2020 Mack Lrbe (electric): common problems

The maker issued 20 service bulletins for this year. Details by component below, with sources.

Key figures

Technical service bulletins (TSB): 20

Components owners complain about

Component	Owner complaints	involving a crash	Technical service bulletins (TSB)
Electrical system	0	0	12
Powertrain	0	0	5
Equipment	0	0	2
Service brakes	0	0	2
Suspension	0	0	2
Vehicle speed control	0	0	1
Other	0	0	1

Comparison

What to check before buying

Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Suspension. Wheel alignment, control arms, subframe, even tire wear.

Manufacturer service bulletins

Bulletin titles as filed with NHTSA.

received by NHTSA in 2025–2026 · № 11032092 · Powertrain CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers
received by NHTSA in 2025–2026 · № 11032086 · Powertrain CBR - Mack Carrier Nut Adhesive Change
received by NHTSA in 2025–2026 · № 11021333 · Service brakes CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded
received by NHTSA in 2025–2026 · № 11021332 · Electrical system CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office…
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
received by NHTSA in 2025–2026 · № 11018819 · Electrical system Battery Electric Vehicle (BEV) - DTC P109D8A Following Energy Storage Control Module (ESCM) Software Update
received by NHTSA in 2025–2026 · № 11012156 · Suspension Frame lean can be caused by several seemingly isolated possibilities
The two most common are suspension and frame assembly issues.
received by NHTSA in 2020–2024 · № 11008366 · Service brakes CBR
To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
received by NHTSA in 2020–2024 · № 11005410 · Electrical system CBR
Telematics Gateway (TGW) Connect Ability Issues
received by NHTSA in 2020–2024 · № 11003042 · Electrical system CBR - Accelerator Pedal
Inspection Instructions
received by NHTSA in 2020–2024 · № 10249554 · Electrical system CBR
Battery Electric Vehicle (BEV) 3-WayValve Calibration Failure
received by NHTSA in 2020–2024 · № 10249553 · Electrical system CBR
TGW Will Not Connect After SIM Card Replacement
received by NHTSA in 2020–2024 · № 10241946 · Suspension TSB
Barksdale Leveling Valve, Leak Test

NHTSA lists 20 bulletins for this year; the 12 newest are shown here.

Other years of this model

Questions and answers

What are the most common problems with the 2020 Mack Lrbe (electric)?

There are no owner complaints in the NHTSA data for this year; the data comes from 20 manufacturer service bulletins.

How many service bulletins (TSB) were issued for the 2020 Mack Lrbe (electric)?

NHTSA lists 20 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2020 Mack Lrbe (electric) from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2020 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.