Service bulletins for the 2018 Cadillac XTS
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
917 on file from NHTSA, as of 2026-10-19.
By type
By component
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Only bulletins with component: Suspension are shown. Show all
| 17NA172 | 2018-04-23. Service bulletin. SUSPENSION:REAR. This informational bulletin provides Specialized Diagnostic Information/procedures for Rear Suspension sag or sitting low. |
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| PIC5815C | 2017-12-14. Service bulletin. SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that may have sit lower at being parked for several days. It is important to note that, under normal conditions, it is typical and acceptable for the air suspension system to drop slightly over time. Dealers can remind customers that cycling the ignition or starting the vehicle will bring the trim height back to normal levels. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.