Mack Pinnacle (pi/pn): problems, complaints, bulletins
Summary for the Mack Pinnacle (pi/pn) across 12 model years: 0 owner complaints and 341 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 0 | 0 | 438 |
| Electrical system | 0 | 0 | 313 |
| Powertrain | 0 | 0 | 220 |
| Engine | 0 | 0 | 149 |
| Equipment | 0 | 0 | 108 |
| Suspension | 0 | 0 | 78 |
| Fuel system | 0 | 0 | 77 |
| Service brakes | 0 | 0 | 65 |
| Fuel/propulsion system | 0 | 0 | 24 |
| Vehicle speed control | 0 | 0 | 24 |
| Structure | 0 | 0 | 23 |
| Wheels | 0 | 0 | 16 |
| Steering | 0 | 0 | 13 |
| Exterior lighting | 0 | 0 | 11 |
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.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Parker engine-mounted hydraulic pump service bulletin
- Mack Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument…
- Mack Trucks has determined that certain vehicles equipped with a model year (“MY”) 2017-2018 MP8 Turbo…
- The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86…
- CBR - Mack Chassis - Dash Panel Cracking at Mounting to BIW
- CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers
- CBR - Mack Carrier Nut Adhesive Change
- CBR - Z Spring Bracket Wear
- CBR - Parker F3 Hydraulic Pump Troubleshooting
- CBR - No Start Condition After Over the Air Programing
- SC - Mack Trucks has determined that certain Mack sleeper cab assemblies were possibly manufactured with…
- SC - Mack Trucks has determined that a select group of trucks were built with an AHI Module fuel pressure…
Other models of this make
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.