{"source":"NHTSA vehicle owner complaint","officialApiUrl":"https://api.nhtsa.gov/complaints/odinumber?odinumber=11752440","retrievedAt":"2026-11-05T06:04:51.526Z","count":1,"results":[{"odiNumber":11752440,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"05/07/2026","dateComplaintFiled":"07/23/2026","vin":"5GAERAKW5KJ","components":"UNKNOWN OR OTHER","summary":"Formal Complaint – 2019 Buick Enclave Rear A/C Evaporator Failure  I am filing a safety complaint regarding repeated refrigerant leaks and rear A/C evaporator failure on my 2019 Buick Enclave. My vehicle has 72,000 miles and has experienced two A/C system failures within 60 days. The first Freon leak was repaired under a GM special warranty. Only two months later, the system failed again, and the dealership diagnosed a rear evaporator core leak requiring a $3,000 repair.  This is not normal wear. GM has documented this defect in bulletins PIT5335, PIT5335A, and 16‑NA‑046, which describe rear evaporator corrosion caused by blower‑motor copper brush dust contaminating the evaporator. My vehicle is experiencing the same failure pattern.  This defect presents safety concerns including: • Loss of cooling in high‑heat conditions, affecting driver alertness • Moisture or fogging that can impair windshield visibility • Air‑quality risks from refrigerant leaks and potential mold • System failure during highway travel, impacting driver comfort and concentration  The rapid recurrence of the failure after a GM‑covered repair indicates a systemic defect, not a maintenance issue. GM refuses to cover the second repair despite acknowledging the defect in its own bulletins.  I have owned four new GM vehicles since 1998, including two I kept for ten years each, with no A/C failures. This repeated defect is financially burdensome and potentially hazardous.  I request NHTSA investigate rear A/C evaporator failures in Buick Enclave models, determine whether a safety recall is warranted, and review whether GM’s special warranty coverage should be expanded to address repeat failures.","products":[{"type":"Vehicle","productYear":"2019","productMake":"BUICK","productModel":"ENCLAVE","manufacturer":"General Motors, LLC"}]}]}