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I'm trying to catch up with this thread. I'm a bit confused as to whether this app TM-SPY is available for iOS in the Apple Store or should I still request access to the app? I can't seem to find it in the store. Trying to diagnose my 2012 Tesla Model S P85 that threw the infamous BMS_u029. Thanks.

Yes. 029.

2012 Model S P85. 75k miles. Still on original pack. Charging was reduced to ~75 miles 9 months ago, been delaying the expensive HV replacement, but will get it done sometime this month as the charging after 40 miles takes forever (~3 miles / hr). Got the RDU replaced in 2022.

Opened the panel to access the fuse box but unable to get the cover off. Tried pushing the two plastic clips outwards but they were too tight. I didn’t want to use too much force as I’m afraid I might break it.

I've ordered the parts in Amazon and am planning to try fixing the handles early next week. Have another question. I've tied a ribbon around the driver side handle and am able to pull it open. The motor in this door handle keeps running non-stop, I can hear the noise. The front passenger side...

For now, I've tied a ribbon on the driver side door handle for me to be able to simply pull open the door. I tried pulling the handle as far as I could with the ribbon, but the motor continues to keep running. I will try with the microfiber cloth this evening when I get back home. Alternatively...

Thank you very much. I'll certainly keep that microswitch replacement in mind if I decide to fix it myself. Tesla quoted $600 plus taxes for both handles fix. I agree, getting it done by them is stress free. It's just that I'm up against another big spend (HV battery replacement) and paid for...

Fantastic video. I also watched two more videos - one from Rich that was referred in another thread. The more watch, the less complicated it feels. Thank you very much. Appreciate the responses.

Thank you. This is very helpful. I thought of pulling the fuse, but wasn't sure if that would disable the handles and I wouldn't be able to open the door at all. I saw a Youtube video that shows where the fuses are Here the door handles were present and stuck in that position. All he had to do...

The door handles of the driver and passenger side in the front are not presenting. When it happened with the driver side door a month ago, I used the simple method of wrapping the handle with a red ribbon (It's holiday season anyways) after prying it open with a credit card and I simply pull...

Thank you. I've sent a request.

I went back and forth with EVR several times over the past week. The best they could offer is 2years / 20k miles warranty at $10500 (plus labor & taxes) for the 85kw reman. If they offer 3 yrs / 30k warranty for the same price, I will go with them, but they seem to be pretty set on this and said...

I wish I could do this, but I neither have the time or the resources to coordinate this project. Also buying it off ebay, not knowing the condition of the battery is a high risk option. Thanks.

Thank you. Appreciate the suggestions. I certainly can't afford a new battery at this time (spent close to $10 just last year for RDU replacement and MCU upgrades). I can't sell it either as I owe more than what the car is worth (with errors) to the bank. Of course I love the car and the driving...

I got the dreaded BMS_u029 message and also GTW_u019. Tesla has quoted $14,600 plus taxes ($16k OTD) for reman battery replacement with 4 yrs/50k miles warranty. EV'sRepublic quoted $4k less than Tesla but with 2 yrs/20k miles warranty. I also have a similar quote from Recell TX, but since I'm...

I just shared the screen shot of the message received from SC and quoted it. Anyways, million or 500,000 or even 250,000. Mine lasted just for 60k miles. That's where I am. I will never be able to drive million miles in 10 years, at beast 125k miles, that's all I would be driving given my...

I should've been more specific. Here is SC's response when I asked about the warranty and why battery packs fail at 60k miles (or even at lower miles in some cars - as low as 30k miles). with that 999,999 miles / 8 years warranty coverage, I assumed they would last a million miles.

$5k-$6k difference between reman and new pack. Of course new pack would charge better and probably perform faster. But I fail to understand why Tesla can't offer a better warranty for a new battery pack, which is supposed to last a million miles.

@wk057 My ticket number is #057_6082636. I asked Tesla about the details of reman pack such as whether or not it's a 350v or 400v, when was it made, what would be its estimated range / capacity, etc. All they said is that the reman battery is a 85kwh like my current one and 'would perform the...

Thank you for the detailed response. Much appreciate it. As you said, I'm dealing with a major repair of a five figure component which isn't easy money wise, especially after spending ten grand just 11 months ago. I understand and realize that replacing the HV battery (reman or brand new) is the...

Thank you. I completely understand that the alert is there for a reason. Appreciate the response.

Re/Cell promptly sent their quote with three different battery pack options (as they published in their website). Waiting for a response from 057tech, it's been over a week. Sent another follow up yesterday. Since bms_u029 says 'maximum battery charging levels *reduced*' I presume Tesla...

I've written to them @wk057 via the contact form in their website and am waiting for their response/quote.

They quoted 11k to 14k as trade-in value for mine. I will lose big time if I take it. Not sure how to calculate the market value of my car. 2012, P85, 69k miles, RDU was replaced last year with 3 years of warranty left, Infotainment replaced/upgraded with premium connectivity with one more year...

Has anyone dealt with EV's Republic here at Roncho Cordova? EV'S REPUBLIC - Electric Vehicle Service & Community

This sounds too adventurous to me, and I'm not sure if I can handle it by myself.

I asked about the year of reman pack and the voltage 350v / 400v question to Tesla SC and here is what they just responded "As far as the year and voltage we are unable to get this information. The battery capacity will be the same or greater than your vehicle's current 85kwh pack".

