TechnicianVision · Knowledge base
General Motors Position Statement: Pre- and Post-Repair System Scanning
I-CAR · October 21, 2016 · Chevrolet, GMC, Buick, Cadillac
Summary
General Motors requires both a pre-repair diagnostic scan during the estimation phase and a post-repair scan after completion for all collision-damaged vehicles. This process ensures all Diagnostic Trouble Codes (DTCs) are identified before repair and verified as resolved afterward, including any necessary calibrations or learns for replaced electronic components.
What to do on the job
Perform a pre-repair scan during estimation and a post-repair scan after completing repairs on all GM vehicles assessed for collision damage.
How to use it
Use this position statement to justify the necessity and billing of both pre- and post-repair diagnostic scans on all GM collision claims. It establishes that scanning is a mandatory requirement by the OEM to identify hidden DTCs during estimation and to verify successful repairs and calibrations before vehicle delivery.
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