Complaints over time
Complaints about the 2009 Mack CXU peaked in 2010, with 2 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Source: NHTSA ODI complaints file. The lighter column runs through October.
Model year
2009 Mack CXU
Heavy truck, diesel, built in United States. Owner complaints on file from Sep 23, 2010 to Jul 24, 2011.
Recall campaigns covering this model year375k vehicles or units across those campaigns
Owner complaints3Close to the median 2009 heavy truck
Severity index0.02009 heavy trucks average 20.0
First 24 months0Complaints in its first two years
Components
67% of complaints about the 2009 Mack CXU name structure
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls
3 recall campaigns cover the 2009 Mack CXU
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 14V-078 | Feb 21, 2014 | While continuing to research the scope of the issue, Mack expanded the recall on November 18, 2014 to include certain model year 2008-2009 and… | Electrical system | 70,208 | Part replacement |
| 12V-434 | Sep 6, 2012 | Short in the fog light circuit may cause the low beam headlight circuit to cut out | Electrical system | 3,864 | Repair or modification |
| 11V-209 | Mar 31, 2011 | There may be an interference with the bolts used to secure the fifth wheel to the frame that can prevent the bolts from being torqued to specification | Trailer hitches | 808 | Part replacement |
Source: NHTSA ODI recalls file.
Owner complaints
What owners reported about the 2009 Mack CXU
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
3 complaints on file, page 1 of 1.
- Filed Jul 24, 2011Failure Jul 19, 2011303,175 milesBenton, ARSuspension
ON TUESDAY, JULY 19 OF 2011, I OBSERVED THAT THE 5TH WHEEL BOLTS ON ABF UNIT NUMBER 19223 WERE LOOSE ENOUGH TO BE TURNED BY HAND. THE BOLTS ARE NOT BEING INTERFERED WITH BY THE HUCK RIVETS BELOW THEM. THE NUTS ARE PREVAILING TORQUE LOCK NUTS AND ARE NOT LOOSE ON THE BOLTS. THE BOLTS HAVE STRETCHED UNDER LOAD. I WAS GOING TO SHOW THE UNIT TO THE DIRECTOR OF MAINTENANCE, WHO HAPPENED TO BE IN OUR SHOP THAT DAY. UNFORTUNATELY, UNIT 19223 WAS SENT OUT BEFORE I COULD SHOW HIM. I DID, HOWEVER, MAKE A VIDEO OF ME TURNING THE LOOSE BOLT BY HAND. THIS IS ONLY ONE OF HUNDREDS OF ABF MACKS FROM 2009 AND 2010 THAT HAVE 5TH WHEEL BOLTS THAT ARE YIELDING UNDER LOAD.
NHTSA complaint 10415848 - Filed Oct 3, 2010Failure Sep 27, 2010Benton, ARFrame and members, Trailer hitches
SOME OF THE 2008, MANY OF THE 2009, AND ALMOST ALL OF THE 2010 MODEL MACK TRUCKS USED BY ABF FREIGHT SYSTEM WERE BUILT AND DELIVERED WITH WEAK BOLTS HOLDING THE 5TH WHEEL COUPLER TO THE FRAME. ON 27 SEPT 2010, UNIT 19212 WAS IN THE SHOP FOR ROUTINE REPAIRS. A MECHANIC NOTICED THAT ALL OF THE BOLTS ON THE RIGHT SIDE WERE LOOSE ENOUGH TO RATTLE IN THEIR HOLES AND THAT THE COUPLER WAS SLIDING AROUND ON THE FRAME. THE MANAGER INSTRUCTED US TO TIGHTEN THE BOLTS AND NOT TO REPLACE ANY UNLESS THEY STRETCHED. ALL OF THE BOLTS STRETCHED. ALL WERE REPLACED. *TR
NHTSA complaint 10358896 - Filed Sep 23, 2010Failure Sep 23, 2010179,708 milesBenton, ARStructure, Trailer hitches
MY COWORKER WAS CHANGING THE OIL ON A 2009 MACK AND I HAPPENED TO NOTICE THAT THE 5TH WHEEL PLATE WAS SHIFTING AROUND ON THE FRAME. I APPLIED A BOX END WRENCH TO THE MOUNT BOLTS AND DISCOVERED THAT ALL TEN OF THE FASTENERS HOLDING THE 5TH WHEEL TO THE FRAME COULD BE TURNED EASILY USING ONE HAND. THAT IS NOT MY IDEA OF BEING SECURELY ATTACHED! NO ACTION WAS TAKEN ON THIS TRUCK BECAUSE IT WAS TIME TO GO HOME AND IF THE BOSS DOESN'T CARE AND MACK DOESN'T CARE WHAT CAN I DO EXCEPT COMPLAIN TO THE FEDERAL GOVERNMENT THAT MACK IS USING SUBSTANDARD BOLTS IN THE ASSEMBLY OF THEIR TRUCKS! THE 5TH WHEELS ARE LOOSE. MANAGEMENT DOESN'T WANT TO KNOW! BE VERY AFRAID ON THE HIGHWAYS MY FELLOW AMERICANS, YOU ARE MORE LIKELY TO DIE FROM A TRUCK ACCIDENT THAN YOU ARE FROM A TERRORIST ATTACK! *TR
NHTSA complaint 10357279
Source: NHTSA ODI complaints file.
