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  <xs:element id="gntx_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_OtherProductsMember" abstract="true" name="OtherProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrants" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrants" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="gntx_PerformanceShareAwardsMember" abstract="true" name="PerformanceShareAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gntx_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="gntx_LongTermInvestmentsMember" abstract="true" name="LongTermInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_RevenueFromContractWithCustomerPaymentTerms" abstract="false" name="RevenueFromContractWithCustomerPaymentTerms" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="gntx_RestrictedCashFairValueDisclosure" abstract="false" name="RestrictedCashFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_SummaryofSignificantAccountingandReportingPoliciesTable" abstract="true" name="SummaryofSignificantAccountingandReportingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="gntx_NonQualifiedStockOptionMember" abstract="true" name="NonQualifiedStockOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_AllowanceForDoubtfulAccountsPolicyTextBlock" abstract="false" name="AllowanceForDoubtfulAccountsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="gntx_SummaryOfSignificantAccountingAndReportingPoliciesLineItems" abstract="true" name="SummaryOfSignificantAccountingAndReportingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="gntx_HomeLinkMember" abstract="true" name="HomeLinkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_DeferredCompensationArrangementWithIndividualTrancheOneMember" abstract="true" name="DeferredCompensationArrangementWithIndividualTrancheOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_SelfInsurancePolicyTextBlock" abstract="false" name="SelfInsurancePolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="gntx_PatentAndOtherAssetsNet" abstract="false" name="PatentAndOtherAssetsNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_AutomotiveProductsMember" abstract="true" name="AutomotiveProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_AllowanceForObsoleteAndSlowMovingInventories" abstract="false" name="AllowanceForObsoleteAndSlowMovingInventories" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_InvestmentLengthAxis" abstract="true" name="InvestmentLengthAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="gntx_MedicalMember" abstract="true" name="MedicalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gntx_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountRecognizedAsCompensationExpense" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountRecognizedAsCompensationExpense" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="gntx_FourYearsMember" abstract="true" name="FourYearsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_GainOnDispositionOfAssets" abstract="false" name="GainOnDispositionOfAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_ScheduleofFiniteLivedandIndefiniteLivedIntangibleAssetsLineItems" abstract="true" name="ScheduleofFiniteLivedandIndefiniteLivedIntangibleAssetsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="gntx_AdaskyMember" abstract="true" name="AdaskyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gntx_ESightCorporationMember" abstract="true" name="ESightCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gntx_GuardianOpticalTechnologiesMember" abstract="true" name="GuardianOpticalTechnologiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_DeferredCompensationArrangementWithIndividualTrancheTwoMember" abstract="true" name="DeferredCompensationArrangementWithIndividualTrancheTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_FireProtectionProductsMember" abstract="true" name="FireProtectionProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAsset" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_GentexCorporationEmployeeStockPurchasePlanMember" abstract="true" name="GentexCorporationEmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_AdaskyCommonStockMember" abstract="true" name="AdaskyCommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gntx_DeferredCompensationArrangementWithIndividualVestingPercentage" abstract="false" name="DeferredCompensationArrangementWithIndividualVestingPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="gntx_InvestmentLengthDomain" abstract="true" name="InvestmentLengthDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_VolkswagenGroupMember" abstract="true" name="VolkswagenGroupMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_AutomotiveProductsSegmentMember" abstract="true" name="AutomotiveProductsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_BusinessAcquisitionOwnershipInterestInAcquireeHeldPriorToAcquisition" abstract="false" name="BusinessAcquisitionOwnershipInterestInAcquireeHeldPriorToAcquisition" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="gntx_LossOnDispositionOfAssets" abstract="false" name="LossOnDispositionOfAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_OneYearMember" abstract="true" name="OneYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_FiveYearsMember" abstract="true" name="FiveYearsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="gntx_DeferredTaxLiabilitiesDeferredExpenseExcessTaxOverBookDepreciation" abstract="false" name="DeferredTaxLiabilitiesDeferredExpenseExcessTaxOverBookDepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_DeferredTaxAssetsTaxDeferredExpenseExcessTaxOverDepreciation" abstract="false" name="DeferredTaxAssetsTaxDeferredExpenseExcessTaxOverDepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gntx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedNetOfSharesCanceledOrExpired" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedNetOfSharesCanceledOrExpired" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
</xs:schema>
