Thanks for this. Followed your instructions and got a 22-plate Yaris with a completely flat battery up and running. The car is used most days but only very short distances so that's probably the cause. I used a Ring Automotive UltraBoost 1500A instead of a Noco since that's what a local Argos had in stock. It is overkill for this car (500A model would probably work) but we have a diesel with a larger engine, so it's useful for that. The Ring works similarly to the Noco with a polarity check and single button press to use. It also has a boost button for an extra bump but I didn’t require it. On connecting and boosting from the jump pack, the Yaris took a good minute to sort itself out before it was happy to drive off. Lots of low battery, brake errors, and “not ready to turn on” messages before being able to start normally. It used just over 30% of the charge on the jump pack so I expect it charged the 12v battery a bit.

Probably the most informative video to allay fears of the 12v battery issue. Tks

Thanks for this very informative video. Wanted to buy a NocoBoost a while back but did not as I could see the leads are too short to ground it where Toyota recommends you on the left side of the engine. However seeing that you grounded it to the strut tower bolt and nothing happened.THANK YOU for this post. I won't be stranded again as I was and had to call roadside assistance to jump start

I thoroughly endorse the NOCO. I have the GB40 which is probably a bit of overkill, as the GB20 is more than up to the task. They really are as simple to use as you showed. In fact, the hardest part is getting the fuse box plastic cover off but I'm now an expert having had to do it a few times. I'd also recommend the optional hard case from NOCO which adds further protection.

Nice one Paul, hopefully I'll never need it, but I'm off on my holiday soon for a couple of weeks & this has been playing on my mind a little even tho the lady at toyota said it'd be fine after two week none use.......Chinese for tea 😂

Good helpful video that. I carry a Gooloo jump starter in my car, just in case.

Thanks for this! Nothing but issues with 2022 Yaris because of the terrible battery.

Great video I’ve saved this in case this ever happens.

I've got a gb40 1000a noco for £50 pounds of Facebook it's brilliant

What was the need for the rubber gloves? Glad you got the thing started, at least you’ll be able to drive into town and go to the barber’s shop now! 👍

Because the Yaris does not have to be driven to charge the 12 volt battery, any ideas how long it would need to be switched on for to fully recharge from flat once it has been switched on with a power pack. Thanks.

I notice insurance companies are now offering insurance if you run out of power with a flat battery with an EV. Up go the premiums.

Any particular brand of screenwash you prefer using on your cars Paul? I’ve noticed some work better than others

You could have shown how you got in the locked car the access the bonnet release

thank you for the demonstration👍 I think it's the same engine as the Yaris Cross, right?

Said to dealer I am tossing up top of the line Yaris for features, or cheapest petrol (we can still get petrol here) for longer life of 12 volt battery. He said all I need do for either car is disconnect battery before go away and car will always go when I come back after long trip (I am thinking 6 months). Is that true?

Have you seen that on KZfaq I just new hybrid Yaris told dealer in Huddersfield about battery problems.then told him seen something on u KZfaq that Toyota in Poland send New equipment to dealers Europe test battery s replace em there fault not holding charge . when told him said this got different battery on em . Told him auto electrician test battery s off car said drained power next day .said only in Europe said car built in France thick ps told him that guy put different make battery on it woman hasn't been been back

Ps told dealer to day put to test see if goes flat after few days in only week old Yaris told him if does don't bother putting crap Toyota battery on it they been solved i find out if does go flat call RAC out tell him why y tell me solved

Replace battery with good quality one tell dealer Toyota battery are rubbish in Europe test battery s told replace em found falts with em

You should need jump start Toyota Yaris hybrid battery problems defective Toyota Poland send New equipment to dealers in Europe test em replace em so guy test Toyota Yaris hybrid 12volt battery was right throw Toyota Yaris battery away get decent make one they made in turkey battery s ps I