Investigations
1 NHTSA investigation on file
- PE10042 Preliminary evaluation, Trailer hitches
Failing 5th wheel attachment bolts
Opened Nov 4, 2010, closed Apr 27, 2011 · led to a recall
Source: NHTSA ODI investigations file.
Service bulletins
176 manufacturer communications cover this model year
Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.
- CBR 2573-1 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers. - CBR 2362-3 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
CBR - Mack Carrier Nut Adhesive Change. - CBR 820-9 202601 Jan 8, 2026 · Service Bulletin/Repair Instructions
CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise. US07 And Newer Emissions, Model Year 2008 And Newer. - CBR 407 072025 Jul 17, 2025 · Service Bulletin/Repair Instructions
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded. - CBR 2488 072025 Jul 28, 2025 · Service Bulletin/Repair Instructions
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data. - CBR 2464-1 202505 May 1, 2025 · Service Bulletin/Repair Instructions
Mack Chassis - Rear Axle Overheat - CBR 170-8 202505 May 28, 2025 · Service Bulletin/Repair Instructions
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) - CBR-407 202409 Sep 13, 2024 · Service Bulletin/Repair Instructions
CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded. - CBR-2383 202406 Jun 19, 2024 · Service Bulletin/Repair Instructions
CBR - Accelerator Pedal: Inspection Instructions - CBR-2139 202405 May 2, 2024 · Service Bulletin/Repair Instructions
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. A new and improved fuel galley plug has been developed to reso… - CBR-2347 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID). - CBR-202 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft. - M-465-001 202311 Nov 7, 2023 · Service Bulletin/Repair Instructions
TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The ne… - M728-005A 202308 Aug 14, 2023 · Service Bulletin/Repair Instructions
TSB: Barksdale Leveling Valve, Leak Test - M-141-001 202308 Aug 18, 2023 · Service Bulletin/Repair Instructions
TSB: Air Restriction Indicator - KC-474-Ver5 May 2, 2023 · Service Bulletin/Repair Instructions
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19 - KC-614-Ver4 May 24, 2023 · Service Bulletin/Repair Instructions
CBR: eWarranty To UCHP Labor Code ( SCC Code ) Crossover, Conversion Information For Use With Campaigns ( FI, PI ) And Recalls ( EC, SC ), Location On Trucks Dealer Portal ( TDP ) - M-170-003 Apr 18, 2023 · Service Bulletin/Repair Instructions
TSB: Vibration Diagnostics - M-170-001 Apr 18, 2023 · Service Bulletin/Repair Instructions
TSB: Stock Vehicle Storage and Maintenance - M-170-002 Apr 18, 2023 · Service Bulletin/Repair Instructions
TSB: New Vehicle Safety Certification Requirements for Vehicles, U.S. and Canada - S7627 Feb 28, 2023 · Service Bulletin/Repair Instructions
Mack MMD Alternator Pulley - KC-2248 Feb 21, 2023 · Service Bulletin/Repair Instructions
Flywheel Housing Thread Repair - KC-395 Feb 8, 2023 · Service Bulletin/Repair Instructions
Instrument Cluster Programming - Programming Fails Or Errors Display When Replacing An Instrument Cluster With A Newer Part Number (Conversion Kit) - US04 To US10 Chassis (9-Pin Diagnostic Connector) - M-728-001 Sep 22, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Air suspension ride height. - M-411-001 Sep 21, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Two-Piece clutch brake. - M-874-002 Sep 21, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. HVAC fine particulate filter. - M-846-004 Sep 15, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Fender mounted mirror washer kit. - M-252-002 Sep 15, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. DPF outlet pipe heat shield. - M-222-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Loose oil filter spud. - M-260-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Cooling system connections. - M-721-005 Sep 15, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Chassis lean. - M-801-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Paint protection. - M-652-002 Sep 15, 2022 · Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Torque rod interference. - M-374-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Revised battery ti battery cable - M-265-002 Sep 22, 2022 · Service Bulletin/Repair Instructions
