Clubjazz - Honda Jazz & HR-V Forums
Honda Jazz Forums => Honda Jazz Mk4 2020 - => Topic started by: JB on January 09, 2026, 10:53:08 PM
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Thanks all in advance for any replies, first, do you only get about six warnings to change
remote battery? got warnings then got new batteries now not getting any warnings and
have not changed battery, if it does need to be changed how is it done?
I have oct 23 advance sport 11,000 miles, was thinking about taking out extended warranty
in oct 26 but have heard some Honda dealers include m-o-ts and some don't [I do have a service
plan with breakdown cover for five years taken when new] so are Honda dealers not all the same?
last thing I think if Honda brought out a new jazz this year or next year and I decided to have one
[as it would be my last car] before I lost more money on my currant car it would be pointless taking
out extended warranty, if a new jazz was all electric I would take out the extended warranty as
there is no way I would have an all electric car, again thanks for any replies.
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My experience has been that the service plan bought with a new car does not include MOT, but if you then buy an extension after five years, MOT can be included.
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When I lived in greater London, Crown Honda Bushey included a free MOT with each service
Crown have since been taken over by Brayley Honda so who knows if this dealership still does the same
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The warning comes on when the signal is weak.. Not sure it can be quantified as just 6 warnings. The key will continue to make transmissions, further weakening the battery even if you do not use the car key. So if you leave it too long before replacing the battery its possible the battery will be completely flat next time you try to use the car,with no second warning, let alone 6. If temperature rises the battery may again preform just well enough to stop the warnings for a while. It doesnt mean everything is now ok .The battery may also fail suddenly as temperature drops. You have been warned and its best to replace the battery asap.
Another possibility is the weak signal was because the key was shielded, maybe in a bag etc ,rather than a weak battery. It may now be in stronger signal area .
Changing the battery is easy. First remove the 'emergency key' from the remote . (BTW this key will get you into the car if the battery is completely flat) . This reveals a location where you can put a coin, or large flat screwdriver between two prominent blocks and by twisting prise the top and bottom halves apart. Its quite robustly made so it does take quite a bit of force the first time. Not beyond physical ability, but I was starting to wonder if I was doing it wrong or might damage the key before it finally unclipped (maybe use a screwdriver whilst conveniently at home , but a coin or even the removed emergency key will do the job) Once apart replacing the battery is obvious and easy and it clips back together with a reassuring quality feel . The instructions advise wrapping the coin in a cloth to prevent scratching the remote. I no longer bother. It also advises care to avoid losing the buttons, which might put you off. IMO the buttons seem secure with little risk. See photo.
Dont be tempted to use budget priced batteries. These may only last a few weeks at best. A few brands have a security insulating sticker that must be removed before use but may not be obvious.
I have always had to pay extra for an mot at any previous dealerships (of all brands) and my current Honda one. If you have several Honda dealerships nearby (increasingly uncommon) maybe ring round and ask. Even if they normally charge for the MOT they might offer it free to secure your custom ,especially if you can mention going to a rival dealership who actually do free MOT's. ( but how far extra is it worth travelling to save the fee? )
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I bought a 23Reg Crosstar, last year from a main dealer. It's due it's first MOT in March when it will have its next service. It will cost me £380 including the MOT.
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The warning comes on when the signal is weak.. Not sure it can be quantified as just 6 warnings. The key will continue to make transmissions, further weakening the battery even if you do not use the car key. So if you leave it too long before replacing the battery its possible the battery will be completely flat next time you try to use the car,with no second warning, let alone 6. If temperature rises the battery may again preform just well enough to stop the warnings for a while. It doesnt mean everything is now ok .The battery may also fail suddenly as temperature drops. You have been warned and its best to replace the battery asap.
Another possibility is the weak signal was because the key was shielded, maybe in a bag etc ,rather than a weak battery. It may now be in stronger signal area .
