June 8: GM Files Motion to Dismiss L87 Engine Lawsuit news | 18 days ago
May 13: Do Not Drive Warning For Cadillac, Chevrolet and GMC Models recalls | 44 days ago
April 25: GM Argues Ultium Charger Lawsuit Should be Dismissed news | 62 days ago
April 13: Cadillac LYRIQ Electric SUV Lawsuit Blames Electrical Problems news | 74 days ago
Cadillac TSB #18-NA-306
2020 Cadillac CT4
TSB Document:
Affected Component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
- Summary
- This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
Click a tab for more information.



