2017 Mack Pinnacle (pi/pn): common problems

The maker issued 16 service bulletins for this year. Details by component below, with sources.

Key figures

Technical service bulletins (TSB): 16

Components owners complain about

Component	Owner complaints	involving a crash	Technical service bulletins (TSB)
Engine	0	0	8
Electrical system	0	0	4
Powertrain	0	0	3
Fuel/propulsion system	0	0	2
Service brakes	0	0	1
Suspension	0	0	1
Vehicle speed control	0	0	1

Comparison

What to check before buying

Engine. Cold start, unusual noises, oil leaks and engine codes.
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/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.

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 · № 11029451 · Engine Emissions - Mack Trucks has determined that certain vehicles equipped with a model year (“MY”) 2017-2018…
Emissions - Mack Trucks has determined that certain vehicles equipped with a model year (“MY”) 2017-2018 MP7 engine may not meet California and Federal Regulations (CARB).
received by NHTSA in 2025–2026 · № 11028051 · Vehicle speed control CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise
US07 And Newer Emissions, Model Year 2008 And Newer.
received by NHTSA in 2025–2026 · № 11028032 · Engine CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT…
CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4) and PR(4)).
received by NHTSA in 2025–2026 · № 11026025 · Electrical system CBR - Mack Temperature Sensor Troubleshooting Guide
received by NHTSA in 2025–2026 · № 11021333 · Electrical system 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 · № 11018816 · Powertrain Mack Chassis - Rear Axle Overheat
received by NHTSA in 2025–2026 · № 11018813 · Engine Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
received by NHTSA in 2025–2026 · № 11018806 · Fuel/propulsion system Vehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important…
Vehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important Information On Approved Filters - US17+OBD16 toUS21+OBD23
received by NHTSA in 2025–2026 · № 11018804 · Engine Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low…
Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low Oil Pressure) (Possible Related Codes - SPN4811 , SPN 100 , PID 100)

NHTSA lists 16 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 2017 Mack Pinnacle (pi/pn)?

There are no owner complaints in the NHTSA data for this year; the data comes from 16 manufacturer service bulletins.

How many service bulletins (TSB) were issued for the 2017 Mack Pinnacle (pi/pn)?

NHTSA lists 16 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 2017 Mack Pinnacle (pi/pn) 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 2017 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.