There was one technical service bulletin issued for the 2020 Jayco Seismic.
| Bulletin Date: | Jun. 8, 2020 |
| Component: | Brakes (pws). |
| Bulletin Summary: | Certain dexter axles equipped with electric over hydraulic (e/h) brake actuators may not be compatible with gm integrated trailer brake controller on newer model GMC vehicles. When the driver applies the brake for the first time to move |
| Vehicles covered in this TSB: |
2020 Jayco Seismic.
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