2024 Mack Lrbe (electric) TSBs
33 Technical Service Bulletins across 9 categories
Categories
Electrical
12 bulletinsCBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a...
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Critical failure, the vehicle will remain in Safe State.
CBR - Mack Trucks has identified that certain LRBe model trucks may have an undersized fuse used in the coolant pump...
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circuit.
Battery Electric Vehicle (BEV) - DTC P109D8A Following Energy Storage Control Module (ESCM) Software Update
Mack Chassis - Battery Electric Vehicle (BEV) Cab Heater Diagnostics.
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Fault code C102571 and C102572 can be a result of insufficient coolant flowthrough the cab heater system.
CBR: Battery Electric Vehicle (BEV) Faults When Charging
CBR: Battery Electric Vehicle (BEV) DTCP108664 - Charging Switch Unit B, Voltage Supply, Signal Plausibility Failure
CBR - Battery Electric Vehicle (BEV) Post Programing Faults
CBR: Battery Electric Vehicle (BEV) DTC P108664 - Charging Switch Unit B, Voltage Supply, Signal Plausibility Failure
CBR - BEV Fault Code C102571 - Hybrid/EV System, Cooling Heater Relays - Actuator Stuck
CBR: Battery Electric Vehicle (BEV) - Hybrid Powertrain Control Unit (HPCU) Programing
CBR: Battery Electric Vehicle (BEV) - Diagnostic Trouble Code (DTC) Troubleshooting Ending In No Fault Found
Service Campaign: Phase 2 Heater Relay Monitoring Accessory Kit
Other
9 bulletinsCBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
CBR - Mack Carrier Nut Adhesive Change.
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication...
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but failing to transmit GPS location data.
CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
CBR: Telematics Gateway (TGW) Connect Ability Issues
CBR: There has been a rise in questions regarding (DTC) - P11561A, P11571A, P115684, P115784 due to the limited amount...
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of diagnostic information available.
CBR: TGW Will Not Connect After SIM Card Replacement
CBR: Active DTC P0A6649, P08F049, OR P0A5D49 fault code with ambient temperatures lower than 20C / 68F
Engine
3 bulletinsIt has been identified that the crossbar on the cooling package crash structure is indirect contact with the static coolant fill hose.
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This interference creates a risk of hose chafing, which may result in coolant leakage over time.
Service Campaign: LR Power Steering Assist Cylinder Castle Nut Torque
CBR: Battery Electric Vehicle (BEV) 3-WayValve Calibration Failure
Transmission
2 bulletinsCertain BEV vehicles may present one or more of the symptoms below: Vehicle Turns On but wont start Vehicle will not...
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go into any gear Cluster and Gear Selector display show neutral after a gear is selected, but the vehicle does select and moveForward/Reverse Truck is limited to fi rst gear when Forward is selected Speed limited to ~25 MPH (~40 KPH) Low Power Truck will not charge
CBR: Battery Electric Vehicle (BEV) - Vehicle Will Not "Start", Limited Speed, Instrument Cluster Showing Neutral After...
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Gear Selected
HVAC & Climate
2 bulletinsAir compressors may be observed cycling continuously at intervals of 10 to 30 seconds.
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This behavior persists even when no air leaks are present in the system.
SC - Mack Phase 2 Heater Update
Infotainment
2 bulletinsCBR: Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
CBR - Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
Suspension
1 bulletinFrame lean can be caused by several seemingly isolated possibilities.
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The two most common are suspension and frame assembly issues.
Pre-Delivery & Maintenance
1 bulletinCBR - Accelerator Pedal: Inspection Instructions
Brakes
1 bulletinCBR - Brake Caliper Concerns And Premature Brake Pad Wear - Model Year 2023 - 2024