1. Introduction
This is a generic alert, and there may be various reasons for its occurrence.
In this guide, you will get following information:
- How to diagnose the exact cause of the alert
- Possible causes for the alert
- How to fix and clear
- Estimated cost to resolve the alert
- How to get quick, easy and affordable remote support (Whats App +49(0)15226242038)
Remote Diagnosis and support to clear alerts
Feel free to contact us on Whats App +49(0)15226242038. We are happy to assist with remote diagnosis and provide support to clear alerts at affordable prices.
Book an appointment to clear alerts
You will also be able to find and compare the most affordable workshop in your region and book an online appointment to resolve the alert.
Spare Parts
Additionally, this guide provide information about spare part number and names. You can also buy new, used, remanufactured spare parts at best prices.
What is VSH?
VHS stands for Voltage Sense Harness.
2. How to Diagnose alert
This alert may occur because one or more system or features are disabled or faulty. The exact cause of the alert can be diagnosed with the help additional alerts.
2.1 How to check additional alert
Additional alerts can be checked via Remote Diagnosis or Service Mode.
If you need support to check additional alerts, feel free to Connect Us Phone/Whats App +49(0)15226242038
2.2 Remote Diagnosis
Remote diagnosis will provide the exact cause of the alert. We offer Remote Diagnosis with affordable prices. Please contact us or book a remote diagnosis. Book Remote Diagnosis
If you have any question about remote diagnosis (how it work), please refer our another guide
If you need support, feel free to Contact Us Phone/Whats App +49(0)15226242038
2.3 Service Mode
In some cases, it can be be possible to find out the exact cause of the alert in Service Mode with the help of following details:
- Service Alerts in Service Mode
- Self-Diagnose in Service Mode
How to check service alerts in Service Mode
- On the touchscreen, click Controls (vehicle icon) > Software
- Touch and hold the large word "MODEL" for 4 seconds and then release.
- Enter "service" as access code (password).
- Clicking Service Alerts to view active and recent alerts. If there is any issue, it will appear in Service Alerts.
For more information, please refer another guide (How to do enable Service Mode) Link
If you need support for diagnosis, please feel free to Connect Us or Whats App +49 (0) 15226242038
BMS_brickVoltageMax
BMS_brickVoltageMin
Send us Service Alerts Photos to clear alerts
Please send us "Service Alert" photos via Contact or Whats App +49 (0) 15226242038.
We will be happy to help you to clear alerts.
3. Alert Code
Some of most common possible alert code.
You might have received one of following alert.
BMS_a129_SW_VSH_Failure
- The battery management system (BMS) has detected a high voltage sense harness (VSH) impedance.
- Inability to charge, drive, or support the low voltage (LV) system
- The BMS detects a VSH impedance value above the threshold.
BMS_f129_SW_BMB_VSH_Connector
BMS_w129_SW_BMB_VSH_Connector
- The battery management system (BMS) has detected an issue with the voltage sensor harness (VSH) connector on the battery monitoring board (BMB).
- The vehicle operates normally. This alert indicates that there may be an issue, and if impedance becomes too high the vehicle will not charge or drive (VOR).
- The BMS detects that the impedance of the VSH connector is above the limit threshold.
Please send us your "Service Alert" Screenshot via Contact or Whats App +49 (0) 15226242038. We will be happy to provide you support to fix/reset alert with affordable prices without going to service center which could save your money and time. We can help you to explain the possible cause, how to diagnose, how to fix/reset/repair etc.
4. Steps to Clear Alert
Some alerts may be resolved by restarting the system, updating the software, reinstalling the software, repairing the hardware, or performing a reset.
4.1 Restart System
Some alerts may be resolved by restarting the touchscreen or powering of the car.
Restart the Touchscreen
First, you can try a soft reset (touchscreen reset).
How to perform a Soft Reset (Restart the Touchscreen)
- Shift the car into park.
- Press and hold both scroll buttons on the steering wheel until the touchscreen turns black.
- Wait approximately 30 seconds for the touchscreen to restart.
For more details, please refer another guide on how to perform these steps Link
Powering Off the Car
If a soft reset (touchscreen restart) has not resolved the alert or issue, you can try a hard reset (powering off the car).
How to Perform a Hard Reset
- Shift the car into park
- On the touchscreen, go to Controls > Safety > Power Off
- Wait at least for two minutes without interacting with the car. Do not open the doors, press the brake pedal, or touch the touchscreen etc.
- After two minutes, press the brake pedal or open the door to wake the car (Source Tesla)
4.2 Software clear
Some alert may be related to software bugs or glitches.
Software Bug and Glitches
One possible reason could be software bug or glitches.
- Did you receive this alert after updating recent software version?
- If yes, it could be related to a software bug and may be resolved in a future software update.
- Please send us screenshot of the Service Alert, and we will inform you if it could be related to software bug. Link
Firmware not Updated
One of the main reasons could be that firmware is not updated.
