How To Stop Seat Belt Warning Chime On 2011 Hyundai Santa Fe 2.4 Auto Awd Gls - Hyundai Forums : Hyundai Forum

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Old 08-20-2011, 09:49 PM   #1 (permalink)
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<div align='center'>[b]Stop Seat Belt Warning Chime on 2011 Hyundai Santa Fe 2.4 Auto AWD GLS


[b]READ THOROUGHLY and ENTIRELY BEFORE DECIDING TO PROCEED

[b]

[b]WHY DO THIS?

1) You're a volunteer firefighter (who actually specializes in extricating vehicle entrapment patients) and you're going less than 10mph, talking with dispatch and on the cell phone as you are setting up incident command. The background noise of the chime is very bad and obnoxious to all.

2) You're pulling up to the mailbox on your private drive and need to power down the window and gather your mail. The reminder is not needed on your private road or as you're backing into your garage.

3) You're going to neighborhood garage sales and the chime kicks in at 10mph which is annoying when you're talking with your passenger.



[b]EXPLANATION OF FIX:

Permanently eliminates the seat belt warning chime from activating when driver side seat belt (buckle switch) is not engaged.



[b]THEORY OF OPERATION:

The driver seat belt buckle switch is a normally closed switch. I tested this by connecting pins 3 & 8 at jack I18 and obtained continuity (not to be confused with voltage) with the seat buckle empty.



I had the seat un-mounted at this point yet could and did connect the seat belt. This opened the normally closed switch and stopped continuity. This tells me that with the seat belt buckled, the BCM (Body Control Module) is not going to react to an open switch (buckled belt).



An unbuckled belt (switch normally closed) causes the BCM, at pin 14, jack M13-B to trigger the chime operation.



By permanently ensuring the circuit is always open, one can cause the BCM not to ever trigger. This does not electrically affect the SRS but a deploying airbag, along with pre-tensioners, need to have the seat occupant held by the seatbelt to be effective and safe. [b]Use common sense when you decide not to wear your seatbelt.





[b]STEPS: (Read all steps first to get a feel and visual of what's involved)

1) Disconnect the negative battery cable and wait five minutes.

2) NOTE: The following steps un-attach the seat from the floor to allow access under the seat, but the seat is not removed from the vehicle.

a. Remove the four driver seat mounting bolt covers. These snap off easily by spreading the sides.

b. Slide the seat forward.

c. Using a 14mm socket, remove the two rear bolts.

d. Slide the seat backward.

e. CAUTION: [b]you can damage your wiring harness here; using a 14mm socket, remove the two front bolts. The seat is now entirely free and can tip over and is no longer easy to slide on its track.

f. If you position the back-back just right, it will lean on the rear seat cushion at the same time the seat you're working on will tip back enough for you to access the harness.

3) With the seat free floating, there are two things to do next:

a. release the black harness retaining clip from the undercarriage of the seat.

b. release the two yellow and one brown plugs from their mates. Each one is a bit different.

c. The harness should now be fully free from the seat and easy to work on.

4) The yellow plug and jack in the middle is what you're looking to work on. It has four wires coming into it.

5) Let's do some confirmation that you have the right thing.

a. From the www.hmaservice.com website; SANTAFE(CM)>2011>G2.4 DOHC>Supplemental Restraint System(SRS)>Schematic Diagrams; SD569-3; Supplemental Restraint System (SRS) (3).

b. It is jack/plug "I18", pin 3, all black wire, DRIVER SEAT BELT BUCKLE SWITCH, photo 78.

c. If you're not handy or comfortable studying those documents, you're looking for the solid black wire on the edge of the middle yellow socket (the socket or jack heads to the BCM). The pin side heads to the seat belt buckle.

d. The wire loom which is bright yellow (indicating it is part of the SRS), can easily be pushed back to expose four wires. I have a blue with silver spot, a black, a yellow with a silver spot, and a black/white.

e. Cut the black wire (pin 3, jack I18, position 3 [albeit this is misleading] and the jack positions are not numbered) about 1 inch from the jack.

f. Take the short end and tuck it into an open spot. It will never move. No tape needed.

g. The other end can just peacefully stay where it is.

h. Slide the yellow loom (the outer covering) back into place.

6) Reattach the driver seat but don't tighten just yet, but enough to ensure the seat slides on the tracks.

7) Reattach the negative battery lead.

8) Go for a test drive with belt on and belt off.

9) If you're successful, there won't be any warning lights with either the belt buckled or not.

[b]10) [b]Upon your return don't forget to properly torque the seat mount bolts.

11) Replace the decorator caps.

12) You're done.



[b]CAUTIONS & DISCLAIMERS OF THIS MODIFICATION WHICH:

1) removes the audible (chime) and visual (instrument panel) warnings for an unbuckled driver side seat beat.

2) is reversible with knowledge of soldering and heat shrink tube.

3) is in no way an endorsement for not wearing your seatbelt. Seat belts save lives and should be worn in virtually all situations.

4) is not going to affect operation of the SRS, but you should not count on the results of this modification for SRS protection alone which is designed to function with a seat belt being worn.

5) worked for me on a 2011 Hyundai Santa Fe 2.4 Auto AWD GLS. The www.hmaservice.com website has good documentation for schematics but the wiring colors did not match.

