Owners of Cadillac Lyriq vehicles are experiencing headlight problems.  While for some the problem may be minor or fixed, those with a substantial repair history and multiple problems including this may have several legal remedies available to them, depending on the specifics of their situation and applicable laws. Here are some potential legal remedies:

1. Warranty and lemon law claims: If the headlight issue falls within the scope of the vehicle's warranty and cannot be fixed, owners may be entitled to compensation.   Lemon laws vary by jurisdiction but generally require that a problem substantially impairs the vehicle's use, value, or safety, and the problem persists after a reasonable number of repair attempts.  

2. Breach of Warranty Lawsuits: If the headlight problem is not covered by the warranty or if the manufacturer fails to honor its warranty obligations, owners may file a lawsuit for breach of warranty. This could result in compensation for repair costs, diminished value, or other damages related to the defective liftgate.

3. Class Action Lawsuits: If numerous owners are experiencing similar liftgate issues, they may have the option to join or initiate a class-action

Owners experiencing headlight problems should check if applicable service bulletins or repairs can remedy the problem, but they should consider other remedies if they cannot.