Cadillac TSB #21NA229
2020 Cadillac XT4
Affected Component: STRUCTURE:BODY:BUMPERS:ACTIVE SHUTTERS/GRILL
- Summary
- This service bulletin provides a procedure to install a winter grille cover to correct the customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing, Malfunction Indicator Lamp (MIL) Illuminated.