TechnicianVision · Knowledge base
Fuel Economy Technology Systems: Grill Shutters
I-CAR · March 7, 2019
Summary
This article explains the function of active grille shutters, which improve vehicle aerodynamics and fuel economy by closing when engine cooling is not required. It highlights the importance of identifying these systems during front-end collision repairs, as they are easily damaged and require verification of proper operation and self-calibration.
What to do on the job
Identify if the vehicle is equipped with active grille shutters during front-end damage inspection, and verify their operation and self-calibration upon vehicle startup.
How to use it
Use this document to justify the inspection, replacement, and post-repair functional testing/scanning of active grille shutter systems on front-end collisions, noting that failure to restore these systems impacts fuel economy, emissions, and can trigger Diagnostic Trouble Codes (DTCs).
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