Changing the battery is easy. First remove the 'emergency key' from the remote . (BTW this key will get you into the car if the battery is completely flat) . This reveals a location where you can put a coin, or large flat screwdriver between two prominent blocks and by twisting prise the top and bottom halves apart. Its quite robustly made so it does take quite a bit of force the first time. Not beyond physical ability, but I was starting to wonder if I was doing it wrong or might damage the key before it finally unclipped (maybe use a screwdriver whilst conveniently at home , but a coin or even the removed emergency key will do the job) Once apart replacing the battery is obvious and easy and it clips back together with a reassuring quality feel . The instructions advise wrapping the coin in a cloth to prevent scratching the remote. I no longer bother. It also advises care to avoid losing the buttons, which might put you off. IMO the buttons seem secure with little risk. See photo.
Dont be tempted to use budget priced batteries. These may only last a few weeks at best. A few brands have a security insulating sticker that must be removed before use but may not be obvious.
I have always had to pay extra for an mot at any previous dealerships (of all brands) and my current Honda one. If you have several Honda dealerships nearby (increasingly uncommon) maybe ring round and ask. Even if they normally charge for the MOT they might offer it free to secure your custom ,especially if you can mention going to a rival dealership who actually do free MOT's. ( but how far extra is it worth travelling to save the fee? )
Thank you very much.
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I bought a 23Reg Crosstar, last year from a main dealer. It's due it's first MOT in March when it will have its next service. It will cost me £380 including the MOT.
That sounds to me that taking out the 5 year service plan was a no brainer,
I do know that a lot of independent garages offer half price m-o-t if your car is serviced
by them, cheers.
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My experience has been that the service plan bought with a new car does not include MOT, but if you then buy an extension after five years, MOT can be included.
It was not the service plan I meant, it was the extend warranty after 3 years which I had seen
could include free m-o-t cheers.
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Regarding the key fob battery , once the car is locked, you can prolong battery life by keeping both key fob buttons simultaneously depressed for about 6 seconds till the red LED flashes ……the key fob is deactivated.
You have to reactivate the fob by simply pressing the open button once you are in range of the car.
Easy peasy!
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Regarding the key fob battery , once the car is locked, you can prolong battery life by keeping both key fob buttons simultaneously depressed for about 6 seconds till the red LED flashes ……the key fob is deactivated.
You have to reactivate the fob by simply pressing the open button once you are in range of the car.
Easy peasy!
Thanks, if I had known that I would not have bothered getting a faraday bag.
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My experience has been that the service plan bought with a new car does not include MOT, but if you then buy an extension after five years, MOT can be included.
Thanks, that's exactly what I read, then noticed depending on dealer [some do some don't]
I would have thought that a 5 year extended warranty taken out with Honda that Honda would tell
all their dealers that the plan includes free m o t not leaving it up to the dealers to decide if they do
or don't.
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Mot is one of several things where the independent dealerships can decide for themselves whether to charge for 'extras' beyond the Honda servicing schedule , such as an MOT . Some may offer a free MOT to attract owners of 3+ year old cars which might otherwise be serviced, and MOT'd by cheaper independent garages. , many of which offer discounted MOT's knowing failures brings extra repair business . I have seen one or two Honda dealerships that actively advertise they service all makes of car.
Some dealerships have multiple branches, and multiple franchises and are perhaps more geared towards new car sales staff than workshop capacity and technicians. These may prefer £45 MOT fees on the corporate balance sheet , and often actively try to include overpriced extras such as A/C service, bacterial treatments etc, which may be unnecessary or much cheaper done elsewhere . My own dealership charges for MOT's but have realised that profits from overpriced extras loses more in customer goodwill.
At my 2021 cars third Honda service I briefly considered having the MOT done separately by my 'favourite' MOT centre at half the cost .( I had used them many times, on a variety of cars with very fair results. ) I didnt, partly because the car was still under 5 year warranty . If it failed on something covered by warranty better to have it all in-house.
