Home ยป Some Cadillac Lyriq Units Need This High Voltage Harness Fix

Some Cadillac Lyriq Units Need This High Voltage Harness Fix

Some Cadillac Lyriq Units Need This High Voltage Harness Fix

Cadillac’s parent company, General Motors, has released a service update for certain units of the 2023 Cadillac Lyriq to address an issue with the electric luxury crossover’s high voltage harness. 

The problem: the high voltage harness in affected units of the 2023 Cadillac Lyriq may contact a sharp edge on the high voltage battery case. 

The hazards: if the high voltage harness contacts the sharp edge of the battery case, it could cause the harness to be worn through. 

The fix: a dealership technician will install anti-abrasion tape to the sharp edge of the battery case and secure the high voltage battery harness.

Affected components: high voltage battery harness, high voltage battery case.

Affected vehicles: 2023 Cadillac Lyriq. 

Number of affected vehicles: the luxury marque did not indicate how many units of the Cadillac Lyriq may be affected by this conditions. 

Next steps: owners of affected units of the 2023 Cadillac Lyriq will be notified by Cadillac with instructions to make an appointment with a preferred dealer. To find out whether a particular vehicle is affected by this service update, owners may reach out to Cadillac directly using the contact information below. 

It’s important to note that because this is a service update, not a recall, it will expire at the end of the vehicle’s New Limited Vehicle Warranty period. 

Contact information: 

  • Customer satisfaction program number: N222390690
  • Cadillac customer service: 1-800-333-4223

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Written by
Alexandra is a Colorado-based journalist with a passion for all things involving horsepower, be it automotive or equestrian.


  1. I expect these fixes will be done at every Lyriq during assembly.

  2. Is this a short-out risk, fire risk or electrocution risk? What design change other than tape is being performed before anyone like myself take delivery of a 2024 Lyriq?


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