RoadVitals

2008 Mack Chu

Recalls, owner-reported complaints, investigations and safety data

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
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Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
8
Latest Feb 21, 2014
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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Overview

Our database contains no NHTSA owner-reported complaints for the 2008 Mack Chu. 8 safety recalls have been issued covering this model year; 1 NHTSA investigation names it; and 188 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Safety recalls

8 campaigns cover this model year

View all 8

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
14V078000

ELECTRICAL SYSTEM

Feb 21, 2014
70,208 units potentially affected
The defect: Mack Trucks, Inc. (Mack) notified the agency on February 20, 2014, that they are recalling certain model year 2010-2012 CHU, CXU, GU and TD vehicles manufactured from June 16, 2009, through July 8, 2011. 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 2013-2014 CHU, CXU, GU and TD vehicles manufactured from June 16, 2009, through July 8, 2011. Having completed its investigation, Mack once again expanded the recall during February 2015 to include an additional 53,780 vehicles from model years 2007 and 2015. The recall now covers model year 2007-2015 includes CHU, CXU, GU and TD vehicles produced October 13, 2006, through October 3, 2014. In the affected vehicles, the Electronic Power Distribution Module (EPDM) may be contaminated from water leaks in, and around, the windshield. If exposed to water leaks, contaminants such as road salts may deposit on the EPDM.
The risk: Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.
The remedy: Mack has notified owners, and dealers will inspect the EPDM. If contamination has occurred, dealers will replace the EPDM and address the leak, free of charge. Owners of model year 2010-2012 CHU, CXU, GU and TD vehicles were initially notified April 24, 2014. Owners affected by the recall expansions were notified in February 2015. Owners may contact Mack Trucks at 1-336-393-2000. Mack's number for this recall is SC0375.
Mack Trucks, Inc.Manufacturer number SC0375View on NHTSA.gov
12V434000

ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; EXTERIOR LIGHTING:FOG LIGHTS

Sep 6, 2012
3,864 units potentially affected
The defect: Mack is recalling certain model year 2007-2010 CHU and CXU vehicles, manufactured from October 13, 2006, through December 23, 2009 and equipped with daytime running lights and fog lights. A short in the fog light circuit may cause the low beam headlight circuit to cut out.
The risk: If the low beam headlights go out, the driver may lose visibility, increasing the risk of a crash.
The remedy: Mack will notify owners, and install an additional wiring harness on the affected vehicles, free of charge. The safety recall began on November 14, 2012. Owners may contact Mack Trucks at 1-800-866-1177.
MACK TRUCKS, INCManufacturer number SC0365View on NHTSA.gov
07V531000

STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

Nov 19, 2007
1,058 units potentially affected
The defect: ON CERTAIN TRUCKS, THE BOLTS THAT ATTACH THE STEERING GEAR TO THE FRAME MAY NOT HAVE BEEN TIGHTENED TO THE SPECIFIED TORQUE.
The risk: LOSS OF STEERING CONTROL COULD OCCUR INCREASING THE RISK OF A CRASH.
The remedy: DEALERS WILL TIGHTEN THE BOLTS FREE OF CHARGE. THE RECALL BEGAN ON DECEMBER 10, 2007. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
MACK TRUCKS, INCManufacturer number SC0332View on NHTSA.gov

Safety investigations

NHTSA inquiries naming this vehicle. An investigation is not a finding of a defect.

PE08069ClosedPreliminary Evaluation

AIR COMPRESSOR DISCHARGE LINE

Opened Dec 9, 2008
Closed Jul 1, 2009

ODI opened this investigation based on a review of Early Warning Field reports which indicated instances of the air compressor discharge line coming loose or separating on certain model year 2008 Mack Trucks.Further review indicated that Mack had issued a Service bulletin (#SB 531014) in May 2008.A revised air line was incorporated into production in May 2008 and the ferrule type fitting was changed to a 37 degree flare compression type fitting.The failure resulted in a diminished air supply to the truck's braking system.During the investigation, ODI collected information from Mack, examined warranty claims, discussed the problem with fleet managers and confirmed that the subject vehicles meet the requirements of FMVSS 121, (Air Brake Systems).This standard includes a requirement for an air pressure gauge, and an audible and visual warning signal. The air system normally operates at 100 -120 psi.If the air discharge line becomes loose, the system will continue to hold air but replenishment may be diminished depending on the degree of leakage.If the air line separates, air system replenishment will cease and air pressure will drop as system air is used during brake applications.As the air pressure drops, the dashboard mounted gauge provides a continuous pressure status. Drivers are required to have a CDL (commercial drivers' license) with air brake endorsement and part of the training to obtain such a license includes learning how to monitor and respond to the air pressure system gauges.As the pressure drops below 60 psi, the audible/ visual warning device activates alerting the driver to take appropriate action to stop the truck in a safe location.If the air pressure is allowed to drop below 45 psi, the parking brakes will began to apply.ODI confirmed that approximately 94% percent of the trucks have engine brakes that provide supplemental braking and allow a driver with a leaking discharge line to use the compression of his engine to slow the truck, thus further preserving available air pressure.Using warranty claim data, ODI contacted 47 owners/drivers to gain an understanding of the problem and learned that 16 of the 47 discovered the problem while the truck was parked.Of the 31 drivers that discovered the problem while driving only 13 found it necessary to stop on the roadway's shoulder.Of those 13, four made temporary repairs in place and continued driving the truck. The remaining 18 were able to safely drive to a location away from the roadway to wait for assistance.Thus, 38 of the 47 vehicles surveyed were repaired in a garage or facility. Nine of the 47 were apparently towed.ODI has carefully reviewed the warranty claims and concluded that 639 reports are applicable in that warranty was performed on those trucks to replace or repair the defective air compressor fitting.Based on fleet interviews and warranty claim review, ODI believes the vast majority of the warranty claim repairs were performed in safe locations.The data indicates that the majority of failures were resolved off the highway in a safe location due to the warning system required by FMVSS 121 or during the driver's daily truck inspection required by the Federal Motor Carrier Safety Administration.During the investigation, ODI established that no crashes, injuries or fatalities have occurred as a result of this problemOn May 21, 2009, Mack announced that they would conduct an Owner Notification Program to address this matter and as of June 24, 2009, 824 trucks have been repaired. After examining all the relevant facts (no crashes, deaths or injuries, mandated audible and visual warning, 94% of the subject vehicles ha

SERVICE BRAKES, AIR:SUPPLY

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

No owner complaints recorded for this model year

Either none have been filed with NHTSA, or this vehicle is too new for reports to have accumulated.

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

CBR 2362-3 202604

POWER TRAIN

CBR - Mack Carrier Nut Adhesive Change.

CBR 2573-1 202604

POWER TRAIN

CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.

CBR 820-9 202601

ENGINE; 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.

CBR 2488 072025

ELECTRICAL SYSTEM

CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.

CBR 407 072025

ELECTRICAL SYSTEM; SERVICE BRAKES

CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.

CBR 170-8 202505

ENGINE

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)

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Mack Chu by model year
YearComplaintsRecallsInvestigationsIssue Index
2018000—
2017000—
2016001—
2015041—
2014051—
2013041—
2012000—
2011000—
2010050—
2009030—
2008Viewing081—
2007030—
2006000—

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. Older model years have had longer for reports to accumulate.