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  <xsd:element abstract="true" id="gntx_SummaryofSignificantAccountingandReportingPoliciesTable" name="SummaryofSignificantAccountingandReportingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gntx_SwingLoansMember" name="SwingLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gntx_TermLoanMember" name="TermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gntx_ToyotaMotorCorporationMember" name="ToyotaMotorCorporationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gntx_UnrecognizedTaxBenefitsDecreasesResultingFromCompletedAuditExaminations" name="UnrecognizedTaxBenefitsDecreasesResultingFromCompletedAuditExaminations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gntx_VwAudiMember" name="VwAudiMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
