2016 Mack LR6: common problems
The maker issued 87 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 87
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 0 | 0 | 50 |
| Electrical system | 0 | 0 | 16 |
| Powertrain | 0 | 0 | 16 |
| Equipment | 0 | 0 | 7 |
| Fuel system | 0 | 0 | 3 |
| Suspension | 0 | 0 | 3 |
| Service brakes | 0 | 0 | 2 |
| Vehicle speed control | 0 | 0 | 2 |
| Electronic stability control | 0 | 0 | 1 |
| Engine | 0 | 0 | 1 |
| Exterior lighting | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
| Other | 0 | 0 | 7 |
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- 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.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- 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…
- CBR -Telematics Gateway (TGW) Connect Ability Issues
- CBR - Active "Set Park Brake" Message On Drivers Information Display (DID)
- 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
- Emissions Campaign
Mack Trucks has determined that certain 2014 - 2018 commercial model year CXU, GU, LEU, LR, MRU Vehicles require a replacement Diesel Particulate Filter (DPF) along with updated software.
- TSB
Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
- TSB
Barksdale Leveling Valve, Leak Test
- CBR
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
- CBR
Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
- Service Literature Published and Released in May, 2023
NHTSA lists 87 bulletins for this year; the 12 newest are shown here.
Questions and answers
What are the most common problems with the 2016 Mack LR6?
There are no owner complaints in the NHTSA data for this year; the data comes from 87 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2016 Mack LR6?
NHTSA lists 87 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 2016 Mack LR6 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 2016 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.