1. Introduction
This is generic alert and there could be many reasons for this alert. In this free guide, you will get information about how to diagnose the exact cause of this alert, what could be the reasons for this alert, how to fix it, How much it cost to fix, How to get online support, Find and compare best affordable workshop in your region and book an online appointment to fix alert, Information about spare part number and name and buy new and used spare parts with best price etc.
1.1 What is BMS (Battery Management System)?
"Battery Management System is a printed Circuit board assembly, which communicates with the BMSs (each module) and the powertrain/vehicle. Please check more details in another guide. Link
2. How to Diagnose
This alert could come because of one or more system/feature is disabled/faulty. The exact cause of this alert could be diagnosed with the help additional alerts.
2.1 How to check additional alert
It could be possible to find out exact cause via Remote Diagnosis, Service Mode. In case, if you need support to check additional alerts. Please Connect Us
2.2 Remote Diagnosis
Please read more details about Remote Diagnosis in another guide (How to do, Cost etc.) Link If you need support. Please Contact Us Phone/Whats App +49(0)15226242038
2.3 Service Mode
It could be possible to find out the exact cause of the alert with the help of services alerts 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.
- After clicking on Service Alerts. You can read service alerts. If there is anything wrong with car. It will show in active alerts.
Please read more details in another guide (How to do enable Service Mode) Link
In case, If you need support for diagnosis. Please Connect Us.
Please send us "Service Alert" Screenshot via Contact or Whats App +49 (0) 15226242038. We will be happy to help you to explain alert and how could be fixed, cost, support for fixing if possible online support or to organize an appointment with independent best affordable workshop.
Depend on alert/fault code, car might need to be repaired/serviced.
3. How to Fix it
Some of alert could come because of software bugs. Some of alert could resolve after restarting the system, software update/reinstall. To fix some of alerts, car might need hardware repair.
3.1 Restart System
Some of alert could resolve after restarting the touchscreen or power of the car.
Restart Touchscreen
Firstly, you could try with soft reset (restart touchscreen)
How to restart soft reset (restart touchscreen)
- Please shift car into park.
- Hold down both scroll buttons on the steering wheel until the touchscreen turns black.
- Please wait approximately 30 seconds for the touchscreen to restart.
Please read more details in another guide (how to do). Link
Powering Off the Car
If soft reset (restart touchscreen) have not resolved the alert/issue. You could try hard reset (Powering Off the car).
- Please shift car into park
- On the touchscreen please touch Controls > Safety > Power Off
- Please wait for at least for two minutes without interacting with the car. Please do not open the doors, touch the brake pedal, touch the touchscreen etc.
- After 2 minutes, please press the brake pedal or open the door to wake the car (Source Tesla)
3.2 Software issue
Some of alert could be related to software issue.
Software Bug and Glitches
One of reason could be problem with software bug and glitches. Did you get this alert after updating recent software version? If yes, it could be related with software bug and could resolve with future software update. Please send us Service Alert screenshot. So we will inform you if it could be related to software bug. Link
Firmware not updated
One of main reasons could be that firmware is not updated. Have you checked recent update and updated to recent version? If not, we recommend you to do that. Please read more details in another guide. Link
Hardware Issue
There could be some hardware issue/faulty.
Recent Repair/Service
Did this alert pop up after recent repair/service? If yes, please let us know which repair/service was done recently. Some alerts could pop up if repair/service is not done in proper way. If system/alert has not be reset. Did you use aftermarket/used part?
4. BMS Alert codes
Depend on Alert/Warning/Fault Code, car need to be repaired/serviced. Please contact us if you need any support.
Some of most common BMS alert code
4.1 Isolation Alerts
There could be internal or external isolation.
Possible code: BMS_a035_SW_Isolation, BMS_a151_SW_external_isolation, BMS_a123
Internal Isolation
In case if you have internal isolation (possible alert code BMS_a123). Please read more details in another guide. Link
External Isolation
Please check out more details about External Isolation (possible alert code BMS_w035) in another guide (How to fix, Cost, best workshop to fix it, online support etc). Link
4.2 Acceleration and top speed reduced
Possible Code: BMS_a170, BMS_u008,
Please check out more details in another guide (How to fix, Cost, best workshop to fix it, online support etc). Link
4.3 Maximum battery charge level reduced
Possible code: BMS_u018
Please check out more details in another guide (How to fix, Cost, best workshop to fix it, online support etc). Link
4.4 Maximum Charge Level and Range Reduced
Please check out more details in another guide (How to fix, Cost, best workshop to fix it, online support etc). Link
4.5 Power Limited - OK to drive
Please check out more details in another guide (How to fix, Cost, best workshop to fix it, online support etc). Link
4.6 Unable to Drive
Please check in another guide for more details. Link
4.7 Unable to Charge
Please check in another guide for more details. Link
4.8 Vehicle may not restart
Please read more details in another guide. Link
4.9 BMS_w107
Please check out more details in another guide. Link
Cost
Cost could vary depend on issue, type of workshop, location. If you are looking for online support or affordable independent workshop, who is expert fixing BMS Alerts. Please free to contact us or have a look in Price List
Online Support
In case, if you have any question or need any support/help. Please feel to contact us Contact Us or Whats App +49 (0) 15226242038
Where can I fix?
It could be possible to only fix at particular workshop who has knowledge/expertise about Tesla/Electric Cars. There are some independent workshop who are good and offer repair services with affordable prices. If you are looking. Please free to contact us.
If its possible, we could also offer online support.
Find, compare and Book workshop to Fix BMS Alert
If are you looking for best workshop who is expert to fix such issue with good price. Please contact us we will be happy to organize an appointment with workshop or find, compare and book best workshop in Workshop Locator
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BMS Alert/Fault/Warning Code
a stands for Alert, f stands for Fault and w Stands for Warning
BMS_u018
BMS_u029
Buy New/Used Spare Parts
If you would like to buy spare parts. Please have a look in our catalog or Contact Us Phone/Whats App +49(0)15226242038
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For Repair Workshop Owner
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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.
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FAQ
1. Can I reset Alert?
It is recommended to fix alert with ASAP.
2. Is it possible to repair BMS?
Yes, its possible
3. Who can repair BMS?
Please contact us. We will let you know.
