2013 Mack Pinnacle (cxu) Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2013 Mack Pinnacle (cxu), grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Driver assistance120.0%
- Electrical120.0%
- Engine120.0%
- Fuel system120.0%
- Powertrain (other)120.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
WE HAD AN ISSUE WITH THIS TRUCK AND THE M-DRIVE TRANSMISSION WHEN THE DRIVE WAS COMING OF A HIGHWAY ON AN EXIT RAMP HE WAS SLOWING DOWN AND THE VEHICLES CLUTCH STAYED ENGAGED AND THE DRIVER ROLLED INTO THE INTERSECTION ALMOST HITTING A CAR. THE VEHICLES CLUTCH IS AUTOMATICALLY DISENGAGES WHEN YOU PUSH ON THE BRAKE WHILE THE CLUTCH DIDN'T DISENGAGE BECAUSE WHEN OF THE BRAKE LIGHT WIRES HAD DEVELOPED A CORROSION SPOT FROM THE WINTER WEATHER AND SHORTED OUT THE LIGHT AND CAUSED THE FUSE TO BLOW. THE BRAKE LIGHTS ARE WHAT TELLS THE CLUTCH TO DISENGAGE BUT WITH THE FUSE BEING BLOWN THE CLUTCH DID NOT DISENGAGE AND KEPT ROLLING INTO INTERSECTION LUCKILY MY DRIVER WAS SMART ENOUGH TO REACH UP AND PUSH NEUTRAL BUTTON ON DASH TO PUT TRANSMISSION IN NEUTRAL AND STOP THE TRUCK. ALSO IN OUR INVESTIGATION WE FOUND WHEN THE FUSE BLOWS FOR THE BRAKE LIGHTS THE CRUISE CONTROL WILL NOT SHUT OFF BY TAPPING THE BRAKES YOU HAVE TO MANUALLY SHUT IT OFF BY THE SWITCH I HAVE NO PHOTOS AS NOTHING SERIOUSLY HAPPENED MY MECHANIC CHANGED THE FUSE ON THE ROAD AND FOUND THE CORRODED WIRE. MACK SHOULD HAVE A BETTER SOLUTION THAN USING BRAKE LIGHTS TO DISENGAGE THESE CONTROLS
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
WE HAD AN ISSUE WITH THIS TRUCK AND THE M-DRIVE TRANSMISSION WHEN THE DRIVE WAS COMING OF A HIGHWAY ON AN EXIT RAMP HE WAS SLOWING DOWN AND THE VEHICLES CLUTCH STAYED ENGAGED AND THE DRIVER ROLLED INTO THE INTERSECTION ALMOST HITTING A CAR. THE VEHICLES CLUTCH IS AUTOMATICALLY DISENGAGES WHEN YOU PUSH ON THE BRAKE WHILE THE CLUTCH DIDN'T DISENGAGE BECAUSE WHEN OF THE BRAKE LIGHT WIRES HAD DEVELOPED A CORROSION SPOT FROM THE WINTER WEATHER AND SHORTED OUT THE LIGHT AND CAUSED THE FUSE TO BLOW. THE BRAKE LIGHTS ARE WHAT TELLS THE CLUTCH TO DISENGAGE BUT WITH THE FUSE BEING BLOWN THE CLUTCH DID NOT DISENGAGE AND KEPT ROLLING INTO INTERSECTION LUCKILY MY DRIVER WAS SMART ENOUGH TO REACH UP AND PUSH NEUTRAL BUTTON ON DASH TO PUT TRANSMISSION IN NEUTRAL AND STOP THE TRUCK. ALSO IN OUR INVESTIGATION WE FOUND WHEN THE FUSE BLOWS FOR THE BRAKE LIGHTS THE CRUISE CONTROL WILL NOT SHUT OFF BY TAPPING THE BRAKES YOU HAVE TO MANUALLY SHUT IT OFF BY THE SWITCH I HAVE NO PHOTOS AS NOTHING SERIOUSLY HAPPENED MY MECHANIC CHANGED THE FUSE ON THE ROAD AND FOUND THE CORRODED WIRE. MACK SHOULD HAVE A BETTER SOLUTION THAN USING BRAKE LIGHTS TO DISENGAGE THESE CONTROLS
