Technical

Hi everyone. This is a long shot but I figured I'd see if anyone knows. I am not a Tesla owner but rather an electrical engineer who makes automotive accessories. I'm amidst trying to solve a problem for my client, a breathalyzer interlock company, who cannot successfully install their device...

I’m replacing the default USB stick with a combo of High endurance microSD card and a USB stick which has a card reader (links mentioned below). The USB stick has a direct microSD reader and also a card reader (which can have a microSD inserted in it) However, when I plug the microSD directly...

Hey all, I ordered my Model 3 on 10th Jan (Australia) and have been sorting the finance. Have got approval on the finance now but for some reason I only see the following message (been like that for about 4 days now): We are experiencing technical issues loading your payment details. Please...

After the most recent update for my M3 SR, 2020.48.35.5, my sentry cam no longer records all the events. Several times this week Ive got into my car to see there are multiple events, today was 8, and go to view on sentry viewer and there is only 1 video of me getting into my car. Sentry...

I am requesting a sub forum be created under the 'General Forum' titled 'Home Charging'. I've recently installed wiring to a detached garage to power the whole garage and provide greater charging for my Model 3. I'd like to share the knowledge I've gained from my research that may serve helpful...

Hi helpful folks out there in the community...have been enjoying my little blue baby... did a couple of long trips and maybe after range charging seemed to have a bit longer range for a bit, then it seems to have drifted down but still reasonable. Loving driving this car. BUT THEN day before...

Hi Everybody, I'm trying to start up a local TMC club, but am running up against difficulties. I found the page giving info on it, at: About - Tesla Motors Club On that page, it says: How to create/become a TMC Partner Club? It’s free and simple! Becoming and staying a Partner Club requires...

Matt Shumaker is a technical guy; YouTube since 2007 "Interesting projects and reviews of cutting edge products" seems self-employed; claims he is NOT a fanboy and NOT a tree hugger. He offers a fresh perspective from a technical car guy point of view Civic Si is just one of his cars. Seems to...

I've recently finished a three part video series to explain Tesla's battery technology. Tesla's battery technology has undoubtedly revolutionised the automotive industry, and given the historical significance of the battery pack, I thought it worth looking into further. Part 1 explains the...

Purchased a 2.5 Sport in November. Love the car. The best irrational thing I have ever done! OK... that being said a week ago had to have the Roadster towed to the Tesla shop as the dreaded Error 1144 PEM overheating error popped up. Diagnosis is - needs 2 new PEM fans - better than a new PEM...

This video is a great comparison of the processing speed of the touchscreen in Model X/S versus Model 3. When averaging the speed of different tasks on each model, the Model 3 average 4.44x faster than Model X/S. Given that Model X/S are considerably more expensive than the Model 3, the...

I did some looking around and didn’t see an example of a software update progressing through its various stages. I apologize if this is out there and I just missed it. My observation might be helpful for those buying a used Model S or X and the general idea depicted here applies to Model 3 as...

Fancy charging up your electric car in 10 minutes? Seen as an add-on to Li-ion batteries in the short term.

Hi Everyone, Sasha here from Mountain Pass Performance. If you're thinking - WHO IS THIS GUY? Please know that this is a new account that we created! You may remember us from that Tesla powered Lotus Evora that has been around the internet. This post is a little bit of an introduction to...

Apparently there is a way to charge a dead battery without using the BMB's! Screenshot_20180303-040547 by twiersum posted Mar 3, 2018 at 4:09 AM Screenshot_20180303-040611 by twiersum posted Mar 3, 2018 at 4:09 AM Screenshot_20180303-040629 by twiersum posted Mar 3, 2018 at 4:09 AM

For future reference the sheets & brick numbering starts from negative contactor side and counts up towards positive contactor side. 1 to 11 & 1 to 99

Maybe this is the right area to park my thoughts and encourage others to post theirs... I appreciate the people that come up to me and want to convince me that driving my Tesla Model S 85 is a bad idea. Buying a car can be an emotional experience, but for those looking to do a little more fact...

I have a slightly damaged rear steel subframe for the Roadster (1.5 if they differ) and I'm wondering if any of you folks who are rebuilding cars would want it. It was replaced a few years ago when my car took a hit on the left rear wheel. The rear suspension members bent and the only damage I...

I know Tesla has a method of saving driving logs onto an SD card in the MCU. Do you have, or have you seen, what is on the SD cards? I know one is navigation.

From April 2018, new cars sold in the EU are required to have e-call - a system that will automatically call the emergency services if something bad happens to the car e.g. airbags deployed or emergency button pressed. Data sent to the emergency services includes the car's current location...

Hi everyone, First post – here's a quick introduction... I'm French, just moving from Germany to San Francisco, proud owner of a 1998 Renault Spider, very sad that I am not able to legally import it to the US (yet – 5 more years to wait!)... and since Monday owner (still virtually) of a Tesla...

Does anyone know what all the option codes means on the Model 3? Are they the same as MS and MX? Thanks!

Hello TMC, I've gotten some good information lurking over the past year or two, thanks all! Wondering if anyone has successfully figured out how to control the PTC air heater in the HVAC unit yet? I just received a used one from eBay for a non-tesla related project I'm working on. It's 4 pin...

Hello, I am seeking information as to how the EPB system works exactly in these cars. I would like to retrofit these calipers onto another vehicle, which, due to poor design properties have high failure ratings and an aftermarket supply that is even worse. I plan to use these in lieu of the...

