2023 Mack Terrapro (MRU): common problems
The maker issued 27 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 27
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 0 | 0 | 10 |
| Powertrain | 0 | 0 | 10 |
| Electrical system | 0 | 0 | 6 |
| Suspension | 0 | 0 | 3 |
| Fuel system | 0 | 0 | 1 |
| Structure | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- CBR
Diagnostic Trouble Code (DTC) P107471 -AMT-F
- CBR
Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
- CBR
Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During…
- Service Campaign
Mack trucks has determined that certain AN, GR, PI, and TE model trucks built with a MP8 engine could experience a reduced clamping load on the turbocharger mounting hardware causing the hardware to become loose. On…
- CBR
Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head.
- CBR -Telematics Gateway (TGW) Connect Ability Issues
- CBR - Active "Set Park Brake" Message On Drivers Information Display (DID)
- CBR - Diagnostic Trouble Code (DTC) P107471 - AMT-F
- CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft
- CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built…
- CBR
TGW Will Not Connect After SIM Card Replacement
- CBR
NHTSA lists 27 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 2023 Mack Terrapro (MRU)?
There are no owner complaints in the NHTSA data for this year; the data comes from 27 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2023 Mack Terrapro (MRU)?
NHTSA lists 27 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 2023 Mack Terrapro (MRU) 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 2023 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.