TSB SB-23-01 — Ford Service bulletin

SB-23-01 is a service bulletin on file with NHTSA for the Ford Mustang, 2015–2017 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. SPL Parts, Inc. manufacturers and distributes aftermarket lower control arms for dedicated competition vehicles and "track day" cars some of which may be used on both track and highway. SB 23-01 adresses proper installation torque of cap bolt fasteners attaching SPL's…

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
1Vehicle named
3Model years

Vehicles and model years SB-23-01 names

VehicleModel years
Ford Mustang 2015, 2016, 2017

Every document filed under SB-23-01

Document IDFiledType
SB 23-01 July 14, 2023 Service bulletin

What SB-23-01 covers

Suspension, Steering — the component vocabulary NHTSA files this communication under.

← All Ford Mustang TSB years TSB lookup by model

Questions buyers ask

What is TSB SB-23-01?

SB-23-01 is a service bulletin filed with NHTSA by Ford, covering the Ford Mustang across the 2015–2017 model years. NHTSA's summary reads: SPL Parts, Inc. manufacturers and distributes aftermarket lower control arms for dedicated competition vehicles and "track day" cars some of which may be used on both track and highway. SB 23-01 adresses proper installation torque of cap bolt fasteners attaching SPL's…

Which vehicles does SB-23-01 cover?

NHTSA's file names Ford Mustang (2015–2017). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB SB-23-01 a recall, and is the repair free?

No. SB-23-01 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of SB-23-01?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under SB-23-01, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under SB-23-01. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.