2021 Mack Te problems, complaints & recalls
Safety recalls (3)
Steering 2022-06-07 · campaign 22V401000 · 5,644 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2021-22 Granite, Anthem, LR, Pinnacle, and Terrapro tractor trailers. The steering gears may have been assembled incorrectly, which can cause the gear to fracture.
Risk: A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
Fix: Dealers will replace the steering gear, free of charge. Owner notification letters were mailed on July 29, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0437.
Parking Brake 2021-12-09 · campaign 21V953000 · 20,668 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2008-2019 TerraPro (MRU) and 2019-2022 TerraPro (TE) vehicles. A brake control valve air leak into the attached exhaust hose can create excessive back pressure, causing the parking brake to release unexpectedly.
Risk: The unexpected release of the parking brake may allow the vehicle to rollaway, increasing the risk of a crash.
Fix: Dealers will remove the exhaust tube and fitting from the valve, free of charge. Owner notification letters were mailed February 8, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0433.
Service Brakes, Air 2021-07-27 · campaign 21V573000 · 124 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2021 Granite, LR, and TerraPro vehicles. The rear drive axle may have the incorrect type of brake cam installed, which could result in inoperative rear axle brakes.
Risk: Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash.
Fix: Dealers will inspect the brake cams, and incorrect brake cams will be replaced, along with brake shoes, hardware, and wheel seals, as necessary, free of charge. Owner notification letters were mailed on August 10, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0427.
Service bulletins (134)
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.
Fuel/Propulsion System 2024-05-02 · CBR-2139 202405 · Service Bulletin/Repair Instructions
cbr: vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. it is possible that the source of the fuel is the rear fuel galley plug in the cylinder head. a new and improved fuel galley plug has been developed to resolve this issue.
Power Train 2024-04-22 · CBR-1008 202404 · Service Bulletin/Repair Instructions
cbr: equipped with an automated manual transmission model d or f ( amt-d, amt-f, mdrive) missing x1 value in vda and default settings guidelines, parameterp1aob; fault code p1052-54, error 40,or error 18 encountered during clutch or tran.
Engine And Engine Cooling 2024-04-02 · CBR-2013 202404 · Service Bulletin/Repair Instructions
cbr: turbo compound (tc) hot side noise, diagnostic information.
Engine And Engine Cooling 2024-03-01 · CBR-2139 202403 · Service Bulletin/Repair Instructions
cbr: vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. it is possible that the source of the fuel is the rear fuel galley plug in the cylinder head.
Electrical System 2024-02-21 · CBR-2350 202402 · Service Bulletin/Repair Instructions
cbr -telematics gateway (tgw) connect ability issues
Electrical System 2024-02-16 · CBR-2347 202402 · Service Bulletin/Repair Instructions
cbr - active "set park brake" message on drivers information display (did).
Showing the 6 most recent of 134 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.