NHTSA ID Number: 11016921
Manufacturer Communication Number: TSB-0425-01
TSB/Document Date: 2025-04-09
Summary
Bulletin Title: Update the Vehicle Control Unit (VCU), Thermal Control Unit (TCU), and Telematics Module Unit (TMU) software to the latest version. Symptom: The existing VCU and TCU software may cause various fault codes to be stored in the vehicle's fault memory. The TMU does not currently support WiFi connection capability. Discussion: If equipped, the updated VCU software adds ePTO enhancements, improvements to 12V and high-voltage battery
conditioning, and eliminates erroneously stored faults. The TCU software improves the thermal management system and eliminates erroneously stored faults. The TMU software adds WiFi connection capability to the vehicle.
Technical Service Bulletin (“TSB”)
Release Date: 04/02/2025
Bulletin Title: Vehicle Control Unit (VCU), Thermal Control Unit (TCU), and Telematics Module Unit (TMU)
Software Update
Bulletin Number:
TSB-0425-01
Subject: Vehicle Control Unit (VCU), Thermal Control Unit (TCU), Telematics Module Unit (TMU), and Direct
Current / Direct / Current (DC/DC) software update.
Affected Vehicle & Model Information
Make: Bollinger
Model: B4
Year: 2025
Production Date Range: 09/27/2024 to 11/21/2024
VIN(s):
7WE45CN57SL000038
7WE45CN52SL000027
7WE45CN52SL000058
7WE45CN5XSL000034
7WE45CN52SL000044
7WE45CN58SL000033
7WE45CN51SL000052
7WE45CN50SL000060
7WE45CN59SL000025
7WE45CN53SL000022
7WE45CN50SL000057
7WE45CN50SL000043
7WE45CN59SL000056
7WE45CN59SL000039
7WE45CN58SL000047
7WE45CN53SL000053
7WE45CN54SL000045
7WE45CN53SL000070
7WE45CN57SL000041
7WE45CN57SL000024
7WE45CN54SL000062
7WE45CN54SL000029
7WE45CN55SL000040
7WE45CN55SL000023
7WE45CN55SL000054
7WE45CN57SL000069
7WE45CN55SL000071
7WE45CN59SL000073
7WE45CN57SL000055
7WE45CN56SL000046
7WE45CN59SL000042
7WE45CN57SL000072
Bulletin Description: Update the Vehicle Control Unit (VCU), Thermal Control Unit (TCU), and Telematics
Module Unit (TMU) software to the latest version.
Symptom: The existing VCU and TCU software may cause various fault codes to be stored in the vehicle's
fault memory. The TMU does not currently support WiFi connection capability.
Discussion: If equipped, the updated VCU software adds ePTO enhancements, improvements to 12V and
high-voltage battery conditioning, and eliminates erroneously stored faults. The TCU software improves the
thermal management system and eliminates erroneously stored faults. The TMU software adds WiFi
connection capability to the vehicle.
Disclaimer and Confidentiality Notice
These bulletins are intended solely for use by professional technicians with the appropriate training, tools, and safety knowledge to perform service and
maintenance accurately and safely. They provide essential information on potential conditions that may affect specific vehicles or offer guidance for correct
service procedures.
If a condition is described, please do not assume it applies to all vehicles. To determine whether a specific vehicle may benefit from this information, consult
your authorized Bollinger Motors dealer.
This document and its contents are confidential and intended for limited distribution. The information herein may be subject to change. For the latest and
most accurate version, refer to the Bollinger Motors Dealer Portal.
Labor Operation: 1015.1060 General Purpose Labor Time
Labor Time Allocation: 1.0 hour
Parts Required:
Quantity
Part Number
Part Group
Description
1
S102793D
Electrical Controls
VCU Software Update:
Primary from Software Ver: 8.2.0.0.0 to 8.6.0.0.0
Secondary from Software Ver: 2.0.0.0.0 to 2.1.2.0.0
Quantity
1
Part Number
S0102807B
Part Group
Electrical Controls
Description
TCU Software Update:
From Software Ver: 9.2.0.1.0 to 9.6.0.0.0
Quantity
1
Part Number
S069119D
Part Group
Electrical Controls
Description
TMU Software Update:
From Software Ver: 24.42.6.0 to 25.7.6.0
Quantity
1
Part Number
S051955C
Part Group
Electrical Controls
Description
DC/DC Software Update:
Check and update the following
• BM: 3.6.0.1
• FBL: 3.6.2.1
• APP: 3.6.7.1
• CFG: 3.6.3.1
Bulletin Repair Procedure Details
Disclaimer and Confidentiality Notice
These bulletins are intended solely for use by professional technicians with the appropriate training, tools, and safety knowledge to perform service and
maintenance accurately and safely. They provide essential information on potential conditions that may affect specific vehicles or offer guidance for correct
service procedures.
