2025 Mack Md Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2025 Mack Md, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Brakes150.0%
- Powertrain (other)150.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
[XXX] - the truck lost brakes for the first time. The truck was returned 3/15/24 3/20/24 - The truck went back in the shop to get parts installed that were ordered. The truck was picked up 4/15/24. 4/16/24 - The truck went back in to the dealer for break noise and issues. The truck was picked up on 4/19/24. 4/22/24 - The truck went back to the dealer for break failure and issues. The truck was picked up 5/4/24 7/5/24 - The truck went back in the shop for break issues. The truck was picked up on 7/15/24 8/20/24 - the truck lost breaks - @ 11:14am, we called Dave/Mangino's @ 11:21am Let him know that we are done with the truck - it's not safe and that the dealer needs to figure out what to do next. 8/22/24 - Dropped truck off at Mangino's for the "Buy Back" per Dave Grossbeck. Also turned in the licenses plates. Waiting to hear from Dave for exact amount of check. 8/23/24 - Dave Grossbeck - told us he still does not have any answers from GM It's going to take some time. 8/26/24 - we went to Mangino's and met with Dave Grossbeck & Mike Coffey to call GM Customer Service together. Asked to speak with a supervisor. Was told they would have a call back within 24-48 hours. Have not heard back to date (8/30/24). Dave Grossbeck called GM Upper Management and was told they were having a meeting on Wednesday (8/28/24) regarding the truck. 8/26/24 - we contacted Gus (GM Engineer) regarding the truck - Guys replied that he was coming out on Wednesday (8/28/24) to evaluate the truck. 8/28/24 - Gus came to Mangino's - we heard nothing from anyone. 8/29/24 - we stopped in at Mangino's Dave Grossbeck had no new answers. 8/30/24 - Dave Grossbeck returned a call from us. Dave requested our GM claim #. 9/9/24 we received a payment for the truck in full minus interest and deal fees for the buy back. A week later the truck was on the dealers lot for sale. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
[XXX] - the truck lost brakes for the first time. The truck was returned 3/15/24 3/20/24 - The truck went back in the shop to get parts installed that were ordered. The truck was picked up 4/15/24. 4/16/24 - The truck went back in to the dealer for break noise and issues. The truck was picked up on 4/19/24. 4/22/24 - The truck went back to the dealer for break failure and issues. The truck was picked up 5/4/24 7/5/24 - The truck went back in the shop for break issues. The truck was picked up on 7/15/24 8/20/24 - the truck lost breaks - @ 11:14am, we called Dave/Mangino's @ 11:21am Let him know that we are done with the truck - it's not safe and that the dealer needs to figure out what to do next. 8/22/24 - Dropped truck off at Mangino's for the "Buy Back" per Dave Grossbeck. Also turned in the licenses plates. Waiting to hear from Dave for exact amount of check. 8/23/24 - Dave Grossbeck - told us he still does not have any answers from GM It's going to take some time. 8/26/24 - we went to Mangino's and met with Dave Grossbeck & Mike Coffey to call GM Customer Service together. Asked to speak with a supervisor. Was told they would have a call back within 24-48 hours. Have not heard back to date (8/30/24). Dave Grossbeck called GM Upper Management and was told they were having a meeting on Wednesday (8/28/24) regarding the truck. 8/26/24 - we contacted Gus (GM Engineer) regarding the truck - Guys replied that he was coming out on Wednesday (8/28/24) to evaluate the truck. 8/28/24 - Gus came to Mangino's - we heard nothing from anyone. 8/29/24 - we stopped in at Mangino's Dave Grossbeck had no new answers. 8/30/24 - Dave Grossbeck returned a call from us. Dave requested our GM claim #. 9/9/24 we received a payment for the truck in full minus interest and deal fees for the buy back. A week later the truck was on the dealers lot for sale. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
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.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .