Tesla Cybertruck 2024–2025 — technical service bulletin
Bulletin SB-26-40-001 · NHTSA communication 11028090 · issued Jan 21, 2026
Technical service bulletin
communication type
Power Train
component
2024–2025
model years
2
vehicle entries
Official summary
On certain Cybertruck vehicles, the halfshaft bolts may lose torque, which may cause a loud grinding noise if the hub and axle facespline teeth become unseated and damaged. Replace all 4 halfshaft bolts and run a Double Pedal Torque Test to confirm the hub and halfshaft facespline teeth are properly seated.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.