2020 Chevrolet Tahoe: A/C quit working low refrigerant
Common wear/failure (not a recall)
Symptoms
Owners of the 2020 Tahoe report: A/C quit working low refrigerant. CarComplaints.com lists 2 owner complaints, average mileage 75,500 miles.
NHTSA has 2 owner complaints for the 2020 Tahoe in this area. Examples:
- NHTSA complaint ODI #11730381 (filed 04/10/2026): “The air conditioning system fails to cool. my vehicle only has 47,000 miles on it currently and is well-kept. a professional garage inspected and advised that there was a leak in the refrigerant system. i contacted my local chevrolet dealer jeff gordan chevrol…”
- NHTSA complaint ODI #11355646 (filed 09/17/2020): “Strong smell to fumes when turning on ac or vent system.…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: dealer found leaking rear evaporator on rear A/C system (1 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Opening the A/C system requires refrigerant recovery equipment, and US EPA Section 609 certification is required to service vehicle A/C for compensation. (Our assessment.)
Cost
CarComplaints.com owners report a typical repair cost of about $1,700 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .