Tesla "Acceleration and top speed reduced" Guide to fix

Tesla "Acceleration and top speed reduced" Guide to fix

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 could cost to fix the alert, 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. You could also buy new and used spare parts with best price etc.

You might get this alert together some of other alerts.

Tesla "Acceleration and top speed reduced" How to fix

2. How to Diagnose

This alert could come because of one or more system/feature is disabled/faulty. It need to check additional alerts to find out the cause of this alert.

It could be possible to find out the exact cause via Remote Diagnosis, Service Mode.

2.1 How to check additional alert

It could be possible to find out exact cause via Remote Diagnosis, Service Mode. In case, you need support for diagnosis. Please contact 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.

2.3 Service Mode

It could be possible to do self diagnose via Service Mode.

How to read service alerts in Service Mode

  • On the touchscreen, click Controls > Software
  • Touch and hold the large word "MODEL" for 2 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 diagnosis) Link

In case, If you need support for diagnosis. Please Connect Us.

If you need support. 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 affordable workshop.

Depend on alert/fault code, car might need to be repaired/serviced.

3. How to Fix

External Isolation Repair

Did you get following alerts together

  • BMS_u008 and BMS_a027
  • BMS_u008 and BMS_w172
  • BMS_a170 and BMS_a027

It could be issue with external isolation. Please read more details in another guide. Link

BMS_a170 BMS_a027 Tesla "Acceleration and top speed reduced" Guide to fix
BMS_u008 BMS_w172 Tesla "Acceleration and top speed reduced" Guide to fix

3.1 High Voltage Circuit Integrity check

might need to check High Voltage Circuit Integrity.

3.2 A/C Compressor

One of reason could be issue with compressor. Please check out more details about about A/C Compressor repair (How to diagnose, cost, buy compressor with best price - new, used, how to repair, labor cost to replace etc). Link

3.3 Drive Unit

In most of cases, issue could be with Drive Unit Inverter.

Please check out more details about about Drive Unit repair. Link

3.4 Drive Unit Inverter

4. Cost

Cost could vary depend on issue, type of workshop, location. If you are looking for online support or affordable independent workshop. Please free to contact us or have a look in Price List

5. Online Support

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.

6. Find, compare and Book workshop to Fix it

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

7 Alert Code

Possible alert code

1. BMS_u008

Tesla "Acceleration and top speed  reduced" BMS_u008 How to Fix

2. BMS_a170_SW_Limp_Mode

Tesla BMS_a170 Top Speed and acceleration reduced guide to fix it
Tesla BMS_a170_SW_Limp_Mode how to fix

8. Book an Appointment

If you would like to book an appointment.

Book an Appointment to Fix an affordable Workshop

9. Buy New/Used Spare Parts

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

Donation/Support

If you feel you have benefited from this guide. Please consider donation, which will help us to create more such free guide for you. It will also show us that this guide was helpful for you. Click on "Donation"

For Repair Workshop Owner

If you car repair 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

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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? Still appearing alert: Please free to Contact Us. We will be happy to provide you online support. Phone/Whats App +49(0)15226242038

 

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Disclaimer: Tesla, Inc. was not involved in the creation of this document. Tesla did not provide us any info. Tesla did not edit, review or authorize us. We gather this information from Tesla official website and other resources.

Note: It is your responsibility to double check and confirm that the procedures/info mentioned in this blog are applicable to your specific car before performing them. Please contact us or our workshop partner to make sure/confirm. We will be happy to help you.