-
Have you checked for the latest software update and installed the most recent version?
- If not, it is recommended to install latest software version.
- Please ensure that your car is running the latest software version.
How to install latest software version
Controls > Software > Update Available
For more details, please refer to another guide how to install the latest software version. Link
4.3 Hardware Fix
There may be hardware issue or faulty component. Some of common hardware issues include:
Recent Repair
Some alerts may appear if repair was not done properly or if system was not reset.
Did this alert appear after recent repair or service?
- If yes, please let us know which repair or service was performed.
Did you use aftermarket, used spare part?
Battery Monitoring Board (BMB)
One of reason could be that BMB, connector on Battery Management Board are damaged, having malfunction. Please check for any damage.
BMB are connected with 6 bricks, 2 Temperatures and BMS.
BMS PCBA (Battery Management System - Printed circuit Board Assembly)
One of reason could be that BMS PCBA has issue.
We had recently a case where after replacing BMS PCBA alert got resolved. You may use used part with affordable price.
How to remove and replace Link
Other Hardware issues
Please send us a screenshot or video of your car service alerts, along with your car model and year.
Describe issue as much as you can etc. We will be happy to provide you remote diagnosis and support to clear alerts.
Due to trade secrets, we can not share certain details here.
Feel free to Contact us or Whats App +49 (0) 15226242038. We will be happy to help you to clear the alerts.
Cost
Cost could vary depend on issue, type of workshop, location. If you are looking for online support or affordable Tesla independent workshop. Please feel to Contact Us or Call/Whats App +49 (0) 15226242038. Please have a look on common repair prices Price List
Repair Estimate
Please feel to Contact Us or Call/Whats App +49 (0) 15226242038. We will be happy to provide you estimate and book an appointment for you in best affordable workshop.
Remote diagnosis and support to clear alert
In case, if you have any question or need any support/help. Please feel to contact us Contact Us or Call/Whats App +49 (0) 15226242038.
Find, compare and Book best affordable workshop to fix alert
If are you looking for best workshop who is expert to fix such issue with good price. You can find and compare hundreds of Tesla independent workshops. Please feel free to contact us. We will be happy to organize an appointment with workshop. Please find best workshop through our Workshop Locator
Book an Appointment to fix Alert
If you would like to book an appointment with transparent prices (no hidden cost, unexpected surprises).
Book an appointment to fix alert in an affordable Workshop
Buy New/Used Spare Parts
Part price could vary depend on condition (New, Used etc.), OEM or Aftermarket part etc.
If you would like to buy new/used spare parts. Please have a look in our catalog or Contact Us Phone/Whats App +49(0)15226242038
For Repair Workshop Owner
If you are workshop owner and would like to add your workshop in our list. Please contact us.
For Car Mechanic
There are some car owner who like to buy spare parts from OEM or Aftermarket and prefer to do Mobile Service, DIY or need support. If you would like to offer this services to car owner in your region. Please contact us.
Comment
Please leave us comment if you have any questions, if you would like to add/edit/delete some content in guide, if you would like to have guide on any another topic etc.
Frequently Asked Questions (FAQs)
Can I do at Local Workshop, Independent Tesla Workshop?
Yes, you can. However, please make sure that workshop knows how to work to Tesla Cars. If local workshop need any support. Please feel to contact us. We will be happy to provide online shop. You can also find workshop in our Workshop Locator.
Can I do it/repair yourself/myself (DIY)?
Some of repair could be done at DIY. In case, if you needed Tools, Know-How, Time etc. Please feel to contact us. We will be happy to provide you online support.
Note: Please do not work with high voltage components. If you do not need needed/proper Tools, Know-How etc. It could be dangerous.
Mobile repair service?
In some of cases, we could also provide mobile services. Please feel to contact us where are you located and what kind of repair are you looking for.
Car not under warranty, salvage, accident, flood, modified cars?
It is highly recommended to perform repair with independent workshop to save money.
Car under warranty?
In case if your car is under warranty. It is recommended to perform certain repair works (HV Components, ADAS etc) with OEM during warranty period. Wear and Tear Part Repair could be done with independent workshop to save money. Please read more details in another guide. Link
Alert still appearing after repair?
There could be many reasons. Some of reasons could be please make sure that repair was done in correct way, did you restart system after performing repair? did you Reinstall Firmware? Did you use used spare parts? Still appearing alert: Please free to Contact Us. We will be happy to provide you online support. Phone/Whats App +49(0)15226242038
What is VSH?
VHS stands for Voltage Sense Harness.
BMS tests individual connection between brick and Battery Management Boards.
If there will be any issue, it will trigger followings alerts
- VSH Alerts
- BMS_a129, BMS_w129, BMS_f129 alerts together with BMS_w107, BMS_177
- Brick Imbalance alerts
