The twisted air conditioning hose problem affects only a few hundred Cadillac Lyriq units from the 2023 and 2024 model years.
GM dealer service personnel are instructed to inspect both Cadillac Lyriq units currently in dealer inventory and EVs which are brought back to the dealership by their owners for servicing or other reasons. The mechanics can verify that a specific Lyriq is involved by checking to see if it is marked “Open” on the GM Global Warranty Management system’s Investigate Vehicle History screen.
Further inspection should then be carried out to see if the hose is twisted. GM does not indicate in the service bulletin if any noticeable A/C problems will result from a twisted hose. If the vehicle is confirmed as having twisted air conditioning hoses, the service personnel should reposition the hoses so they are no longer twisted.
GM notes that only 396 Cadillac Lyriq units in total are affected by this problem. Some units may require replacement of the air conditioning evaporator hose seal as well. However, The General believes only four (4) vehicles in total will need a new seal. Since the seals are in extremely limited supply, the dealer should verify that the seal is damaged before ordering a new replacement component.
Only Cadillac dealerships with EV Readiness Requirements certification are authorized to carry out the fix, and must use correctly trained technicians to do so. Dealers in Canada need to meet several other requirements before completing the field action.
The fix is available free of charge for a specific Cadillac Lyriq until the vehicle’s New Vehicle Limited Warranty ends.
Owners of potentially affected 2023 or 2024 Cadillac Lyriq units can contact Cadillac customer service at the toll-free number below, referring to the service update number if necessary:
- GM service update: N232413240
- Cadillac Customer Service: 1-800-458-8006