Defect: Mack Trucks, Inc. (Mack) is recalling certain 2026 Mack MD vehicles. The center bench seat belt assembly may be routed incorrectly.
Consequence: An incorrectly routed seat belt assembly may not restrain an occupant as intended, increasing the risk of injury in a crash.
Remedy: Dealers will inspect and replace the seat belt assembly as necessary, free of charge. Owner notification letters were mailed June 3, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0478.
Do not drive: No. Park outside: No.
Investigations
0 investigations; 0 open.
Manufacturer communications
9 manufacturer communications.
Communications by system
System
Count
ELECTRICAL SYSTEM
4
POWER TRAIN
3
ENGINE
1
FUEL/PROPULSION SYSTEM
1
SERVICE BRAKES
1
UNKNOWN OR OTHER
1
VISIBILITY/WIPER
1
11032086
Date: 2026-04-09. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
CBR - Mack Carrier Nut Adhesive Change.
11032092
Date: 2026-04-09. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
11030579
Date: 2026-03-19. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, UNKNOWN OR OTHER.
CBR - No Start Condition After Over the Air Programing.
11030591
Date: 2026-03-12. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
TSB - Cable, Gear Selector, Replacement
11024784
Date: 2025-10-22. Type: Service Bulletin/Repair Instructions. Systems: VISIBILITY/WIPER.
CBR - Wiper Linkage Inspection.
11022289
Date: 2025-08-22. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a Critical failure, the vehicle will remain in Safe State.
11021332
Date: 2025-07-28. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
11021333
Date: 2025-07-17. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, SERVICE BRAKES.
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
11018813
Date: 2025-05-27. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, FUEL/PROPULSION SYSTEM.
Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.
NHTSA's complaints API and bulk file list no complaint for this make, model and model year in this data build.