Toyota Auris owners – 12 volt flat batteries

2012 Toyota Auris Hybrid

As part of Toyota’s rigorous quality control programme, we have investigated the cause of a 12 volt flat battery issue that has left some Toyota Auris drivers unable to start their cars after only a short period without use, usually a couple of days.

We would like to apologise for any disappointment and inconvenience that may have occurred as a result of this issue. But we can now confirm that the cause has been identified and a permanent solution developed.

The following information only applies to any Toyota Auris (including Hybrid) produced between December 2012 and February 2014. If you have an Auris produced after February 2014 your vehicle is not affected by this issue. No other models are involved.

What causes the issue?

The issue is caused when the hazard switch is partially depressed for a very short period of time, incorrectly activating the car’s CAN-bus electrical communications system. This draws a constant flow of current that can discharge the 12 volt battery if the car is left unused for several days.

How can I prevent this from occurring?

Toyota has published a Technical Service Bulletin to its dealer network advising them of a permanent solution to this issue. The bulletin contains information and software files that will enable technicians to modify the software of the car’s combination meter. This update will prevent the incorrect activation of the CAN-bus system and prevent any potential flat battery concerns arising from this area of the vehicle.

If you still have concerns regarding the 12 volt battery of your current generation Toyota Auris then we recommend you get in touch with your nearest Toyota dealer for further assistance.


    1. My wife has a 2012 Auris Hybrid It had a new 12v battery fitted 1 year ago but battery was completely flat after car not started for 10 days Had to have it jump started and drove the car for about 18/20 miles The same fault accured again after leaving for 6 days I had the battery checked by a battery supplier who tested it as says it needs replaced I have spoken to local agent who states this is a regular problem and Toyota won’t replace the battery FOC I have since got a email from Toyota suggesting to buy and fit a solar/trickle charger As this is a known fault should Toyota dealers not be warning potential customers My son also drives a hybrid from another well known brand and wasn’t started for 5 weeks with no problems

      1. Hi Bertie,
        Thanks for getting in touch with us.
        Fundamentally, to charge the 12 volt battery, the vehicle needs to be driven. Shorter and fewer journeys, as we are currently being encouraged to make, do not give the 12 volt battery adequate time to recharge, and this is the same as with any combustion powertrain.
        The AA are reporting significant numbers of callouts from owners of all brands due to this issue, showing that this is a national problem and unrelated to the manufacture of the car.
        You can find information and tips on how to maintain your hybrid vehicle in lockdown here:
        Your nearest Toyota Centre will be able to assess your vehicle and diagnose any issues, so we would recommend making an appointment with them, but if this fault is as a result of a lack of use, we will be unable to support you further.

  1. Hi Hugh,
    Thanks for your comment.
    We can see that you’ve been in touch with our Customer Relations team and would recommend addressing this issue in further detail with them and your dealer as they are best placed to assist you further.

  2. Hi, I have a 2013 Toyota Auris Hybrid. Battery on my car is completely flat today following only two days of not using the car which sounds like it’s got the issue described in this article. I’ve spoken to my local Toyota dealer Fishbrothers who said that I need to bring the car over for them to diagnose/fit a new battery. However they are unable to offer any assistance regarding how I should be taking the car there when I have a completely flat battery. What are my options here, please advise. Car has full service history through Toyota dealerships and had the last service done on 1st of July. During that they checked the battery and confirmed its fine and no need a replacement. Thanks

    1. Hi Oliver,
      Thanks for getting in touch with us. We’re sorry to hear you’re experiencing an issue with your Auris.
      We would recommend contacting your roadside assistance provider, who should be able to recover your vehicle to the Toyota centre.

  3. Again Back At My Local Toyota Dealer, Courtesy Car Unavailable, Battery Issue And Alarm Going Off For No Reason 3-4 Times Daily Mainly At Night Waking Me And The Neighbourhood.

    What Are Toyotas Comments Re: Below, Mine Has The Original Mentioned BY AA.

    Green Flag. It needs replacing after five, six or seven years, like the battery in any other car.

    Hybrid battery problems: petrol electric cars hit – Green Flag

    Toyota Auris owners – 12 volt flat batteries 261 Complaints
    Toyota Auris owners – 12 volt flat batteries – Toyota UK

    Is The Vehicle Fit For Purpose/Safe? If You Stopped In A Secluded Area Potentially Miles From Anywhere Your Entire Family Would Be Stranded.

    Never Will I Purchase A Toyota Again.

  4. We also own a Toyota Auris Hybrid 2010 and have had battery drain issues since the first lockdown. I have changed the battery around 6 months ago and the car then was working ok and have been using it regularly ever since. Now we have the same battery issue again and have managed to jump start the car twice in the last couple of weeks. Today, i went to use the car and the car would not open due to the battery completly drained. I am fed up now, how can a car drain a battery after such a short time after use?. I own a Volkswagen and has not let me down once. Please sort out this Issue.

  5. I have a June 2015 Auris hybrid with the same flat battery problem that many others have reported. The car has been serviced by Jemca in Bracknell every year. The battery first went flat in November 2017 and again soon after in January 2018. Jemca replaced the battery FOC. It next failed in February this year prior to lockdown after I had two nights in hospital. I paid £125 for a new battery in August and it has just failed again. I’ve been taking it out for 10 mile trips every third day but that was insufficient it seems. RAC have been again and checked the system. They can see a 0.5A constant discharge from the battery. This needs to be sorted out by Toyota. I have now purchased an intelligent battery charger (£65) as recommended by the dealer.

    1. Hello Derek,

      We’re very sorry to hear that and hope you are feeling better.
      If you’d like to discuss your experience with our Customer Relations team, they can be contacted by calling 0344 701 6202.


  6. Hi,

    I have 64 reg Toyota Auris and have experisnced battery drainage twice over past 12 months, on the last occasion it triggered my traction,ASB and handbrake lights to come on.
    In regards to the last battery drainage occured when polishing my car inadevrtedly pressed hazards light swithch, by the time finished cleaning the car 45 minutes later battery was non responsive and no electrics what so ever.
    I the jump started the car, but now skid(traction), ASB and handbreak lights come on and would not go away. It’s known issue when battery goes dead to cause ECU to mulfunction and warning lights come on the dashboard.

    I’ve booked the car with Toyota for tomorrow, hopfully can be resolved inder this recognised issue for 2012-2014 models and I an not going to ger robbed for what is known fault.

    I was swearing by Toyota, but if not resolved properly migh have to look elsewhere.

    Skoda sounds right, but will see.


    1. Hi Igor,
      Thanks for getting in touch with us.
      Your Toyota Centre are best placed to assess your vehicle, diagnose any potential faults and offer further advice, so you are in the best hands.

Leave a Reply

Your email address will not be published. Required fields are marked *