With the vast amount of information on the models, what model is the one for a person transitioning from ICE to an EV. I am just researching the roadsters after a lifetime of Porsches and always wanting a lotus I feel this would be a great time to dip my toe in the water. I feel a 2.x is a must...

Well, perhaps others know of useful things this Lab has done. I don't mean just for defense contractors, but for the rest of us. Anyway, thought you'd enjoy listening. He even owns a Model S, but seem not to know much about Tesla. So far he has spent $120 million on battery research (I'm...

What got UnicornTeam on the list in 2018? Product Security| Tesla

i was told by my SVC to do a hard reset of my MCU and Instrument Cluster all the way to the grey Tesla T weekly to try and help minimize issues. For the past two or three weeks when I reboot the MCU everything comes back up except for the climate system. I have to manually turn it back on. I...

Would it technically be possible through a software standpoint of view to add the Model 3 phone key functionality? Just a random thought that came to mind.

Ninth trip to the trip to the SVC for problems in 15 months. This time we are dealing with more radio and phone connectivity issues, again, my odometer resetting to zero, what seems to be a low powered hvac unit, and scariest of all, a steering problem. When I looked at my mobile tesla app, to...

Hi, i`ve got an Tesla S 75D 2017 modell and i was wondering how i can adjust and set the power to the back wheels. I`ve heard that you can adjust how much power the front and rear wheels have. I terms of horsepower or something i think. Is this a legit thing? Cant find it anywhere on the internet.

Hey guys, So, I was watching the Mobile eye CES2017 presentation, and I'm starting to get a little worried about the state of Teslas level 3 & 4 autopilot progress. In the presentation, it was made very clear that it's important to have a front and rear lidar systems and we all know Elon...

my SVC recently upgraded my radio/phone to the 4glte connectivity board which fixed some of my problems. One thing That is happening every day, multiple times a day, is my radio will autoswitch stations. I get out of the car listening to something on slacker and when open the drivers door the...

i wasn’t sure if this was happening or not. Over the last few weeks it seemed as if I’d set my temp on my tesla app to one temp and when I got in the car it was something completely different. I have been having a lot of weird electrical problems but tonight just confirmed the temp change. I...

I have noticed that if your phone is connected to BLUETOOTH and you are receiving your calls in your car, IF you then use your phone for a TEXT, the car will show YOUR personal phone number and then it cannot be deleted. You have to reset by holding both buttons down, until you get a new screen...

if I’m parked and waiting for someone to come out of the store or waiting on the kids at their school and I have my Samsung phone in the little tray directly below the MCU I at time will get this weird static, buzzing, interference sound through the speakers. I know the obvious answer, move the...

hello experts, in october 2017 i had a battery exchange on my 2.0 roadster "signature 250" , built in 2010. by occasion i got a fine used one with 149 Ah CAC. my old finallly had 129 Ah only. till now after months and 2000 miles with the better battery the car still has not accepted the new CAC...

Hallo ALL for my tesla roadster sport I am looking for a R/H quarter panel all the way to the front wing. Hope someone have one . I can also use one with damage to repair. Kind Regards Michael

I decided to dive right in after only 3 days of ownership and install a blackvue on the model 3. Unlike other posts, I wired the magic power pro directly to the 12v battery for constant power. The whole process was fairly easy considering it was the first time I've ever seen inside a Model 3...

i broke down last weekend 260 miles away from home with a warning that said, “car requires service. Car may not restart.” Roadside had it towed and we drove home in a rental. Turns out my battery coolant heater was going out and when I supercharged twice it sent it over the edge. I also had to...

I don't understand why AP turns off if you keep hands off the wheel. Wouldn’t it be safer to play persistent tones that get louder until you grab the wheel? If a driver is asleep or unconscious, and AP turns off, that’s a sure-fired way to wreck in 30 seconds. If AP stays on, there’s a much...

My insurance provider uses an OBD-II dongle that isn't compatible with the Roadster's diagnostic port. I was wondering if anybody knows where I can purchase an adapter to go from the Roadster's diagnostic port to the more standard OBD-II? My apologies is this has already been covered. I...

If I were to install a 110v outlet through an inverter, hooked to the battery, how quickly am I gonna drain the 12v battery while the car is parked and the inverter is powering some heavy use items? The car would most likely not display is was turned to ‘on’ because I wouldn’t be sitting in the...

I had to post a Youtube video to show the issue I am having and would appreciate any thoughts on how to fix the airbag issue that is presenting in the modelX. Totally weird situation, sensor says airbag off, but indicator lights suggest there is a person in the seat..... had this vehicle for 5...

I have a P85D with AP1 running 2017.50.2 3bd9f6d. The last couple months I’ve had to commute down I66 to Washington DC from my home in rural Virginia, 56 miles each way. I’ve used AP most of the time, particularly on the slower sections nearer the city, but less so on the 80 Mph part near where...

This is my first post so any feedback from veteran users would be appreciated. I purchased my 2017 Model X 100D 12/29/17 and have been very pleased. Many questions have been answered by this forum and I love the challenge of exploring ground breaking technology. There have been a few...

Hello, I don't get any air from position 1 on the fan control. Everything lights up ok - only get fan running on speed 2 or 3. Assume this is not normal - any ideas about where this is all controlled from? Thanks as usual to the brain trust!

I have serious wiper issues ... In this thread, let’s figure out everything hardware, software, DIY, replacement parts etc. related to these puppies. I’ll kick off with my research on the Model S wipers. How the Model S windscreen wipers work! Tl;dr (spoiler): Now let’s wipe that smile of...