RECALLS — MAKE · MODEL · YEAR
2016 Mack GU recalls
5 safety recall campaigns have been filed for the 2016 Mack GU with Transport Canada and the U.S. NHTSA. Here is what both agencies say.
- Canadian recalls
- 05
- U.S. recalls
- 00
- Total campaigns
- 05
Transport Canada recalls
05- Lights And Instruments#2023474
5,280 units affected
Issue: On certain trucks, the front turn signals may not be visible from certain angles. As a result, the trucks don't meet the requirements of the Canadian regulations. Safety Risk: Turn signals that aren't visible from certain angles may cause a person not to recognize when a driver intends to turn or change lanes. This could increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to install additional front turn signals.
- Powertrain#2016495
1,690 units affected
On certain vehicles, the cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft may prematurely loosen. If the nut were to loosen and come off, the yoke could separate from the axle input shaft and cause the drive shaft to disconnect. A disconnected drive shaft would result in a loss of motive power, and create a road hazard, both of which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect the torque on the cap nut, and the nut will be replaced if the torque is found under specification. Note: This is an expansion of recall 2016-079.
- Steering#2016078
130 units affected
On certain vehicles, the roll pin may not have been installed on the upper yoke on the steering shaft during assembly. If the roll pin is missing, the steering shaft may disconnect from the yoke. Separation of the shaft from the yoke would result in complete loss of steering, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect the steering shaft, and replace it if the roll pin is found missing.
- Brakes#2015373
3 units affected
Certain vehicles fail to comply with the requirements of Canada Motor Vehicle Safety Standard 121 - Air Brake Systems. These vehicles were built with insufficient air tank reserve capacity, which may provide an insufficient air supply to properly operate the brakes during repetitive brake applications. This may result in reduced braking performance which could result in a vehicle crash. Correction: Dealers will install an air tank to increase air reservoir capacity.
- Brakes#2015372
241 units affected
On certain vehicles, The chassis electrical harness and air brake lines may not have been properly secured at the crossmember. This could cause the electrical cables and air lines to fall down and get twisted in the driveline. This could affect safety systems such as brakes, increasing stopping distances or causing unintended parking brake application. This could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect and repair the vehicle as needed.
Canadian data updated August 24, 2026
U.S. NHTSA recalls
00No recalls found for this make, model, and year.
Does this recall apply to my vehicle?
Matched by make, model, and model year. Many recalls affect only specific VIN ranges — confirm with your dealer using your full VIN.
What to do
Recall repairs are free at a franchised dealer in both countries. To confirm a recall applies to your specific vehicle, or to book the work, contact your manufacturer or dealer with your full VIN, or use the official channel:
- NHTSA recall lookup (search by VIN) — U.S. National Highway Traffic Safety Administration
- Defects and recalls database — Transport Canada
Check a 2016 Mack GU VIN
A VIN decode confirms your vehicle's exact model year, trim and assembly plant, then runs this same recall check against it.