Truck brake caliper bolts may loosen, causing brake failure
Daimler Trucks is recalling 2025 Western Star 47X and other vehicles because brake caliper mounting bolts may loosen and detach, potentially causing brake failure. Owners should contact dealers for free inspection and repair.
What this means for you
Illness, injury, or structural failure has been reported. Stop using the product immediately and contact the manufacturer for a refund or repair.
Our severity reasoning: This constitutes a structural vehicle defect affecting the brake system, a safety-critical component. While no injuries have been reported, the defect creates a direct risk of brake failure and increased crash risk.
Plain-English summary
Daimler Trucks North America (DTNA) is recalling certain 2025 and 2026 vehicles, including the 2025 Western Star 47X, because the brake caliper mounting bolts may loosen and detach during operation.
If these bolts fail, the vehicle will lose braking function, which significantly increases the risk of a crash. A detached caliper can also damage the wheel and tire, potentially causing a loss of vehicle control.
DTNA began notifying owners by mail on November 10, 2025. Dealers will inspect the brake caliper mounting bolts and replace or tighten them as necessary, at no cost to owners.
Owners can contact DTNA customer service at 1-800-547-0712 for more information. DTNA's internal reference number for this recall is F1023.
The recalled product
- Product
- 2025 WESTERN STAR 47X
- Brand
- WESTERN STAR
- Manufacturer
- Daimler Trucks North America, LLC
- Category
- Vehicle
- Hazard
- brake-failure
- crash-risk
- loss-of-vehicle-control
- Affected units
- 402
Is your product affected?
Check your packaging against the codes below. If any of them match, the product is part of this recall.
Model numbers (17)
- 47X
- 49X
- CASCADIA
- BUSINESS CLASS M2
- 57X
- MT45
- XCR
- XCP
- XCM
- XBS
- MT45G
- MT50E
- MT55
- 108SD
- 114SD
- MT55G
- CASCADIA FIFTH GEN
Distribution
Distributed nationwide across the United States.
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