If a condition is described, please do not assume it applies to all vehicles. To determine whether a specific vehicle may benefit from this information, consult
your authorized Bollinger Motors dealer.
This document and its contents are confidential and intended for limited distribution. The information herein may be subject to change. For the latest and
most accurate version, refer to the Bollinger Motors Dealer Portal.
1. Verify the low voltage battery state of the charge is 12 volts or higher with the main battery switched off.
2. Verify the vehicle voltage before starting the update process and monitor it throughout.
3. Update the Software Version for VCU TCU, check the software, and update the DC-DC converter as
outlined in this technical bulletin
The update sequence includes the following steps:
a. Connect the breakout OBD cable to the OBD port in the vehicle.
b. Ensure the breakout OBD harness is connected to the Vector CAN Case.
c. Connect the Vector CAN Case to the USB port on the laptop. Ensure the Bollinger Motors laptop is
connected to a power supply
d. Connect the laptop to the internet using either a Wi-Fi connection
e. Start a Microsoft Teams connection on the laptop with the Bollinger Motors Software personnel
f. Allow Remote Control access to the laptop.
g. Power up the vehicle (Key in --> ACC --> RUN).
h. Wait for directions from the Bollinger Motors Software personnel to cycle the vehicle (Turn ignition
OFF, wait 60 seconds, and Turn ignition ON).
4. Update the Software Version for TCU as outlined in this technical bulletin.
The update sequence includes the following steps:
a. Connect the breakout OBD cable to the OBD port in the vehicle.
b. Make sure the breakout OBD harness is connected to the KVaser tool.
c. Connect the KVaser tool to the USB port on the laptop. Ensure the Bollinger Motors laptop is
connected to a power supply
d. Connect the laptop to the internet using either a WiFi connection
e. Start a Microsoft Teams connection on the laptop with the Bollinger Motors Software personnel
f. Allow Remote Control access to the laptop.
g. If not powered, power up the vehicle (Key in--> ACC--> RUN).
h. Wait for directions from the Bollinger Motors Software personnel to cycle the vehicle (Turn OFF, wait
60 seconds, and Turn ignition ON).
5. Over the Air, update the Software Version for TMU as outlined in this technical bulletin.
The update sequence includes the following steps:
a. If not powered, power up the vehicle (Key in--> ACC--> RUN).
b. Wait for directions from the Bollinger Motors Software personnel to cycle the vehicle (Turn OFF,
wait 60 seconds, and Turn ignition ON).
Post-Repair Actions
1. Verification: Check if warning telltales are illuminated in the cluster. Verify that the vehicle can charge
(slow/fast). Ensure that the vehicle can start in Ready mode.
2. Documentation: Refer to TSB
Disclaimer and Confidentiality Notice
These bulletins are intended solely for use by professional technicians with the appropriate training, tools, and safety knowledge to perform service and
maintenance accurately and safely. They provide essential information on potential conditions that may affect specific vehicles or offer guidance for correct
service procedures.
If a condition is described, please do not assume it applies to all vehicles. To determine whether a specific vehicle may benefit from this information, consult
your authorized Bollinger Motors dealer.
This document and its contents are confidential and intended for limited distribution. The information herein may be subject to change. For the latest and
most accurate version, refer to the Bollinger Motors Dealer Portal.
3. Warranty Submission: To submit the warranty, claim for this technical service bulletin, select Dealer
Stock Unit (not PDI) as the Service Type on the claim. Select Complaint, Cause, Corrective Action, and
add descriptions. Attach a copy of the TSB and the repair order to the claim.
4. Please use labor operation -General Purpose Labor Time-1015.1060. Labor Time-1.0.
Disclaimer and Confidentiality Notice
These bulletins are intended solely for use by professional technicians with the appropriate training, tools, and safety knowledge to perform service and
maintenance accurately and safely. They provide essential information on potential conditions that may affect specific vehicles or offer guidance for correct
service procedures.
If a condition is described, please do not assume it applies to all vehicles. To determine whether a specific vehicle may benefit from this information, consult
your authorized Bollinger Motors dealer.
This document and its contents are confidential and intended for limited distribution. The information herein may be subject to change. For the latest and
most accurate version, refer to the Bollinger Motors Dealer Portal.
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TSB/Document ID: TSB-0425-01
Replacement Service Bulletin Number:
MFR Communication Date: 2025-04-02
MFR Internal Campaign ID/Software Version: S102793D, S0102807B, S069119D, S051955C
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System: VCU TCU
MFR Component Subsystem:
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