AI Damage2026 Mack MD (electric): common problems
The maker issued 9 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 9
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 7 |
| Powertrain | 0 | 0 | 2 |
| Service brakes | 0 | 0 | 1 |
| Structure | 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.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Certain MMDe model Mack trucks were assembled without fuse and relay center labels
- The current MD electric cooling box mounting blocks access to the radiator drain
This procedure gives the instructions to gain access to the radiator drain.
- CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers
- CBR - Mack Carrier Nut Adhesive Change
- CBR - Mack Chassis - MDe Instrument Cluster(IC) Nuisance Popup Message
- CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job…
CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a Critical failure, the vehicle will remain in Safe State.
- 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…
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
- Mack Trucks has identified that certain MDe model trucks may have complications with the instrument…
Mack Trucks has identified that certain MDe model trucks may have complications with the instrument cluster displaying a message requesting the truck be shifted into neutral when the driver’s door is opened, and the…
Other years of this model
Questions and answers
What are the most common problems with the 2026 Mack MD (electric)?
There are no owner complaints in the NHTSA data for this year; the data comes from 9 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2026 Mack MD (electric)?
NHTSA lists 9 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 2026 Mack MD (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 2026 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 2026-11-04.