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      12-18-2016, 07:10 PM   #1
chambolle
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Weird seatbelt warning chime issue

I often drive with a messenger bag or my ipad pro on the passenger seat. I've discovered that putting anything at all on the passenger seat that weighs much more than a cell phone (like my tablet) will trip the seatbelt warning chime in my M2.

Anyone else experience this? Is there a fix? Sure is annoying as all hell.
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      12-18-2016, 07:15 PM   #2
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I think the only way around it would be to plug the passenger seat belt in, that or put your stuff on the floor or on the backseat.

Only other option i guess would be to get the chime coded off.
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      12-18-2016, 09:07 PM   #3
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Or slip your iPad in the space between the seat and the thigh extender.

I've put things on my seat like pizzas (put the heater on to help it stay warmer lol) and have never had it go off
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      12-18-2016, 09:39 PM   #4
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I had seat belt warning coded off.
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      12-19-2016, 02:05 AM   #5
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Quote:
Originally Posted by chambolle View Post
I often drive with a messenger bag or my ipad pro on the passenger seat. I've discovered that putting anything at all on the passenger seat that weighs much more than a cell phone (like my tablet) will trip the seatbelt warning chime in my M2.

Anyone else experience this? Is there a fix? Sure is annoying as all hell.
You might have a faulty sensor, my 25 lb shiba inu sits in the front passenger seat of my M235 and rarely sets off the warning chime.
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      12-19-2016, 07:14 AM   #6
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Quote:
Originally Posted by chambolle View Post
I often drive with a messenger bag or my ipad pro on the passenger seat. I've discovered that putting anything at all on the passenger seat that weighs much more than a cell phone (like my tablet) will trip the seatbelt warning chime in my M2.

Anyone else experience this? Is there a fix? Sure is annoying as all hell.
There is a sensor in the seat that is designed to determine if there is a passenger in your vehicle with you. If the object on/in the seat weighs more than about 20 lbs then the vehicle determines that the airbags for the passenger seat should be active and that the passenger in/on the seat should be properly belted for safety.

If your bag /item weighs so much and yet you choose not to put it on the *floor* rather than placing it on the seat where it likely will slide onto the floor in a collision or heavy braking episode... then you probably should just latch the passenger side seat belt into place permanently as a cheap work around.

Or you could also have the car coded.
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      12-19-2016, 10:28 AM   #7
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Sounds like a faulty sensor - usually takes about 20-25 lbs to trigger it.
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      12-19-2016, 11:07 AM   #8
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1. If you code if off does that stop the airbag from deploying on that side? Does that effect the airbag on the driver's side.
2. If the iPad pro falls on the floor and there is no-one to hear it, does it make a sound?
3. I agree, your sensor is off....I put stuff on the passenger seat all the time (in all my cars over the years), soft brief case bag with about 20 pounds of 'stuff' in it, and it has never chimed on me.

While you are at the dealer getting that looked at, pick up some winter floor mats for me, you can mail them to me.

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      12-19-2016, 03:13 PM   #9
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Quote:
Originally Posted by Ramos View Post
You might have a faulty sensor, my 25 lb shiba inu sits in the front passenger seat of my M235 and rarely sets off the warning chime.
Agreed. My 15 pound dachshund rides shotgun on occasion and has not set it off yet.
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      12-19-2016, 04:30 PM   #10
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Quote:
Originally Posted by chambolle View Post
I often drive with a messenger bag or my ipad pro on the passenger seat. I've discovered that putting anything at all on the passenger seat that weighs much more than a cell phone (like my tablet) will trip the seatbelt warning chime in my M2.

Anyone else experience this? Is there a fix? Sure is annoying as all hell.
Sooooo...random question.

Were you charging the ipad and/or was it plugged in via USB?
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      12-19-2016, 07:30 PM   #11
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The seat weight monitor in my M2 does seem like it has a lower threshold than my X6 and 328i. I picked up fast food this weekend and sat it in the seat which set off the alarm. That hasn't happened in my other cars. My 12 pack of beer sets it off too. Ok, the beer sets off the other cars too.

