GMW GMW3046 PDF

Introduction

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 

Purpose. To validate the performance of the vehicle defroster system to defrost the interior surface of the windshield when influenced by snow ingestion with and without a HVAC filler (if part of the originally equipped HVAC system). See Figure 1. 

Applicability. For all passenger vehicle defroster systems with and without filter(s).