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Mack Trucks - High beams may not automatically switch to low beams fmvss 108
Official notice
20 Nov 2025
Last checked
20 Nov 2025
An official NHTSA notice concerns Mack Trucks - High beams may not automatically switch to low beams fmvss 108. High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, increasing the risk of a crash. Published 2025-11-20.
What to do now
As an interim action, mack will update the vehicle software through an over-the-air (ota) update to disable the ahb feature, free of charge. The final remedy is under development. Interim owner notification letters are expected to be mailed january 17, 2026. Additional letters will be sent once the final remedy is available. Owners may contact mack's customer service at 1-800-866-1177. Mack's number for this recall is sc0488. Vehicle identification numbers (vins) involved in this recall will be searchable on NHTSA.gov beginning november 27, 2025.
Units affected
247
Recall number
SC0488
Official notice
2025-11-20
The hazard
The hazard
High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, increasing the risk of a crash.
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Affected products
Product 1
Units affected
Risk / hazard
Where it was sold
Where it was sold
The source does not list specific retailers. See the official notice for where affected vehicles were sold.
Location 1
Affected area 1
Company & contacts
Company & contacts
Brand
Manufacturer
Phone
Brand: Mack Trucks. Contact: Mack Trucks, Inc..
Source & status
Source & status
Recall details
Recall details
Recall number
Campaign number
Units affected
Source tier
Documents, notices & source
See the official notice and source documents for full details.
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