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I have a 5 yr service plan. Never enquired about mot. What I do is ask Dealer to collect my car ( fee involved now) and service it.
Short time later take it for mot at my local trustworthy independent garage family business. Good price also.
And Bobs your Uncle and Fanny’s your Aunt! ;D
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JazzFreak, that's exactly the decision I will have to make on 30th September this year.
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My dealer doesn't do MoTs so they have to pay someone else and pass the bill on to me. The service bill gets given to Honda.
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Thanks all in advance for any replies, first, do you only get about six warnings to change
remote battery?...
My MY24 Jazz (bought 08/2023) has just thrown the key fob low battery warning as well.
From my experience: You get these warnings every bl**dy time you turn the car on again!
(I only wish they would cease appearing after six times)
The repeated warnings are so obnoxious that I chose to replace the key fob battery the very same day!
Which, by the way, is quite easily done - just use a good lever - I used the emergency key)
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Yes I only had about six warnings, sometimes when car was started and sometimes every
2 or 3 hours, I changed the battery 3 or 4 days after the warnings had stopped following
the advice and instructions of Mr Lord Voltermore, I liked the post from dfconnolly about
holding the two buttons down on remote till light flashes which disables the signal brought
a faraday bag for no reason now as I see it, I suppose I could still use it as a new battery
every two half years is nothing.
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My strategy was to use 1 key for a year, then change its battery and use the other key for the next year and so on
Never had any key battery warning and just changing one key battery just a safety for me that if something goes wrong I still have the other key
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You can still get into the car using the physical key (which can be released from the fob) with a dead battery. Then the car can be started by holding the fob right next to the Start button.
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Mrs LV and I dont have 'his and hers ' keys .Whoever uses the car uses the same 'master' key. The 'spare' is left at home if the journey is only local. I do switch the spare off by the double button method but on at least one occasion it was found to be on and active when brought near the car.Probably due to an inadvertent button press when handling ,maybe months ago, or only the last few minutes. It once caused some consternation not long before I had a non refundable channel crossing booking. .The car bleeped at me and refused to lock. Eventually traced to the spare key being active and packed in luggage in the car :-[ A daft place . When on it uses battery and vulnerable to relay attack. Even if its off being locked in the car is not an ideal place if you lose the master key. At least the bleeping was a salutary lesson we would not have had if it it had been off or shielded by a faraday bag.
I also keep a CR2035 battery in the car but have never needed to use it. And I now keep both keys hidden away in farday boxes at home , even if I know/think its off.
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My strategy was to use 1 key for a year, then change its battery and use the other key for the next year and so on
Never had any key battery warning and just changing one key battery just a safety for me that if something goes wrong I still have the other key
Good thinking that is, I can't do it that way because when we are out together [wife]
we always get spilt up and never know who will get back to car first.
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Good thinking that is, I can't do it that way because when we are out together [wife]
we always get spilt up and never know who will get back to car first.
Its amazing how slight differences in lifestyle can change our perception and enthusiasm or dissatisfaction with various aspects of the same car.
We live within walking distance of the town centre and several supermarkets and rarely use the car for this purpose. Mrs LV walks twice a week to the supermarket for complicated stuff needing culinary skills and planning. On other days I will walk to buy milk and other heavy basics. She has said she would hate to have me hanging around as a 'trolley minder' getting in every ones way. ;D For other shops ,interests, appointments etc that would bore the other we usually go alone. As we seldom do short journeys the car rarely gets problems with flat battery, splitting seats etc . On the other hand we clock up a lot of miles together on long trips, so I have more appreciation of various driver aids such as ACC.
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Don't you take the Honda 50 and the trailer? ;D
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Don't you take the Honda 50 and the trailer? ;D
Nah . Thats at Angkor Wat, Cambodia. Not very convenient for going to Waitrose. ;D But if (or should that be when) we have to give up the car some of these new electric cargo bikes/trikes might be worth consideration.