Chevrolet TSB #PIT5420F
2018 Chevrolet Colorado
Affected Component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE
- Summary
- This Preliminary Information communicates information to the technician about vehicles that may have a water rush or gurgle type noise from the center dash area. Engineering is aware of the concern and it is under investigation. Inspect the system for coolant leaks and proper coolant level. No other repairs are to be performed at this time.