2025 Mack Lr problems, complaints & recalls
Safety recalls (2)
Steering:linkages:tie Rod Assembly 2024-07-02 · campaign 24V504000 · 59 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2025 LR, Granite, and Pinnacle vehicles equipped with Composilite EXS20 steerable lift axle suspension assemblies. The tie rod assembly ball stud could have been improperly heat treated and can fail.
Risk: The ball stud can separate from the vehicle becoming a road hazard, increasing the risk of a crash.
Fix: Dealers will inspect and replace the tie rod end assemblies as necessary, free of charge. Owner notification letters were mailed July 15, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0468.
Electrical System:wiring:fuses And Circuit Breakers 2024-03-27 · campaign 24V232000 · 106 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 LR natural gas vehicles. The methane detector may be inoperative due to a missing fuse.
Risk: An inoperative methane detector can fail to detect a gas leak, increasing the risk of a fire or injury.
Fix: Dealers will install a fuse, free of charge. Owner notification letters were mailed April 10, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0461.
Service bulletins (31)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-06-22 · CBR-2592-1 202606 · Service Bulletin/Repair Instructions
the purpose of this cbr is to provide steps on how to correct a customer complaint of dtc p107b86 accompanied with intermittent loss of throttle.
Power Train 2026-04-09 · CBR 2573-1 202604 · Service Bulletin/Repair Instructions
cbr - mack chassis - through shaft bearing retainer breakage on mack carriers.
Power Train 2026-04-09 · CBR 2362-3 202604 · Service Bulletin/Repair Instructions
cbr - mack carrier nut adhesive change.
Suspension 2026-04-02 · SC S4920 202604 · Service Campaign
sc - trunion nut pinch bolt.
Unknown Or Other 2026-03-19 · CBR 2712-7 032026 · Service Bulletin/Repair Instructions
cbr - no start condition after over the air programing.
Fuel/Propulsion System 2026-02-01 · S4342 022026 · Service Campaign
sc - mack trucks has determined that a select group of trucks were built with an ahi module fuel pressure sensor which does not meet our specifications.
Showing the 6 most recent of 31 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.