6) is for non-powered and non-heated driver seat. I'm not aware if this is an important differentiator.





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Old 08-21-2011, 12:53 AM   #2 (permalink)
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There's two easier ways:-

1) Put seat belt clip into it's buckle then sit down

2) Use it properly
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Old 08-21-2011, 01:22 AM   #3 (permalink)
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one thing i found annoying was putting shopping on the front passenger seat, if the shopping is a bit weighty then the passenger seat belt warning buzzer sounds and the warning light lights - seems that the weight of the shopping is enough to make the car think there's a person there
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Old 08-22-2011, 07:59 AM   #4 (permalink)
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good post, but seems a little excessive to snip the black wire by removing the entire seat. I asked dealer to deactivate the beeping noise which drives me crazy and they won't do it. They said even if they did know how to deactivate the chime that goes off every 30 seconds or so, they still would not do it. I will try my GM seat belt extender buckles and clip them in if they work since I already called Hyundai and demanded when I first bought the darn thing a seat belt extender to clip in thinking it was buckled. I demanded Hyundai make these seat belt extenders for say infant car seats that are very hard to buckle in the back seats since the seat belt latch is not very long to get around to buckle them in. Can be done, just harder to do. Also, what about really fat people over 300 lbs. that find it hard to reach way down into the seat to find that latch over their big butt/gut? I'm 275lbs. and even for me, it is hard to reach over and buckle sometimes. GM I know makes seat belt extenders, why not Hyundai? I think it is a little thing to ask Hyundai to make some seat belt extenders for infant car seats and also for really heavy people to make them enjoy driving their vehicles. When I called requesting they make some, they couldn't care less what I thought. Good customer service, NOT!
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Old 08-22-2011, 09:47 AM   #5 (permalink)
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QUOTE (cookiedough @ Aug 22 2011, 07:59 AM)
Quote:
I'm 275lbs. and even for me, it is hard to reach over and buckle sometimes.
I'm over 300lbs but I'm also 6'6". My gut is not the problem (but it does need some downsizing! ) but my troublesome back is. On those days when it is more painful and can't turn very well, I simply grab the belt with my left hand and pass it to my right hand. No problem at all for the right hand to reach the buckle. Just a thought.
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Old 08-22-2011, 10:04 AM   #6 (permalink)
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It's entirely possible to add a "muffler" to the box under the dash (if they haven't moved it, it's above your left shin up there) that produces the sound, and a whole lot easier than what was described here. We have that in another thread somewhere. The sound can be attenuated (to whatever degree you prefer) that way very easily such that it isn't so annoying. My gripe is the dinging going on with the door open while the car isn't even running, but the key remains in. I need my radio gear powered up and running, sometimes with the door open, and it's on the switched side of the ignition.


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Old 08-22-2011, 09:53 PM   #7 (permalink)
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I did silence the seat belt buzzer on my '08 Sonata but the procedure was much less involved. All you had to do was remove the Torx screws from the belt buckle cover then remove the black sliding contact on the little circuit board.

I would not attempt anything involving removing the seat or cutting wires.

Conversely, I silenced the buzzer on 3 2005-06 Toyotas by doing a procedure (found on the Internet) with the seat belt latch and the trip meter button. Easy as pie, wish the Hyundai could be modified so easily without tampering with anything.
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Old 08-23-2011, 01:35 AM   #8 (permalink)
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I wonder if the Hyundai's have what my 07 andn 2010 toyota tundra had which was a little spring that I removed from the seat belt buckle by prying open the plastic cover and removing that little spring. Took all of 5 minutes at most to do and it worked with no more beeping after initial startup. Worked for the tundra, wonder if it will work for the Hyundai's?
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Old 08-23-2011, 08:00 AM   #9 (permalink)
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QUOTE (cookiedough @ Aug 23 2011, 01:35 AM)
Quote:
I wonder if the Hyundai's have what my 07 andn 2010 toyota tundra had which was a little spring that I removed from the seat belt buckle by prying open the plastic cover and removing that little spring. Took all of 5 minutes at most to do and it worked with no more beeping after initial startup. Worked for the tundra, wonder if it will work for the Hyundai's?
Could be or that sliding connector I spoke about yesterday. Thing is, on the Santa Fe, the buckle has no screws to take the cover off as on my '08 Sonata.

Best thing would be a software precedure to suppress the chime.
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Old 08-23-2011, 12:55 PM   #10 (permalink)
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Johnny-bobby,

I asked dealer about a software update to get rid of the chime and called 4 different dealers and none of them said it can be done. Do you have any pics of the inside of the seat belt buckle to post to see what you did? My tundra had no screws to remove on the seat belt buckle either, all I had to do was pry open with a screw driver the 2 piece buckle in the small slot hole by pushing in on the screwdriver on that hole and pry open. Wasn't hard to do and when done removing the spring, the 2 pieces clipped back together, no harm done.
I guess I could see if the buckle is a 2 piece design and pry it open if possible and see what is inside like your Sonata and remove something and see if the chime goes away. I think the tundra spring deactivates the sliding touch mechanism inside thus not making contact to activate the seat belt annoying chiming while driving. No harm was done by removing that little spring and am sure the airbag still worked.
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