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Warning lights and alertsUrgency: As soon as possible

Brake or handbrake warning light on: causes and the faults that trigger it

The red brake warning light, a circle with an exclamation mark or the word BRAKE, comes on when the handbrake is applied, but it is also the warning for a low brake fluid level and for other faults in the braking system. If it stays on after the handbrake has been released, it is not advisable to carry on: the sources advise stopping as soon as possible and calling for recovery or assistance, even more so if the pedal feels spongy or you brake less effectively.[1][2][3][4]

Colour: red. Symbol: circle with an exclamation mark, sometimes in brackets, or the word BRAKE; on cars with an electric parking brake a P may appear.

3 documented faults cause it in 3 cars:

    What to do now

    As soon as possible

    Check that the handbrake is fully released. If the light does not go out, or you notice a soft pedal or poorer braking, stop the car in a safe place and call roadside assistance.

    What it means

    A red warning light for the braking system, a circle with an exclamation mark or the word BRAKE. It comes on when the handbrake is applied, but it also warns of a low brake fluid level or a fault in the braking system. If it stays on with the handbrake released, it is not a warning to let pass.

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

    14 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. Handbrake applied or not fully released

      Common cause

      This is the simplest cause: the light comes on when the handbrake is engaged and RACE points out that it must be released before setting off. Motorpasión adds that, with a manual handbrake that has not been fully released, the warning usually flashes and a beep sounds.[1][3][5]

      Faults with with the handbrake

    2. 2. Low brake fluid level due to badly worn pads

      Common cause

      RACE explains that when the pads wear down a lot, the caliper piston extends further and the fluid fills that gap, so the reservoir level drops and the red light comes on. Motorpasión and Autopista also include pad wear among the reasons.[3][4][6]

      Faults with with brake calipers and discsFaults with with the brake system

    3. 3. Brake fluid leak in the circuit

      Possible cause

      RACE and Motorpasión cite leaks as a cause of a low level; as fluid is lost, air can enter the circuit and braking suffers. Autofácil advises that, if the level warning comes on, you should first rule out a fluid leak.[3][6][7]

      Faults with with the brake system

    4. 4. Faulty brake pedal or parking brake sensor

      Possible cause

      Motorpasión includes failures in the brake pedal or parking brake sensors among the causes. In that case the light can stay on even though the handbrake is released and the level is correct; only a check at a garage can confirm it.[3]

      Faults with with the handbrake

    5. 5. ABS or ESP fault

      Possible cause

      Motorpasión and Autopista cite an ABS fault among the reasons the brake warning light may come on, and Motorpasión adds the ESP. Autopista warns that, with the light on, it is not advisable to drive, whatever the cause.[3][4]

      Faults with with the ABS and ESP

    6. 6. Serious fault in the braking circuit

      Possible cause

      RACE warns that if the light stays on after the handbrake is released, it may indicate a serious problem in the braking circuit, and lists among the signs of brake failure a soft pedal, a hard pedal or reduced braking effectiveness. The sources do not specify which part fails in each case.[2][8]

      Faults with with the brake systemFaults with with the brake servo

    7. 7. Electric parking brake fault

      Uncommon

      On some cars with an electric handbrake, the system can stay engaged because of a control unit fault, according to RACE, and the light shows a P instead of the exclamation mark. Faults in this system have their own guide, the one on the parking brake warning.[5]

      Faults with with the handbrakeFaults with with the control units

    Depending on what you notice

    The handbrake warning light comes on

    With the handbrake applied this is normal: RACE describes a red icon with an exclamation mark in a circle, or a P if the brake is electric, and points out that it must be released before driving. Driving with it applied wears pads and discs, heats the brakes until they lose effectiveness and uses more fuel.[1][5]

    I have released the handbrake and the light is still on

    RACE says that if it stays on after releasing it, it may point to a serious problem in the braking circuit, and Autopista advises against carrying on driving. First make sure the handbrake is fully released; if the light does not go out, the next suspect is the brake fluid level.[2][3][4]

    The light comes on because of a low brake fluid level

    It is the same warning light as the handbrake one, according to RACE, and with an insufficient level braking capacity can be compromised. The level drops because of badly worn pads or a leak; Autofácil advises ruling out a fluid loss before anything else.[1][2][6][7]

    The brake light comes on and the pedal is soft or braking is weaker

    RACE recommends stopping the vehicle immediately if the light appears together with a spongy pedal or loss of braking capacity. A soft pedal can indicate air in the circuit or a lack of fluid, and RACE reminds you not to switch off the engine if the brakes fail, because the steering would become heavy.[2][8]

    The brake light comes on and it could be the ABS or ESP

    Motorpasión and Autopista include an ABS or ESP fault among the possible causes of the brake warning light. If the red warning is on, Autopista does not recommend driving even if the origin is the ABS; the garage must read the fault to know which system is involved.[3][4]

    What to check first

    1. Check that the handbrake is fully released (lever down or button released) and see whether the light goes out.[1][3][5]
    2. If the light stays on, pay attention to the pedal: soft or spongy, with more travel, and whether you brake less effectively than before.[2][8]
    3. Look for fluid stains under the car, a possible leak, before anything else: it is the first thing Autofácil advises if the brake fluid level warning comes on.[7][8]
    4. Do not try to bleed the brakes if you have no mechanical knowledge; it is a garage job requiring vacuum equipment.[6]
    5. If the light does not go out or there are symptoms of brake failure, stop as soon as possible in a safe place, call roadside assistance or a recovery truck and take the car to a garage.[2][3][4]
    6. Do not take the car for its MOT (the ITV inspection in Spain) with the light on: DEKRA advises against it and the braking system light counts as a minor defect.[9]

    Can I keep driving?

