TSB: FORD MUSTANG (2015–2019)

Bulletin SSM 47991 — May 20, 2019

Bulletin Details

Bulletin IDSSM 47991
ManufacturerFORD
ModelsMUSTANG
Model Years2015–2019
Date IssuedMay 20, 2019
Date Added to NHTSAJune 7, 2019
ComponentPOWER TRAIN
Vehicles Affected10 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Some 2015-2019 Mustangs may exhibit a driveline vibration after removal and installation of the drive pinion flange. This may be due to improper removal and installation of the drive pinion flange. It is critical to reinstall the drive pini

Affected Vehicles

MakeModelYearComponent
FORD MUSTANG 2019 100000 POWER TRAIN
FORD MUSTANG 2019 105000 POWER TRAIN:DRIVELINE
FORD MUSTANG 2018 100000 POWER TRAIN
FORD MUSTANG 2018 105000 POWER TRAIN:DRIVELINE
FORD MUSTANG 2017 100000 POWER TRAIN
FORD MUSTANG 2017 105000 POWER TRAIN:DRIVELINE
FORD MUSTANG 2016 100000 POWER TRAIN
FORD MUSTANG 2016 105000 POWER TRAIN:DRIVELINE
FORD MUSTANG 2015 100000 POWER TRAIN
FORD MUSTANG 2015 105000 POWER TRAIN:DRIVELINE

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized FORD dealer. Bring this bulletin ID (SSM 47991) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.