2017 GMC Yukon XL equipped with 5.3L V8 Gas OHV, 5.3L V8 Flex OHV
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SEE TSB 21-NA-199 FOR THERMAL BYPASS VALVE. INSTALL PER GM POLICIES AND PROCEDURES. FAILURE TO FOLLOW TSB MAY RESULT IN REJECTED WARRANTY CLAIM. Mfr Code: 6L80
2017 GMC Yukon XL equipped with 5.3L V8 Gas OHV, 5.3L V8 Flex OHV
SEE TSB 21-NA-199 FOR THERMAL BYPASS VALVE. INSTALL PER GM POLICIES AND PROCEDURES. FAILURE TO FOLLOW TSB MAY RESULT IN REJECTED WARRANTY CLAIM. Mfr Code: 6L80