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Excellent post and thanks for sharing your research. My cheap EBay part is still going strong. If it craps out on me, I may consider the route you took as there is a junkyard about 30 minutes away. I believe all the people that keep having repeat issues with the brake switch are getting the same defective OEM part that caused the issue in the first place so it’s no wonder that the part continues to fail.
 

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My OEM lasted a month or so after I cleaned the contacts in the brake switch then started having issues...put my replacement switch in a couple weeks ago and all is well again. I took the OEM switch apart and cleaned the contacts again (black soot was on them again) put it back together and put it in the glovebox as a backup. Looks like it’s just going to be an ongoing issue but I’m out of warranty so at least I know what the problem is and I can fix it very easily.
What should I google when looking for this switch?

HELP! I purchased a 2019 nissian armanda back in February with 30K miles. The bci malfunction comes on every time I get in my car. The day before we were leaving for vacation the car would not start. Thought it was the battery. NEW CAR why would we replace the battery??!! We replaced the battery and that fixed the problem for a few weeks. One morning with a practically new battery, I tried cranking the car and nothing. Waited 30 mins nothing. I had to take my kids to school in my honda with 300K miles on it bc my NEW car wouldn't crank. I took the key fob and held it close to the on switch and it finally started. While in line to pick up my kids the bci indicatior came on again. While waiting in line i put my car in park, when time to move forward my car would not let me put it in drive. I had to cut my car off and cut back on for me to put in drive. I really wish someone had a solution. Car dealership, Sutherlin of Mall of Georgia said they couldn't fix the bci sensor not sure why it comes on. I AM ready to take this POS to another dealer and trade it for something else. I saw a few other post about a brake switch I could order off ebay for less$ that may fix my issue. I hate to have a $40KK car that may leave me and my kids on the side of the road. PLEASE help. Any suggestions are welcome.
 

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My first suggestion is MAKE the dealer fix it if you're still under warranty.
If you're not under warranty, read through the last 5 pages of this thread.
There are part numbers that myself and others have used/bought for replacements that have seemed to fix the problem.

Just a few days ago there was a member that found another Nissan switch that didn't have any issues, but also fit the Armada. @Bravosser got a part number?

There was also mention of a TSB that required a computer re-flash. It's not really a huge problem, just annoying until you get it figured out.

The dealer not being able to figure it out would not be acceptable to me. I would escalate that to Nissan USA.
 

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We just bought a 2017 Nissan Armada last month. Today my wife tried to start it and it wouldn’t start for about 5 minutes. Once it finally started the BCI Malfunction warning light turned on along with other lights. I searched the issue and found this thread. After reading the thread I’m a bit panicked. I called the dealership and they said they’ve never heard of the BCI Malfunction. Which was not good news to hear. Since you’ve all been through this issue, what do I need to tell the dealership to look for when diagnosing and fixing this issue?
I just bought a 2017 Armada Platinum and just yesterday I got this error. I was just sitting in the parking lot with truck running and the dash went crazy.
I turned the truck off then it didn’t want to restart....after a min or so it started. I got that error like 3 more times the same day.
I was afraid to turn the car off of being stranded somewhere.
I must say last weekend I towed a U-Haul trailer..... and the brakes seemed like they were bucking.... should I have disabled the bci function???
 

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My first suggestion is MAKE the dealer fix it if you're still under warranty.
If you're not under warranty, read through the last 5 pages of this thread.
There are part numbers that myself and others have used/bought for replacements that have seemed to fix the problem.

Just a few days ago there was a member that found another Nissan switch that didn't have any issues, but also fit the Armada. @Bravosser got a part number?

There was also mention of a TSB that required a computer re-flash. It's not really a huge problem, just annoying until you get it figured out.