Mine is a MY17. Which is yours? Curious if the sensitivity is different from the MY16.
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      12-20-2016, 07:41 AM   #12
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I'm not sure with BMW's, but some car makes also have a sensor on the lower backrest to determine if there is a passenger. Do M2's have this?
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      12-20-2016, 08:29 AM   #13
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Quote:
Originally Posted by jtfields View Post
The seat weight monitor in my M2 does seem like it has a lower threshold than my X6 and 328i. I picked up fast food this weekend and sat it in the seat which set off the alarm. That hasn't happened in my other cars. My 12 pack of beer sets it off too. Ok, the beer sets off the other cars too.

Mine is a MY17. Which is yours? Curious if the sensitivity is different from the MY16.
MY16 here. Took a 25lb weight to trigger mine, I checked last night for fun.
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      12-20-2016, 10:58 PM   #14
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FUBAR sensor sounds about right

My ipad weighs a couple of pounds max, my bag fully loaded perhaps 5 pounds, so it definitely should not trigger the seatbelt warning chime. Something for the dealer to address when the 1200 mile 'checkup' rolls around. I don't really want to engage the passenger seatbelt all the time.

Thanks to all for the advice. But out of curiosity, how does one 'decode' the warning chime? It's friggin' annoying, I have a long 10 mph drive to my mailbox and don't really feel the need to belt up to get there, unbelt, grab mail, relatch the belt. PITA in fact.
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      12-21-2016, 04:39 PM   #15
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Quote:
Originally Posted by chambolle View Post
My ipad weighs a couple of pounds max, my bag fully loaded perhaps 5 pounds, so it definitely should not trigger the seatbelt warning chime. Something for the dealer to address when the 1200 mile 'checkup' rolls around. I don't really want to engage the passenger seatbelt all the time.

Thanks to all for the advice. But out of curiosity, how does one 'decode' the warning chime? It's friggin' annoying, I have a long 10 mph drive to my mailbox and don't really feel the need to belt up to get there, unbelt, grab mail, relatch the belt. PITA in fact.

-Coding -
Involves finding a teenager with a laptop to reprogram your vehicle away from the factory settings.
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      12-31-2016, 01:34 AM   #16
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My 5lb notebook will set off sensor, so I disabled audio chime and left instrument cluster status.
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      01-01-2017, 11:54 PM   #17
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Originally Posted by Almaretto View Post
My 5lb notebook will set off sensor, so I disabled audio chime and left instrument cluster status.
And you did that how? Dealer tells me they cannot disable the chime... it's DOT mandated and they won't touch. True or not, that leaves me to fend for myself.
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      01-02-2017, 12:58 AM   #18
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Quote:
Originally Posted by chambolle View Post
And you did that how? Dealer tells me they cannot disable the chime... it's DOT mandated and they won't touch. True or not, that leaves me to fend for myself.
Enet and E-sys. Really easy to do.
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      01-02-2017, 01:16 AM   #19
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Quote:
Originally Posted by chambolle View Post
And you did that how? Dealer tells me they cannot disable the chime... it's DOT mandated and they won't touch. True or not, that leaves me to fend for myself.
Dealers won't ever do anything to disable a safety system, this is America and we have created a litigious society so they would never take on the liability, in fact those who do code this away should remove that change before they sell the car because you never know who is going to sue you because they are too stupid to put on a seat belt.
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      01-02-2017, 01:19 AM   #20
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Quote:
Originally Posted by pruettfan View Post
Dealers won't ever do anything to disable a safety system, this is America and we have created a litigious society so they would never take on the liability, in fact those who do code this away should remove that change before they sell the car because you never know who is going to sue you because they are too stupid to put on a seat belt.
Dealers can only VO code; they neither have know how or software to FDL-Code. You can remove initial welcome gong this way (ie SA Code 845), but you will need E-sys to further remove auditory warnings or cluster status indicators.
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