causes of the light. Autopista attributes the heavy steering wheel to fluid loss, pump failures or electric motor problems.[1][3][4][6]

      Faults with with the power steering

    5. 5. Broken or loose auxiliary belt

      Possible cause

      RACE explains that, on hydraulic steering, the belt carries the engine's power to the pump; on systems with an electric pump, without the belt the alternator does not generate enough electricity to power it and the steering wheel becomes very heavy, especially when stationary. Motorpasión also cites the broken or loose belt.[1][4]

      Faults with with the alternator and starter motor

    6. 6. Flat or worn-out battery

      Possible cause

      Motorpasión includes a flat battery among the causes, because the system would not receive the power it needs to work and the light can come on for that reason.[1]

      Faults with with the 12 V battery

    Depending on what you notice

    The steering wheel light comes on in yellow or orange

    Motorpasión describes a steering wheel with an exclamation mark and distinguishes by colour: orange usually indicates a minor fault or a need for maintenance, and red something more serious. With orange, in most cases the car is still technically able to be driven, but at low speed or when manoeuvring the steering will be quite heavy; RACE adds that the steering does not lock even if the assistance fails.[1][3]

    Yellow steering wheel light on a SEAT Ibiza

    The sources consulted do not cover the Ibiza specifically or distinguish by make, so only general information can be given: a yellow or orange steering wheel with an exclamation mark indicates a power steering fault, less serious than red according to Motorpasión, and the steering will keep working without assistance, with more effort. Autopista advises acting immediately on any symptom of a fault, so it is worth booking an appointment soon.[1][3][6]

    The steering wheel is heavy when turning and the light has come on

    RACE lists power steering among its red warning lights and explains that, with the fault, the steering wheel can become considerably heavier and make control difficult, especially at low speed or when parking. The steering does not lock, so you can still move it, but Autopista admits that you can technically keep driving and does not advise it.[2][3][6]

    The power steering warning light is red

    RACE includes it among the red warning lights, which warn of a serious fault or a problem that needs immediate attention, and generally recommends stopping the vehicle. Motorpasión considers it highly inadvisable to keep driving if the light comes on red or if it is the EPS, electric power steering, because the assistance could be lost completely.[1][2]

    My car has the power steering light on: is it hydraulic or electric?

    The warning means the same, but the causes change: on hydraulic systems it is mainly the fluid, the pump and the belt that fail, and on electric systems the control unit, the motor or the sensors, according to RACE. If under the bonnet there is a reservoir with a cap marked with a steering wheel or the word steering, the system uses fluid, according to Okdiario. Autopista and RACE do not agree on which is the most widespread today.[3][5][6][9]

    The steering wheel light comes on together with ESP or ABS

    This is consistent with a steering angle sensor fault: RACE cites the steady ESP/ESC light together with heavy steering at low speed, and Autopista the ESP, ABS or traction control lights with uneven assistance. Both warn that it is not wise to drive like that for long, because stability control and other aids may stop working properly.[7][8]

    What to check first

    1. Notice the colour of the light and how the steering wheel responds. If it is red or the steering has suddenly become heavy, stop somewhere safe before deciding anything.[1][2]
    2. If your car has hydraulic steering, locate the reservoir (cap with a steering wheel symbol or the word steering, near the pump) and check the fluid level; also look for puddles under the engine or foam in the reservoir.[6][9]
    3. Listen for noises when turning the steering wheel and check for a smell of burnt oil or fluid that is darker than normal; they are signs of a low level or deteriorated fluid.[5][6]
    4. Check the battery and ask for the auxiliary belt to be inspected: a flat battery can switch the light on and a broken belt leaves the pump without drive.[1][4]
    5. Ask a garage for a fault reading. On electric steering, RACE points to the control unit and the sensors as possible causes, and if the sensor is the culprit, after repairing or replacing the angle sensor it must be calibrated with OBD equipment.[3][7][8]
    6. Do not let it slide: Autopista advises acting immediately on any of these symptoms.[6]

    Can I keep driving?

    Urgency: Garage soon

    It depends on the colour and how the steering wheel responds. RACE makes clear that the steering does not lock if the assistance fails, and Autopista admits that you can technically carry on but does not advise it. Motorpasión says that, with the orange light, in most cases the car can be driven at low speed with quite heavy steering, and that with red or if it is the EPS (electric steering) it is highly inadvisable to carry on. With a red light, a suddenly very heavy steering wheel or any doubt, the recommendation is to stop somewhere safe and call for assistance.[1][2][3][6]

    How much it costs to fix

    Indicative prices published by the sources cited; they depend on the car and the garage.

    RepairPrice
    Recalibrating the steering angle sensor (40 to 100 euros at an independent garage in Spain; at an official dealer, around 120)[8]€40 – €120
    Replacing the steering angle sensor (part and labour; Autopista talks about 200 to 600 euros or more, in Spain)[8]€200 – €600
    Changing the hydraulic power steering fluid (product and labour; RACE cites about 100 euros at an official dealer in Spain)[5][9]€50 – €150

    Faults that cause it

    Suspension, brake, electronics and other faults on specific cars, from most to least important.

