- The problem
- Mack Trucks, Inc. (Mack) is recalling certain model year 2015 and 2016 CXU and LEU trucks manufactured May 20, 2014, to March 24, 2015, equipped with certain Haldex Life Seal Type 30/30 Long Stroke Air Brake Actuators manufactured from January 9, 2014, through February 3, 2015. The affected actuators may have an incomplete attachment of the internal rubber diaphragm to the actuation mechanism of the parking brake section of the Life Seal actuator.
- The risk
- If the diaphragm is not completely attached, there may be internal leakage from the service section past the diaphragm, potentially trapping air pressure in the parking brake section. This air pressure in turn, if not vented, may prevent full release of the actuator unit, and may induce brake drag and may result in overheated wheelend service brakes, increasing the risk of a fire.
- The fix
- Mack will notify owners, and dealers will inspect the brake actuator and replace, as necessary, free of charge. The recall began March 20, 2015. Owners may contact Mack customer service at 1-610-709-2131. Mack's number for this recall is SC0387.
Vehicle safety record
2016 Mack Cxu Problems, complaints & recalls
Owners have filed 1 complaint about the 2016 Mack Cxu with NHTSA, most often about the transmission & drivetrain (1). It is covered by 1 recall, the latest in January 2015 for the actuator.
NHTSA data checked
AFar fewer problems than a typical Cxu year, for its age
#408 most complained-about 2016 vehicle
- Complaints
- 1
- Recalls
- 1
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Most common 2016 Mack Cxu problems
Share of all 1 complaints. One complaint can name more than one area. Tap an area for its complaints and recalls.
2016 Mack Cxu recalls 1
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
What owners say
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1 complaints about the 2016 Mack Cxu
Newest first, as filed with NHTSA by owners.
Second occurrence of below happening, first time being 11/28/25, and most recently 11/05/25. Clutch engaged uncommanded while stopped with service brakes engaged. Truck kept trying to power through the service brakes until it was forcefully stalled out with service brakes. Truck is start-able immediately afterwards, but not drivable with engine stop warning lamp illuminated and a error message "Neutral Gear Not Secured" Nearly rear ended a stopped vehicle in front of truck, so yeah, slight safety concern of...
Read the full complaint
uncommanded movement of vehicle. Has not been looked at by independent shop or manafacterer, nothing has been inspected, mechanics within company vehicle is operated by currently researching into problem and waiting for stated problem to occur again. Refrencing a previous investigation here that i believe is related; PE 20-005
Mack Cxu: every year compared
| Year | Complaints | Recalls | Grade |
|---|---|---|---|
| 2016 | 1 | 1 | A |
Questions about the 2016 Mack Cxu
Does the 2016 Mack Cxu have any recalls?
Yes - NHTSA lists 1 recall for the 2016 Mack Cxu: actuator (January 2015). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
What are the most common problems with the 2016 Mack Cxu?
By the complaints owners filed with NHTSA, the most common problem areas are the transmission & drivetrain (1).
How many complaints has the 2016 Mack Cxu had?
1 complaints have been filed with NHTSA, the first on November 5, 2025 and the latest on November 5, 2025. Of these, 0 describe a crash and 0 a fire, and together they report 0 injuries and 0 deaths.
Is the 2016 Mack Cxu a reliable vehicle?
Its Safety Index is 81 out of 100 (grade A: far fewer problems than a typical Mack Cxu year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
Which Mack Cxu years have the most complaints?
2009 (3), 2010 (1), 2016 (1). See every Mack Cxu year compared.
What should I do if my 2016 Mack Cxu has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data