    Urgency: As soon as possible

    It depends on why it came on. If it was the handbrake and the light goes out when you release it, there is no problem. If it stays on, Autopista says it is not advisable to drive with it, Motorpasión advises stopping as soon as possible, calling a recovery truck and taking the car to a garage, and RACE says to stop immediately if there is also a spongy pedal or loss of braking. Driving with the handbrake applied also wears and overheats the brakes.[2][3][4][5]

    How much it costs to fix

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

    RepairPrice
    Changing the brake fluid: around 40 euros for the fluid plus labour (RACE figure from 2020, in Spain)[6]€40
    Renewing the brake fluid: what it adds to the brake bill[10]€30 – €60
    Replacing the pads on one axle (parts and labour)[10]€50 – €150
    Replacing discs and pads on one axle (the price depends on the vehicle and its complexity)[10]€200 – €600

    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 Renault Kangoo II[11]

    2. Source for the symptom in the Peugeot 3008 I[12]

    3. Source for the symptom in the Peugeot Partner III[13][14]

    Brake light: causes in your car

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

    Peugeot 2
    Renault 1

    Frequently asked questions

    Why is the handbrake warning light still on when I have released it?

    RACE attributes it to a possible serious problem in the braking circuit or to a low brake fluid level, which uses the same warning light. Motorpasión adds badly worn pads, pedal or parking brake sensors and ABS or ESP faults, and advises stopping and calling a recovery truck.[1][2][3]

    Can I drive with the brake warning light on?

    Autopista says it is not advisable: the light can indicate anything from the parking brake being engaged to low fluid level, pad wear or an ABS fault. Motorpasión is categorical and advises stopping as soon as possible and calling a recovery truck, and RACE recommends stopping with red warning lights in most cases.[2][3][4]

    What happens if I drive with the handbrake on?

    According to RACE, pads and discs wear sooner, the brakes overheat until they lose effectiveness (brake fade) and a longer distance is needed to stop; the engine also uses more fuel and maintenance costs come sooner.[5]

    How often should brake fluid be changed?

    RACE and Autopista agree that it is usually changed every two years, or as the manufacturer indicates. Autopista adds that the fluid absorbs moisture over time, which lowers its boiling point.[4][6]

    Will a car with the brake warning light on pass the MOT?

    Autofácil, citing DEKRA, reports that the brake system and oil warning lights are not a serious defect but are a minor one, and that several minor defects added together can end in a fail. DEKRA recommends not going to the inspection (the ITV in Spain) with warning lights on.[9]

    What do I do if the brakes fail while I am driving?

    RACE recommends staying calm, taking your foot off the accelerator, warning others with the hazard lights or horn, pumping the pedal hard, changing down and leaving the carriageway. It advises not yanking the handbrake at high speed and not switching off the engine, because the steering would become heavy.[8]

    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. Se ha encendido un testigo luminoso en el cuadro de instrumentos del coche, ¿qué significa?RACE · Motoring press · published 18 November 2022 · consulted 4 October 2026 · in Spanish
    2. ¿Qué significa cada testigo rojo del coche?RACE · Motoring press · published 23 June 2026 · consulted 4 October 2026 · in Spanish
    3. No te la juegues: si se enciende este testigo en el cuadro de tu coche, lo mejor es que pares cuanto antes y vayas llamando al tallerMotorpasión · Motoring press · published 27 April 2026 · consulted 4 October 2026 · in Spanish
    4. Freno de servicio del coche: la pieza clave de tu seguridad que debes entender y cómo funcionaAutopista · Motoring press · published 23 July 2026 · consulted 4 October 2026 · in Spanish
    5. ¿Qué pasa si conduces con el freno de mano puesto?RACE · Motoring press · published 13 November 2023 · consulted 4 October 2026 · in Spanish
    6. Líquido de frenos del coche: ¿cuánto cuesta cambiarlo y cuándo se debe hacer?RACE · Motoring press · published 29 October 2020 · consulted 4 October 2026 · in Spanish
    7. ¿Sabes cuándo hay que cambiar las pastillas de freno?Autofácil · Motoring press · published 17 June 2020 · consulted 4 October 2026 · in Spanish
    8. ¿Qué debes hacer si fallan los frenos de tu coche?RACE · Motoring press · published 14 December 2023 · consulted 4 October 2026 · in Spanish
    9. ¿Puedes pasar la ITV con un testigo encendido? Nos responde el expertoAutofácil · Motoring press · published 11 September 2025 · consulted 4 October 2026 · in Spanish
    10. Cuánto cuesta cambiar los frenos del coche y qué debe incluir un presupuesto fiableLa Noción · General press · published 20 September 2026 · consulted 4 October 2026 · in Spanish
    11. Fiabilité Renault Kangoo 2 : tous les problèmes et vices révélésfiches-auto.fr · Reliability study · consulted 27 September 2026 · in French
    12. Peugeot 3008 : pannes et fiabilitéfiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
    13. Peugeot Rifter 2019: tous les problèmes (71 témoignages)fiches-auto.fr · Other source · consulted 5 October 2026 · in French
    14. Citroën Berlingo 3 2018: tous les problèmes (39 témoignages)fiches-auto.fr · Other source · consulted 5 October 2026 · in French