One problem related to crankcase (pcv) has been reported for the 2021 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 GMC Sierra 1500 based on all problems reported for the 2021 Sierra 1500.
Transmission failed, value body is listed by dealer as the cause. GMC is saying that my vehicle is not part of the recall, even though it is part of the same model, same years as well as the same problem, the value body on the transmission. See estimate from dealership tucks GMC hudson, MA transmission replacement with bypass valve $6800. 00 radiator replacement leaking $1980. 00 abs traction light wheel speed sensor $395. 00 check engine light is on needs pcv valve hose and solenoid $430. 00 oil leak between engine and transmission ?.