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
MACK/VOLVO MP8/D-13 INJECTORS: MACK TRUCKS EQUIPPED WITH THE MP8 ENGINES HAVE A KNOWN INJECTOR ISSUE THAT CAUSES THE TRUCK TO 1) MIS-FIRE AT ROAD SPEED CREATING A LOSS OF POWER. 2) INJECTOR FAILURE CAUSES EXCESSIVE SOOT CAUSING ON-ROAD FAILURES.3) THE TRUCK MAY NOT BE RESTARTED OR ABLE TO BE MOVED DUE TO EXCESSIVE CRANKING DUE TO INJECTOR FAILURE. 4) TRUCKS NEED TO BE TOWED TO A REPAIR FACILITY WHEN BREAKDOWN OCCURS. WE OWN MULTIPLE UNITS. THIS INJECTOR FAILURE ISSUE HAS BEEN DOCUMENTED ON MAJORITY OF TRUCKS. DOCUMENTS ARE AVAILABLE. PLEASE HAVE AN INVESTIGATOR CONTACT ME.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
MACK/VOLVO MP8/D-13 INJECTORS: MACK TRUCKS EQUIPPED WITH THE MP8 ENGINES HAVE A KNOWN INJECTOR ISSUE THAT CAUSES THE TRUCK TO 1) MIS-FIRE AT ROAD SPEED CREATING A LOSS OF POWER. 2) INJECTOR FAILURE CAUSES EXCESSIVE SOOT CAUSING ON-ROAD FAILURES.3) THE TRUCK MAY NOT BE RESTARTED OR ABLE TO BE MOVED DUE TO EXCESSIVE CRANKING DUE TO INJECTOR FAILURE. 4) TRUCKS NEED TO BE TOWED TO A REPAIR FACILITY WHEN BREAKDOWN OCCURS. WE OWN MULTIPLE UNITS. THIS INJECTOR FAILURE ISSUE HAS BEEN DOCUMENTED ON MAJORITY OF TRUCKS. DOCUMENTS ARE AVAILABLE. PLEASE HAVE AN INVESTIGATOR CONTACT ME.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
WE HAD AN ISSUE WITH THIS TRUCK AND THE M-DRIVE TRANSMISSION WHEN THE DRIVE WAS COMING OF A HIGHWAY ON AN EXIT RAMP HE WAS SLOWING DOWN AND THE VEHICLES CLUTCH STAYED ENGAGED AND THE DRIVER ROLLED INTO THE INTERSECTION ALMOST HITTING A CAR. THE VEHICLES CLUTCH IS AUTOMATICALLY DISENGAGES WHEN YOU PUSH ON THE BRAKE WHILE THE CLUTCH DIDN'T DISENGAGE BECAUSE WHEN OF THE BRAKE LIGHT WIRES HAD DEVELOPED A CORROSION SPOT FROM THE WINTER WEATHER AND SHORTED OUT THE LIGHT AND CAUSED THE FUSE TO BLOW. THE BRAKE LIGHTS ARE WHAT TELLS THE CLUTCH TO DISENGAGE BUT WITH THE FUSE BEING BLOWN THE CLUTCH DID NOT DISENGAGE AND KEPT ROLLING INTO INTERSECTION LUCKILY MY DRIVER WAS SMART ENOUGH TO REACH UP AND PUSH NEUTRAL BUTTON ON DASH TO PUT TRANSMISSION IN NEUTRAL AND STOP THE TRUCK. ALSO IN OUR INVESTIGATION WE FOUND WHEN THE FUSE BLOWS FOR THE BRAKE LIGHTS THE CRUISE CONTROL WILL NOT SHUT OFF BY TAPPING THE BRAKES YOU HAVE TO MANUALLY SHUT IT OFF BY THE SWITCH I HAVE NO PHOTOS AS NOTHING SERIOUSLY HAPPENED MY MECHANIC CHANGED THE FUSE ON THE ROAD AND FOUND THE CORRODED WIRE. MACK SHOULD HAVE A BETTER SOLUTION THAN USING BRAKE LIGHTS TO DISENGAGE THESE CONTROLS
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .