2021 Mack Lrbe (electric) TSBs
39 Technical Service Bulletins across 8 categories
Categories
Electrical
16 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 1 Heater Relay Monitoring Accessory Kit
Battery Electric Vehicle (BEV) - Diagnostic Trouble Code (DTC) Troubleshooting Ending In No Fault Found
Battery Electric Vehicle (BEV) Post Programing Faults
CBR: Battery Electric Vehicle (BEV) Sub Hardware Programming
CBR: Battery Electric Vehicle (BEV) Cab Heater Diagnostics
Other
11 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
Electromobility Required Special Tools
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
Suspension
3 bulletinsFrame lean can be caused by several seemingly isolated possibilities.
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The two most common are suspension and frame assembly issues.
Hub Cap, Leaking
New TSB- Hub cap leaking
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
Infotainment
2 bulletinsCBR: Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
CBR - Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
Pre-Delivery & Maintenance
2 bulletinsCBR - Accelerator Pedal: Inspection Instructions
Service Literature Published and Released in May, 2023
Engine
2 bulletinsCBR: Battery Electric Vehicle (BEV) 3-WayValve Calibration Failure
Barksdale Leveling Valve, Leak Test
HVAC & Climate
1 bulletinAir 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.