Re-cell sent their quotes with three different types of batteries 210+, 210+ Sport and 240+. All of them are 85kwh packs. The difference between 210+ and 240+ is that the former is 350v and the later is 400v, I'm not a tech savvy, but I assume that with 400v one gets more range and also the...

I guess they have those 85kwh in stock knowing there are so many older batches on CA roads and probably knowing that they all would need HV battery replacement. I spoke to the Advisor and he indeed said that they have 85kwh ones available and it will be a morning drop off and pick up in the...

Emailed to them and waiting for their response. Their website doesn't indicate that they do HV battery pack replacements. Let me see what they have to say. Thanks.

The ONLY reason I'm a bit reluctant to ship it out of state is - if something goes wrong on the replaced battery, while the shop will cover the repair/fix, I am responsible for shipping the car out and in which will cost me $3k for a round trip. Whatever saving I'm getting by going with such 3rd...

Tesla SC confirmed that the proposed reman replacement would be a 85kwh battery (same like what I currently have), no 90.

Thank you. I wish there is a shop around in California with so many Teslas on the road.

Thank you for taking time and the pain to explain in length about this. I feel so sad that there isn't a decent shop around here in California, despite the fact that Tesla is being made here and there is a ton of cars on the road since Model S was rolled out. I wish you have a shop here. I can't...

I called and spoke to EVsRepublic here. The Tech advisor was patient and explained the options to me: Option # 1. They will try to do a 'software rebalancing' given the low miles on the car and the bms_u018 indicates imbalance of cells. He said this usually happens when lot of supercharging is...

I understand that about battery. My question was on the RDU which failed magically after an OTA update and I had no prior warnings or performance degradation. My car had 63k miles then, two months past warranty. Are RDUs that fragile and can fail just like that?

I'm using the level 2 by chargepoint at work to charge the car which stops at 90 miles. Tesla service said in their text message that "the BMS detected one or several cells that exhibit a weak short pattern". They also said that the quote is for the exact 85kwh remanufactured battery pack. I...

I'm too distressed to learn all these details. Wish I'd known and researched about this online. I understand battery packs could go wrong no matter how low the miles are, but it's too hard for me to believe that something like an RDU can magically fail after an OTA update at 63k miles and couple...

While I want to believe that an OTA has nothing to do with battery pack failure, it's too hard for me to believe it, because last year in April, I came back from work in the evening after my usual 30 mile round trip commute, parked the car. Next day morning when I went back in to head to work...

Thanks. I can't spend that kind of money right now even on reman, let alone a new one. I spent $10k just 10 months ago for RDU replacement and infotainment upgrade. Right now charging stops at 90 miles, I will live with it for a while until I'm able to afford a replacement. Just hoping and...

Replaced RDU last April as the car failed to start after an OTA in the previous night. Out of warranty so had to spend $8k for RDU replacement. Also upgraded the infotainment. Now with just 69k miles, I got a bms_u018 error. I had 170 miles when that happened, but unable to charge beyond 90...

@wk057 Do you guys have any operations in bay area? My 2012 Tesla Model S P85 threw a bms_u018 error and Tesla says they need to replace the HV battery pack and sent a quote for a remanufactured pack. No info on what went wrong. Just last year, after an OTA update overnight, the car threw...

They have quoted for a 'remanufactured' HV battery. No additional info provided on what model/capacity/warranty, etc. How old is this 'remanufactured one'. And why are they not quoting for a new one? Does this mean, the newer tech battery packs are not compatible with older Teslas? What's the...

2012 Tesla Model S P85. 69k miles. Was out on vacation for over a month, left the car at garage with 210 miles charge. At 140 miles or so, got 'bms_u018 maximum battery charge level reduced, ok to drive and charge. schedule service' message. My daughter tried to plug it at a SC and it didn't...

296k miles! wow! I had to replace it after 55k and paid out of pocket as it was out of warranty. And I never had any warnings, noises, sounds, breakdowns. Parked the car on Friday evening after coming back from work, tried to head out on Sunday morning. The car refused to move and I had multiple...

The mirror assembly came off the windshield without warning and was hanging out. Tesla says it's not 'serviceable' and the entire windshield needs to be replaced which I think is ridiculous. I disconnected the dimming cable and found that the metal plate attached to the glass came off just like...

Good luck with the upgrade. Mine is 2012 Model S P85, and bluetooth sucked big time. It was too slow to start and sometimes the large screen stayed blank for longer period of time, no way to tell if it's restarting when I pressed both knobs on the wheel. Now with the upgrade, everything is...

@scottm I know this thread is pretty old and I hope you get to see my message. After parking my 2012 Model S p85 outside for few weeks, when I came back from my travel, I noticed that the center mirror was hanging off from the windshield. The left half housing was holding the assembly barely to...

Picked up the car and the screen looks fantastic. LTE is great and I don't see any lag. Glad I chose to do the infotainment upgrade. Thanks everyone.

Thanks everyone. I left the car at SC and confirmed the infotainment upgrade. Yes, I plan to intend to keep the car as long as I can. It still drives like a charm, still feels fresh, no squeaking, leaking, etc. The RDU failure (I still can't believe it failed) was VERY unfortunate as I had no...