Service bulletins for the 2018 Cadillac CTS
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.
1149 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
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Only bulletins with component: Power steering are shown. Show all
| 18276 | 2018-11-13. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM; STEERING:HYDRAULIC POWER ASSIST SYSTEM; STEERING. 18276 - Customer Satisfaction Program - Certain vehicles, may have a condition in which the power steering assist power pack is potentially missing ?welds? between the circuit board and the motor. If this condition exists, power steering may be lost, and the driver may experience unanticipated increased steering effort as the vehicle reverts to manual steering. A chime will also sound in the vehicle, and a ?Service Power Steering? message will appear on the Driver Information Center (DIC). Manual steering functionality will be maintained but will require additional effort, particularly at lower speeds. Dealers are to replace the complete power steering rack assembly |
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| PIP5545 | 2018-02-21. Service bulletin. BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE; STEERING:HYDRAULIC POWER ASSIST:PUMP. This Preliminary information communicates a possible noise from the water pump causing a DTC and the diagnostics for the repair. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.