RoadVitals

2018 Mack Granite (gu)

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

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.
1
Latest Nov 5, 2020
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.
4
Latest Oct 18, 2024
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.
0
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.
0

Overview

Our database contains 1 NHTSA owner-reported complaint for the 2018 Mack Granite (gu), most frequently naming the suspension category. 4 safety recalls have been issued covering this model year; and 177 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.

What owners report

Complaints grouped by the component NHTSA recorded

  • Suspension1100.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

4 campaigns cover this model year

View all 4

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
24V773000

TIRES

Oct 18, 2024
49 units potentially affected
The defect: Mack Trucks, Inc. (Mack) is recalling certain 2019-2025 GR and 2018 GU Granite vehicles equipped with non-DOT tested tires. The tires may not have been DOT tested and confirmed to be sufficient for the vehicles. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 119, "New Pneumatic Tires - Other Than Passenger Cars."
The risk: Insufficient tires can fail, increasing the risk of a crash.
The remedy: Dealers will inspect and replace the tires as necessary, free of charge. Owner notification letters were mailed November 6, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0471.
Mack Trucks, Inc.Manufacturer number SC0471View on NHTSA.gov
23V600000

EXTERIOR LIGHTING:TURN SIGNAL

Aug 25, 2023
27,418 units potentially affected
The defect: Mack Trucks, Inc. (Mack) is recalling certain 2015-2023 GU and GR vehicles. The turn signals may be positioned incorrectly, reducing their visibility. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
The risk: Low turn signal visibility may not alert other drivers to a turning vehicle, increasing the risk of a crash.
The remedy: Dealers will add additional turn signal lighting, free of charge. Owner letters were mailed September 25, 2024. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0448.
Mack Trucks, Inc.Manufacturer number SC0448View on NHTSA.gov
21V233000

ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE

Apr 1, 2021
557 units potentially affected
The defect: Mack Trucks, Inc. (Mack) is recalling certain 2018-2022 Anthem (AN), Granite (GR/GU), and Pinnacle (CHU/CXU/PI) vehicles equipped with "camelback" rear suspension and electronic stability control. The vehicles may not stay in their lane at certain speeds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 136, "Electronic Stability Control Systems on Heavy Vehicles."
The risk: A vehicle that drifts out of its lane increases the risk of a crash.
The remedy: Mack will notify owners, and dealers will reprogram the vehicle control units, free of charge. The recall began on April 21, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0423.
Mack Trucks, Inc.Manufacturer number SC0423View on NHTSA.gov

Recent owner complaints

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

Suspension
Filed Nov 5, 2020

THE "U"BOLTS THAT ATTACH THE DRIVE AXLES TO THE SUSPENSION APPEAR TO BE FAULTY. WE'VE HAD TWO BREAK ON TWO SPATE OCCASIONS IN LESS THAN A WEEK. BOTH TIMES THE TRUCK WAS LOADED WITH APPROXIMATELY 79000 LBS, WE DON'T RUN OVER WEIGHT, AND DRIVING. FIRST TIME WAS LEFT REAR DRIVE AXLE AND THE SECOND WAS ON THE RIGHT SIDE OF THE FORWARD DRIVE AXLE. WHEN PURCHASING NEW U BOLTS THE PARTS GUY MENTIONED THAT THEY'VE BEEN SELLING A LOT OF THEM SINCE THE WEATHER TURNED COLD. LUCKILY MY DRIVERS ARE VERY AWARE AND STOPPED AS SOON AS IT HAPPENED. I CAN ONLY IMAGINE WHAT WOULD HAPPEN IF AN AXLE BROKE LOOSE AT 65 MPH WITH A FULL LOAD ON THE TRUCK

NHTSA ID
11373158
Incident
Nov 2, 2020
Mileage
250,000 mi

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 126 022026

ELECTRICAL SYSTEM

CBR - The purpose of this solution is to give information on Engine Control Module (EMS) Software content.

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 2107-22 202601

ENGINE

CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4) and PR(4)).

CBR 2171-11 202511

ELECTRICAL SYSTEM; ENGINE

CBR - Mack Temperature Sensor Troubleshooting Guide

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 Granite (gu) by model year
YearComplaintsRecallsInvestigationsIssue Index
2025000—
2024000—
2023010—
2022030—
2021040—
2020040—
2019040—
2018Viewing140—
2017130—
2016081—
20151120—
20140130—
20130100—
20120130—
2011040—
2010040—
2009010—
2008000—
2007000—

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.