We will be closed on November 24th Success - Honest-1 Diamond Bar Diamond Bar Auto Care 4.8 (897 ) (909) 396-9700 Mon - Fri: 8:00 AM - 6:00 PMSat: 7:00 AM - 4:00 PM Toggle MenuHomeAbout UsOur FacilityCar care and safety tipsContact UsEco friendlyServicesAuto Battery ReplacementAuto InspectionAuto RepairAuto SuspensionBrake RepairBranded Auto RepairCheck Engine LightClutch RepairEngine RepairHeating, Ventilation and A/C (HVAC)Oil ChangePreventative MaintenanceFuel System CleaningTune Up ServiceTiming Belt ReplacementRadiator RepairTruck RepairWheel AlignmentVehiclesNationwide WarrantyCouponsAppointmentsReviewsDirectionsHomeSuccessThank you. Your appointment request has been submitted.Honest-1 Diamond Bar is committed to ensuring effective communication and digital accessibility to all users. We are continually improving the user experience for everyone, and apply the relevant accessibility standards to achieve these goals. We welcome your feedback. Please call Honest-1 Auto Care Diamond Bar (909) 396-9700 if you have any issues in accessing any area of our website.