Model year

2027 Mack MD

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (0)Complaints (0)Investigations (0)Bulletins (5)

Recall campaigns covering this model year0No recall campaign lists this model year

Owner complaints0Not enough peers on file

Severity indexNoneCrash, fire, injury or death per 100

First 24 monthsOpenWindow has not closed yet

Complaints over time

Complaints about the 2027 Mack MD by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

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Source: NHTSA ODI complaints file. The lighter column runs through October.

Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.

Recalls

No recall campaign lists the 2027 Mack MD

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Source: NHTSA ODI recalls file.

Look up a VIN at NHTSA

Owner complaints

What owners reported about the 2027 Mack MD

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

0 complaints on file.

Source: NHTSA ODI complaints file.

Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.

All investigations

Service bulletins

5 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

S5041 202608 Aug 2, 2026 · Service Campaign
Certain Mack Medium Duty vehicles may not have sufficient torque on the fan hub retaining hardware.
CBR 2573-1 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
CBR 2362-3 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
CBR - Mack Carrier Nut Adhesive Change.
TSB M-432-002A 032026 Mar 12, 2026 · Service Bulletin/Repair Instructions
TSB - Cable, Gear Selector, Replacement
CBR 2712-7 032026 Mar 19, 2026 · Service Bulletin/Repair Instructions
CBR - No Start Condition After Over the Air Programing.

Source: NHTSA manufacturer communications files.

About service bulletins