The dealer not being able to figure it out would not be acceptable to me. I would escalate that to Nissan USA.
The part number for the switch off the Murano I used was 25320-AX00B (niles). But now it supersedes to 25320-AX10A (valeo). which is the new part number you’ll get and is the switch everyone is having issues with. Get an aftermarket brand like back/arnley, Holstein, Vemo and etc. use 25320-AX00B on rock auto’s website part search and you’ll get a list of aftermarket manufacturers for this switch. but don’t get the OEM Nissan or you’ll run into trouble again.

If you want the OEM 25320-AX00B (niles) you’ll need to go to the junk yard and get it. Here’s a list of some cars that you can pull off the yards..

03-08 350Z
07-2011 Altima
09-14 cube
05-up frontier
05-09 Murano
09-12 maxima
 

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Bci malfunction light came while driving it home from dealership! I couldnt believe it and it has come on everytime I've driven it..I've owned it for a week, it has 40k. Dealer said it's probably the wiring harnass for front sensors. Others say brake switch.
 

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Bci malfunction light came while driving it home from dealership! I couldnt believe it and it has come on everytime I've driven it..I've owned it for a week, it has 40k. Dealer said it's probably the wiring harnass for front sensors. Others say brake switch.

Guaranteed it’s your switch.
 

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I'm betting the dealers going to argue with me about it and do what they want.. any chance of me having any input?
Yes have them read this post lol. Service advisorS don’t like to be corrected or customer telling them what’s wrong with the car. All u can say is you read about this issue online and it’s always the brake light switch and it’s a big issue with the OEM switch. My issue was fixed by using an older style switch from a junk yard car. The new OEM switch they are using is junk. They are easy to change so just keep a spare in your glove compartment.
 

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Yes have them read this post lol. Service advisorS don’t like to be corrected or customer telling them what’s wrong with the car. All u can say is you read about this issue online and it’s always the brake light switch and it’s a big issue with the OEM switch. My issue was fixed by using an older style switch from a junk yard car. The new OEM switch they are using is junk. They are easy to change so just keep a spare in your glove compartment.
Are they cheap enough and easy to do where it wouldn't be worth my time to take it to a dealer? My closest nissan is about 45 minutes away..
 

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My 17' Armada started doing the same thing four weeks ago and has been very intermittent. Because some have had luck with the brake switch I ordered one:

Part No.: 25320-AX10A
SWITCH ASSY-STOP LAMP

from Nissanpartsdeal along with the cruise control switch:

Part No.: 25300-AT30A
SWITCH ASSY-ASCD CANCEL
Replaced by: 25300-3RA0A

The OEM stop lamp switch installed in my vehicle (I have owned my Armada since new) was indeed manufactured by Valeo and was all black in color. The replacement part I ordered was black and green in color. I have replaced the switch and will see how it works. After reading through this thread I don't have a lot of faith that it will be fixed for good. Based on some posts I wonder if there could be an issue with the position of the switch in the vehicle based on the plastic piece that holds the switch in place. That could be flexing/moving over time and causing a similar issue to an intermittent contact in the switch. I have not replaced the cruise control cancel switch yet because I want to see if changing the brake switch makes any improvement at all.

My only ask in here is some posters are coming into this thread, posting that they have had some success with their dealer but then not following up with what actually took care of the problem (if anything). Please take a minute to post a follow up with an explanation of what the dealer did do to successfully repair. I will definitely post my DIY experience because my vehicle has 46K miles and is now out of warranty. I like it too much to just trade it off yet. We shall see.

Update: Almost two weeks now since I replaced the Stop Lamp Switch Assy. with the part I listed above. Prior to replacing it my Armada was having the BCI malfunction on every drive even if it was only a few miles. So far it has not returned. Will keep updating this post as time goes on.
 

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My 2018 Armada SL with 45,000 miles on it started having this issue the last three weeks (starting was intermittent). I received the new OEM brake switch and installed last night. Drove to work this morning with no issue. Coming back the BCI indicator went on (among a couple other things like Slip Indicator light and tow light) and the Armada started shaking and wouldn't go much over 45mph - could tell the brakes were on. Pulled over and shut it off. Put the old brake switch in, starting not the problem - but wouldn't go anywhere because brakes were engaged. Called the tow truck, its now at the dealer. I have a feeling this will be expensive and inconclusive.