TSB-Charge Air Cooler t-clamp install. - M-255-016 Aug 19, 2022 · Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Turbo Actuator Connector Repair. - M-561-002 Aug 6, 2022 · Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. New Air Dryer - M-451-002 Aug 6, 2022 · Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Axle Carrier Pinion Angles - M-451-001 Aug 6, 2022 · Service Bulletin/Repair Instructions
2007 Document reformatted to be published as a TSB in Impact. Updated Crossmember for improved clearance. - M-711-002 Aug 6, 2022 · Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Frame reinforcement plate. - M-711-001 Aug 6, 2022 · Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Rear Suspension Repair. - M-372-001 Aug 6, 2022 · Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Daytime Running Lamp (DRL) Relay Block - M-258-001 Jun 30, 2022 · Service Bulletin/Repair Instructions
2008 document reformated to be published as a TSB in Impact. All CXU, CHU, GU, MRU's built with Volvo Engines and 07 Emissions. Cleaning Aftertreatment Fuel Injectors. - KC-2112 Jun 21, 2022 · Service Bulletin/Repair Instructions
Programming Failure - Chassis With Cummins Engine And An Allison Transmission - KC-2143 Jun 21, 2022 · Service Bulletin/Repair Instructions
(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP). - KC-405 Jun 21, 2022 · Service Bulletin/Repair Instructions
Warranty Automated Manual Transmission ( AMT, I-Shift, mDrive ) Control Housing Assembly; Guidelines For Filing A Claim For Chassis Return Visit With Transmission Issues After A Repair Requiring Control Housing Removal And Reinstallation - US07 And N. - KC-745 Jun 22, 2022 · Service Bulletin/Repair Instructions
Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault Codes P1058 - 21 Or MID 130 PID 161 FMI 1 - KC-750 Jun 28, 2022 · Service Bulletin/Repair Instructions
US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting. - KC-663 May 18, 2022 · Service Bulletin/Repair Instructions
Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions - KC-653 May 17, 2022 · Service Bulletin/Repair Instructions
Low Oil Pressure Diagnostic Process For 11 Liter Engines - KC-644 May 17, 2022 · Service Bulletin/Repair Instructions
Manual Compression Test Adapter For Engines With Stainless Steel Injector Sleeves (Conical Tip Injectors) - US07 And Newer Emissions, Model Year 2008 And Newer - KC-630 May 9, 2022 · Service Bulletin/Repair Instructions
Sensor And Parameter Value Monitor - Template Parameter List For Pre-OBD (9-Pin Diagnostic Connector) Chassis In Premium Tech Tool ( PTT ); Regeneration And Road Test Sensor Monitor Parameters - US07 And US10 Emissions, Model Years 2008 To 2013 - KC-627 May 9, 2022 · Service Bulletin/Repair Instructions
Premium Tech Tool ( PTT ) Training Materials And Support Tools - KC-2172 May 16, 2022 · Service Bulletin/Repair Instructions
No Start Condition After Over The Air Programing - VECU5 No Start "Safe State" - KC-2171 May 26, 2022 · Service Bulletin/Repair Instructions
Temperature Sensor Troubleshooting Guide - US10+OBD13 And Newer - KC-2170 May 16, 2022 · Service Bulletin/Repair Instructions
Electronically Controlled Suspension (ECS) Losing Air Pressure - KC-2169 May 16, 2022 · Service Bulletin/Repair Instructions
Low Voltage Disconnect (LVD), Function Description - KC-2165 May 26, 2022 · Service Bulletin/Repair Instructions
DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions - KC-2161 May 13, 2022 · Service Bulletin/Repair Instructions
DEF Pump Cycling periodically Hours After Key Off - KC-2158 May 26, 2022 · Service Bulletin/Repair Instructions
Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
Source: NHTSA manufacturer communications files.