RoadVitals

2025 Bollinger Motors B4

Recalls, owner-reported complaints, investigations and safety data

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
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Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
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Latest Apr 1, 2025
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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Overview

Our database contains no NHTSA owner-reported complaints for the 2025 Bollinger Motors B4. 1 safety recall has been issued covering this model year; and 3 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Safety recalls

1 campaign cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

Apr 1, 2025
17 units potentially affected
The defect: Bollinger Motors, Inc. (Bollinger Motors) is recalling certain 2025 B4 trucks. The high voltage battery pack may be improperly sealed and allow liquid to enter the battery.
The risk: Liquid intrusion into a battery pack can cause a loss of electrical isolation or short circuit, increasing the risk of a fire or shock hazard. In addition, the detection of a battery fault can cause a loss of drive power, increasing the risk of a crash.
The remedy: Bollinger Motors will work with Our Next Energy to inspect and repair the battery packs as necessary, free of charge. Owners can contact Bolling Motors at 586-785-7351.
Bollinger Motors, Inc.View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

No owner complaints recorded for this model year

Either none have been filed with NHTSA, or this vehicle is too new for reports to have accumulated.

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

TSB-725-01

ELECTRICAL SYSTEM; POWER TRAIN

Service action for removing CAN Bus resistors, cleaning & preventing DC to DC converter 12-volt cable corrosion, improving the location and visibility of the First Responders Cut Loop Labels, and improving the Motor Control Unit (MCU) high voltage cable dual clamp cable-ties locations.

TSB-0625-02

FUEL/PROPULSION SYSTEM; POWER TRAIN

The updated VCU software includes enhancements for 12V and high-voltage battery conditioning, as well as resolving issues with incorrectly stored faults. The revised TCU software enhances the thermal management system and eliminates erroneously stored faults. The updated OTA software enables TCU and BMS diagnostics to be reported over the air. Additionally, the improved BMS software enhances fault detection and decreases the overall time required for cell balancing.

TSB-0425-01

POWER TRAIN

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.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.