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Discussion Starter #1 (Edited)
Be Warned – If you disconnect the passenger side seat air bag connectors (due to “special seat weight module”) without disconnecting the battery this will happen.

Bought the car sight unseen and had delivered (from 700 miles away) a couple months ago and have been very pleased except whoever had leased the car let either a dog or cat ride and pee in it, a bunch.
The car stunk like a wet dog whenever it was damp outside or the inside of the car got very hot.
I had enough of the sink and took all the carpet out, soaked and washed it in Clorox/Detergent water mix, rinsed and dried in hot sun for 2 days.
Put everything back together and the Airbag light was on.
I figured I didn’t connect something or pulled a wire but nope……found the “soft code” Mercedes Star diagnostic horror stories about the SRS Airbag system in our Smart cars.
(Note – I had previously disconnected the driver side seat air bag connectors which turned on the light but when reconnected the light went back out…..did this figuring out how to install a magnet on proximity switch to make the drive side seatbelt buzzer turn off.)
After reading similar issues on this forum, I ordered a used iCarsoft i980 scanner ($95) which reset the Airbag light.
Thanks smartcar forum.
 

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Thanks for the photos - I've been looking for a good photo of the battery-pack disabling "pyrofuse" unit under the driver's side seat. Kane at evilution has asked me for a picture and I told him I was not interested in the work involved unless I had to do it to repair something else after the warranty is expired, so your post is uncannily at the right time.

And also, can you provide some details on how you disabled that annoying seat belt buzzer?
 

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Discussion Starter #3
(There is a magnet in the latch and when the seat belt is inserted and latched that magent moves close to the switch and tells the car the seat belt is on so the buzzer shuts up.) To get around this, remove the proximity switch out of the driver's side seat belt latch...it just slides out. The get a strong small magnet and tape it to the little small round end of the switch...you have to orient the magent with the correct polarity or it want work....just turn the magent over if it doens't turn the buzzer off the first time. See picture.


Also included a couple more pictures of what is under the carpet under the seats.
 

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Could you also just remove the switch and connect the wire ends - or leave open, depending on what the "belt fastened" switch state is?

I'm reluctant to do any even minor mods for one more year (when the warranty expires). Shame it is not as easy as my Subaru - just turn the key switch on (but don't start the engine) , fasten and unfasten quickly 20 times in 30 seconds, turn the key switch off.

Curiously, the only mod I did do while it was a lease was to disconnect the "noisemaker" behind the grille (US DOT requirement for 2016 and newer EV's I think). Before returning the lease, (but got a reasonable offer way below the residual from the dealer so I bought it), I reconnected the noisemaker, but the noisemaker no longer makes any noise. The SAM seems to have it's tendrils around the operation of even the most superficial accessories...
 

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Discussion Starter #5
I actually pulled the driver's seat out of the car and studied the wiring to figure out the proximity switch in the seat belt latch.
It is very very easy to do and nothing you can't put back just like original in 3 minutes.
Just remove the switch from the seat belt latch....switch will just slide out with a little screwdriver help.
Get a small strong magnet.
Put the magnet on the round part of the switch and tape it there.....like the picture above.
If the buzzer goea off or the light in the dash is still there just turn the magent over and try again.


BTW - the first "mod" I did was also unplug the noisemaker.....I don't plan on running over any pedestrains so don't see the need....besides one of the reasons I got the car was to be able to drive around not making any noise.
 

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Kane at evilution has asked me for a picture and I told him I was not interested in the work involved unless I had to do it to repair something else after the warranty is expired, so your post is uncannily at the right time.
As luck would have it, I have just bought an ED.
 

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Gentle reminder that unless one has a medical condition that prevents them from wearing a seatbelt, everyone should be belted in their cars. The smart's excellent safety cell and the suite of airbags are useless if the occupants don't belt up. :(

Side note: Now that I also ride motorcycles, I've begun to pay attention to what other riders are doing. It freaks me out to see how many motorcyclists in Illinois/Wisconsin not only ride without a helmet, but also go so far as to ride in flip flops. Ouch, how are those guys even changing gears!?
 

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Discussion Starter #12 (Edited)
FYI - I do drive on the road with seat belt buckled properly....the buzzer was too loud and came on as soon as you turn the car on....my wife hated it.....me too.....we may sit a minute or two getting ready to go with the AC or heater on, without the seat belt buckled and the buzzer made the experience horrible......I don't need the "government" telling me to be safe anyway.
 

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Is that an ED-only thing? My 451 doesn't beep at me for not having a seatbelt on unless I'm moving. When I'm not moving or had just started the car, it just illuminates the seatbelt light.

While not unheard of, that would definitely seem like a weird mod for the previous owner to install.
 

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Seat belt buzzer doesn't sound off in my ED's until I am underway. I think it is set to buzz at something like 9 mph.

Len
2014 EV Coupe 15,000 miles
2014 EV Cabriolet 5,000 miles
 

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Yes, I always use my seat belt too. But only after the car is started and I'm getting underway. Seat belt warnings - especially the harsh one in the Smart, are major annoyance. There are numerous situations - such as moving the car a short distance where it is PIY to have to fasten the seat belt just to shut the beeper up.

So yes, I have disabled the seat belt warnings in all cars I've owned. Also the clutch pedal interlock in MT cars.

Light aircraft don't have seat belt warnings, so why should cars?
 

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Seat belt buzzer doesn't sound off in my ED's until I am underway. I think it is set to buzz at something like 9 mph.
That's odd... My ED the seat belt buzzer starts the instant the key is turned to "start" and the "Ready!" message appears on the panel. It is so loud and obnoxious that some people have thought it is some kind of urgent warning alarm of some kind.
 

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"Gentle reminder that unless one has a medical condition that prevents them from wearing a seatbelt, everyone should be belted in their cars...... Now that I also ride motorcycles...."
Yes, my other car is a battery-electric motor scooter (not a toy - about the same performance and a bit less range than the Smart ED) used almost every day, 8 or 9 months out of the year. It has no seat belts of course.

If seat belts, air bags etc are so vitally important, than why are motorcycles even legal at all?
 

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If seat belts, air bags etc are so vitally important, than why are motorcycles even legal at all?
Because different classes of road legal vehicles exist. There is risk in driving any type of vehicle with risk generally decreasing as you move up to larger classes. Cars aren't even near the top of the food chain. That risk is further lowered through innovations (sometimes mandatory) like helmets and seatbelts.

I'm not going to tell anyone what to do. The decision to wear a seatbelt or helmet is in the hands of the person sitting in the seat, not me (unless if I'm the driver, then you're buckling up or walking).

However, there is no disputing the seatbelt's track record for saving lives and similarly, the motorcycle helmet.
 

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That's odd... My ED the seat belt buzzer starts the instant the key is turned to "start" and the "Ready!" message appears on the panel. It is so loud and obnoxious that some people have thought it is some kind of urgent warning alarm of some kind.
Yinzer - may have misled you - didn't mean to. On my ED's the seat belt buzzer does sound for 5 to 10 seconds (I think I counted 13 chirps) as soon as I turn the key on. It then goes out until the car reaches the 9 mph or so that I referred to above.

Sorry for the confusion.

Len
2014 EV Coupe 15,000 miles
2014 EV Cabriolet 5,000 miles
 

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If your air bag light is lit up on the dash, does that mean your air bags are inoperative and therefore WON't deploy in a crash? Mine is lit because it says my drivers seat belt buckle is shorted to ground. I can leave it unbuckled and no seat belt light or warning beep. Passenger side works normally. I DO buckle my seat belt anyway, but I need to replace the buckle. DCO
 
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