2021 GMC Sierra 1500 equipped with 4.3L V6 Gas OHV
1
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. Eng: LV3 8th VIN Digit: H Mfr Code: 6L80
2021 GMC Sierra 1500 equipped with 4.3L V6 Gas 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. Eng: LV3 8th VIN Digit: H Mfr Code: 6L80
1 Per Vehicle
2021 GMC Sierra 1500 equipped with 5.3L V8 Gas OHV, 5.3L V8 Flex OHV
1
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. Eng: L82 8th VIN Digit: F Mfr Code: 6L80
2021 GMC Sierra 1500 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. Eng: L82 8th VIN Digit: F Mfr Code: 6L80