I did spray paint my rear hitch over the weekend on the back and front side - that shouldn't have any impact right? Can't imagine there is any sensor behind the bumper that if spray paint got on it would impact the BCI function??
 

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I just bought a 2017 Armada Platinum and just yesterday I got this error. I was just sitting in the parking lot with truck running and the dash went crazy.
I turned the truck off then it didn’t want to restart....after a min or so it started. I got that error like 3 more times the same day.
I was afraid to turn the car off of being stranded somewhere.
I must say last weekend I towed a U-Haul trailer..... and the brakes seemed like they were bucking.... should I have disabled the bci function???
I just bought a 2017 Armada Platinum and just yesterday I got this error. I was just sitting in the parking lot with truck running and the dash went crazy.
I turned the truck off then it didn’t want to restart....after a min or so it started. I got that error like 3 more times the same day.
I was afraid to turn the car off of being stranded somewhere.
I must say last weekend I towed a U-Haul trailer..... and the brakes seemed like they were bucking.... should I have disabled the bci function???
My 2017 Armada has spent 13 days over 3 visits in the Nissan shop, trying to solve the BCI Malfunction issues many people have. Like others, power would drop, cruise control would kick out randomly etc.. On first visit to Nissan they reprogrammed the antilock braking computer - didn't help. On the second visit, they replaced the Brake Light Switch - didn't help. On the 3rd visit, they dug deeper than just their diagnostic tool, and discovered that when they disconnected my trailer brake controller, the problems went away. Fingers crossed, that has been the problem. I'm going to drive it a while without the controller, and if all is well, I'll have a new trailer brake controller installed. Nissan does not furnish that accessory, so you have to go 3rd party. Anyway, thought I'd share this in case others may want to try this simple, do it your self solution to BCI Malfunction. Good luck!
 

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This issue for me has been ongoing since I had the vehicle. Left me stranded with the car not starting. Dealer had my car 4 times changed the battery the first time... second the brake switch... 3rd time said the brake switch they replaced must have been bad. Now they 4th just flew in a master mechanic from Nissian to look This chronic problem who said since he cannot replicate the problem he cannot suggests any repairs... 20 min after my case owner at Nissian North america calls me to tell me this the dealer calls me and says we found the issue it’s the ABS control assembly... however Nissian will not fix this under warranty for me and it’s a $4,500 job.... part number suggested by Nissian is 46007-5ZA9C... I have read in this thread that this did not fix someone else issue. I have called a lawer sounds like enough folks here having Same issue and I am sure there are more out there. maybe class action suit is they way to go. I just got my car back last week after Nissian had if for almost a month and I just replicated the problem in less then a week. Car won’t start will have Nissian come tow this POS and hopefully do the right thing and fix what they believe the issue is. My take on it is Nissian knows there is an issue but is turning their heads because the fix must be expensive and a recall could cost them a lot of money to fix the real problem.
Iam having the same problem took mine in today said they couldn't find anything. Wanted to keep it today but told them they couldn't because it was my wife only transportation for work. Gonna rent a car next week and take it back to see if they can find out what the issue is. 2018 Nissian Armada platinum

The dealer repaired it under warranty, all good
How did they fix it??
 

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Guys looks like nissan must’ve finally figured it out it’s their crappy brake switch! The OEM valeo 25320-AX10A has now been replaced by The new OEM 25320-AX00E! Looks like I’m gonna order one and try it out, and hopefully not use a 13 year old switch.
 

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Guys looks like nissan must’ve finally figured it out it’s their crappy brake switch! The OEM valeo 25320-AX10A has now been replaced by The new OEM 25320-AX00E! Looks like I’m gonna order one and try it out, and hopefully not use a 13 year old switch.
What I am seeing indicates that 25320-AX10A is the new part that replaced 2532--AX003.
49422

49423
 
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