General Motors has developed a solution to the front-end rattle or clunking sound that owners of certain 2018 to 2023 model-year Chevy Traverse models have reported.
According to the GM Techlink service website, a “rattle or clunk sound may be heard at the front of the vehicle on some” 2018-2023 model-year Chevy Traverse models. This is the result of “a loose, mispositioned or improperly torqued cradle brace,” the automaker says, however technicians should double check to ensure the root cause is not a more common problem, such as a loose strut or sway bar. The cradle brace is a flat bar that is bolted across the center of the engine cradle (labeled #1 in the diagram below).
Technicians can determine if the rattle or clunk sound is coming from the cradle brace, as opposed to a loose suspension or steering component, by removing the cradle brace and driving the vehicle for a short period while driving over small bumps or executing turning maneuvers. If the sound is no longer heard, it’s likely it was due to a loose or misaligned cradle brace.
To fix the problem, the technicians should re-install the cradle brace and ensure the bolts are torqued to spec. GM also notes the fasteners used on the cradle brace at single-use torque-to-yield fasteners, so the technicians must use new fasteners when tightening the brace back down to ensure it does not come loose again.
This problem may affect 2018 to 2023 model-year Chevy Traverse crossovers, as well as other C1XX-platform GM crossovers from certain model years, such as the GMC Acadia, Chevy Blazer and Cadillac XT5.
The second-generation Chevy Traverse went on sale for the 2018 model year. Production of the 2023 model year Traverse started at the GM Lansing Delta Township Assembly facility in Michigan on June 6th, 2022.