The problem: certain units of the Chevy Equinox, Chevy Malibu, Chevy Trax, and Chevy Cruze may exhibit a condition wherein ice or sludge will accumulate in the Charge Air Cooler (CAC) or Closed Crankcase Ventilation (CCV) system while driving in extremely cold weather, or rather, 0 degrees Fahrenheit and below.
The hazards: If ice or sludge accumulates in the vehicle CAC or CCV system, it may result in a number of engine issues, including performance loss, an oil leak, incorrect boost levels, or various Diagnostic Trouble Codes (DTCs).
The fix: to address this issue, a GM technician will install a TCV thermal wrap on the engine and, if needed, reprogram the Engine Control Module (ECM). A new turbocharger wastegate regulator solenoid valve may also be installed. GM technicians are instructed to remove the turbocharger wastegate regulator solenoid valve, test, apply the thermal wrap, and either recalibrate of verify the ECM programming, as well as clear any possible DTCs that may have triggered.
Affected components: vehicle CAC or CCV system.
- 2016 through 2019 Chevy Cruze
- 2018 through 2022 Chevy Equinox
- 2016 through 2021 Chevy Malibu
- 2013 through 2022 Chevy Trax
Number of affected vehicles: it’s unknown at this time how many vehicles are affected by this GM service update.
Owners should: owners can contact Chevrolet directly with any concerns they may have using the contact information listed below. GM has stipulated that this service update applies to vehicles in dealer inventory and customer vehicles that return to the dealership for any reason.
- GM Service Update number: N222372590
- Chevy U.S. Customer Service: 1-800-222-1020