    1. Source for the symptom in the BMW X3 F25[11]

    2. Source for the symptom in the Peugeot 207[12]

    3. Source for the symptom in the Alfa Romeo MiTo[13]

    4. Source for the symptom in the Audi A4 B5[14]

    5. Source for the symptom in the Renault Mégane II[15]

    6. Source for the symptom in the Audi A4 B8[16]

    Steering light: causes in your car

    6 cars have several documented faults that cause this symptom. Choose yours to see only those that affect it, by engine and by year.

    Alfa Romeo 1
    Audi 2
    BMW 1
    Peugeot 1
    Renault 1

    Frequently asked questions

    What does the steering wheel warning light with an exclamation mark mean?

    It warns of a fault in the power steering system. Motorpasión distinguishes two levels by colour: orange for a minor fault or a need for maintenance and red for something more serious, and RACE includes the light in its guide to red warning lights.[1][2]

    Can the steering lock if the assistance fails?

    RACE states that under no circumstances does the steering lock if the assistance does not work, and Wikipedia explains that on electric systems the mechanical link acts as a backup. The effort is multiplied, though, especially at low speed or with the car stationary.[3][6][10]

    Can I keep driving with the power steering light on?

    Autopista answers that technically yes, but it is not advisable because without assistance the effort needed to turn the steering wheel is multiplied. Motorpasión accepts driving slowly, in most cases, with the orange light, but advises against carrying on with red or if it is the EPS, and RACE recommends stopping with red warning lights.[1][2][6]

    How does a hydraulic steering fault differ from an electric one?

    On hydraulic systems the fluid (leaks through seals and gaskets), the pump and the belt fail; on electric systems, according to RACE, the control unit, the sensors or the motor, and the repair usually involves replacing the whole module. Autopista adds that electric steering, which has no hydraulic circuit, is what most current cars have.[3][4][6]

    Can the light come on because of the battery?

    Yes, according to Motorpasión: a flat battery can switch the light on, because the system does not receive enough power to work properly. It is worth checking the battery before accepting any other explanation.[1]

    How often should power steering fluid be changed?

    RACE says the norm is every two years, although it depends on the manufacturer, and Okdiario gives an interval of 60,000 to 100,000 km or two to three years. It only applies to steering systems that use fluid.[5][9]

    Other symptoms: warning lights and alerts

    All symptoms

    Has this happened to you? Tell us which fault it was, at how many kilometres and how much you paid: it helps other owners know what to expect. Report your fault.

    Sources

    Every fact on this page links to its source. If you find an error, let us know.

    1. 1.Cuando se encendió esta luz en mi coche ya no podía conducir: mover el volante era como levantar 20 kilosMotorpasión · Motoring press · published 4 June 2026 · consulted 4 October 2026 · in Spanish
    2. 2.¿Qué significa cada testigo rojo del coche?RACE · Motoring press · published 23 June 2026 · consulted 4 October 2026 · in Spanish
    3. 3.La importancia del correcto funcionamiento de la dirección asistida en los vehículosRACE · Motoring press · published 23 June 2022 · consulted 4 October 2026 · in Spanish
    4. 4.La dirección asistida está dura, ¿cuál es el problema?RACE · Motoring press · published 30 January 2023 · consulted 4 October 2026 · in Spanish
    5. 5.Líquido de la dirección asistida: ¿cada cuánto se cambia el aceite?RACE · Motoring press · published 22 February 2023 · consulted 4 October 2026 · in Spanish
    6. 6.Dirección asistida averiada: ¿Cómo actuar? Posibles síntomasAutopista · Motoring press · published 18 June 2025 · consulted 4 October 2026 · in Spanish
    7. 7.¿Cómo reparar el sensor de ángulo de dirección de tu coche?RACE · Motoring press · published 24 September 2026 · consulted 4 October 2026 · in Spanish
    8. 8.Cómo reparar el sensor de ángulo de dirección: síntomas, pasos y costesAutopista · Motoring press · published 6 April 2026 · consulted 4 October 2026 · in Spanish
    9. 9.Líquido de la dirección asistida: qué es, cada cuánto se cambia y dónde está el depósitoOkdiario · General press · published 11 November 2025 · consulted 4 October 2026 · in Spanish
    10. 10.Dirección asistidaWikipedia · Other source · consulted 4 October 2026 · in Spanish
    11. 11.Tous les problèmes sur BMW X3 2010-2017 (fiche de fiabilité)fiches-auto.fr · Other source · consulted 5 October 2026 · in French
    12. 12.Peugeot 207 : pannes et fiabilitéfiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
    13. 13.Tous les problèmes sur Alfa-romeo MITO 2008-2019 (297 témoignages)fiches-auto.fr · Other source · consulted 5 October 2026 · in French
    14. 14.DVSA – base de llamadas a revisiónDVSA (Reino Unido), vía check-vehicle-recalls.service.gov.uk · Other source · consulted 5 October 2026
    15. 15.Fiabilité Renault Mégane 2 : les pannes et avis des propriétairesFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
    16. 16.Dirección Audi A4: fallas y solucionesOpinautos · Owners' forum · consulted 27 September 2026 · in Spanish