Several high-pressure exhaust charge DTCs may set on some 2019-2022 Silverado, Sierra; 2021-2022 Tahoe, Suburban, Escalade; and 2022 Yukon models equipped with the 5.3L engine (RPO L84) or 6.2L engine […]

Some 2021-2022 Encore and Trax models equipped with the 1.4L engine (RPO LE2) may have DTC P0442, (Evaporative Emission [EVAP] System Small Leak Detected) set in the ECM. The DTC […]

Some 2020-2022 CT4 and CT5 models equipped with the limited-slip differential (RPO G80) may have a moan sound during left or right turns. The condition may be caused by a […]

A rattle sound from under the vehicle while driving may be heard on some 2021-2023 Silverado 1500, Silverado 2500HD/3500HD, Tahoe, Suburban, Sierra 1500, Sierra 2500HD/3500HD, Yukon, Escalade; and 2022 Silverado […]

Residue on the rear liftgate strut (Fig. 8) of some 2018-2020 Enclave, Traverse; 2020-2022 Acadia, XT5 and XT6 models is not a fluid leak that requires strut replacement. The residue […]

While fording a river with the 2022 HUMMER EV pickup (Fig. 11), an excessive amount of water may slow or stop the cooling fan from spinning, which may cause DTC […]

A rattle or clunk sound may be heard at the front of the vehicle on some 2017-2023 Acadia; 2018-2023 Traverse; 2019-2023 Blazer; and 2020-2023 XT5 models. The sound may seem […]