OEM parts categories for 2018 Buick Lacrosse: Body Moldings, Sheet Metal, Rear Compartment Hardware, Roof Hardware (Insulators/Body, Moldings/Body, Nameplates, Plugs/Body, Rear Compartment Hardware, Sheet Metal/Body-Side Frame, Sheet Metal/Front Compartment, Sheet Metal/Roof, Sheet Metal/Side Door-Front & Rear, Sheet Metal/Underbody & Rear End, Spoiler/Rear Compartment Lid, Sunroof, Sunroof Drainage, Valve/Body Pressure Relief, Wheelhouse Liner/Rear) | Body Mounting, Air Conditioning, Audio/Entertainment (A/C & Heater Module Assembly, A/C & Heater Module Assembly Mounting, A/C Compressor Assembly, A/C Compressor Mounting, A/C Control System, A/C Refrigeration System, Air Distribution System, Antenna/Audio, Antenna/Digital Audio, Audio System, Camera System/Rear View, Communication System "Onstar", Infotainment System, Radio Mounting) | Body Wiring, Roof Trim (Wiring Harness/Body) | Brakes (Brake Booster, Brake Booster & Master Cylinder Mounting, Brake Caliper/Front, Brake Caliper/Rear, Brake Electrical System, Brake Lines/Front, Brake Lines/Rear, Brake Master Cylinder, Brake Pedal, Brake Pressure Modulator Valve, Chassis Control Module, Parking Brake System) | Brakes, Rear Axle, Propeller Shaft, Wheels, Tires (Axle Shaft/Rear, Prop Shaft And Mounting, Rear Differential Carrier, Rear Differential Carrier Mounting, Tire, Tire Inflator, Tire Pressure Sensor, Wheels) | Cooling System, Grille, Oil System (Air Deflector/Underbody, Engine Block Heater, Engine Coolant Fan, Grille/Radiator, Hoses & Pipes/Radiator, Pulleys & Belts/Accessory Drive, Radiator Assembly, Radiator Mounting & Related Parts, Radiator Support) | Engine (Engine & Transmission Mounting, Engine Assembly & Partial Engine, Engine Assembly-Camshaft Cover & Coil, Engine Assembly-Cylinder Block & Internal Parts, Engine Assembly-Cylinder Head & Related Parts, Engine Assembly-Front Cover & Cooling, Engine Assembly-Manifold & Fuel Related Parts, Engine Assembly-Oil Pump & Balance Shaft Detail, Oil Pan & Related Parts, Engine Assembly-Timing Chain & Tensioner, Engine To Transmission Mounting, Intake Manifold Shield/Covers) | Frames, Springs, Shocks, Bumpers, Fascias (Absorber/Rear Shock, Bumper/Front Fascia, Bumper/Front Structure, Bumper/Rear, Frame & Mounting, License Plate Mounting/Front, Suspension Controls/Electronic, Suspension/Rear-Control Arms, Spring & Stabilizer Bar, Suspension/Rear-Knuckle Details, Suspension/Rear-Support And Mounting) | Front End Sheet Metal, Heater (Fender & Wheelhouse/Front End, Fender Vent, Guard/Mud-Front & Rear, Hood, Hoses & Pipes/Heater, Labels, Paint/Touch-Up, Sight Shield/Engine Compartment, Spare Wheel Stowage & Jack Parts, Vehicle Maintenance) | Front Suspension, Steering (Drive Axle/Front Intermediate, Drive Shaft/Front Wheel LH Side, Drive Shaft/Front Wheel RH Side, Steering Column/Switches & Covers, Steering Gear Assembly, Steering System & Related Parts, Steering Wheel & Horn Parts, Strut Assembly/Front, Suspension/Front) | Fuel System, Exhaust, Emission System (Accelerator Control, Air Intake System, E.C.M. Module & Related Parts, Exhaust System/Front, Exhaust System/Rear, Fuel Control Module, Fuel Injector Rail, Fuel Supply System, Fuel Tank & Vapor Canister, Fuel Tank And Mounting, Fuel Tank Filler Pipes & Hoses, Heat Shields/Exhaust) | Interior Trim, Front Seat Trim, Seat Belts (Front Seat Mounting, Inflatable Restraint System/Driver & Passenger, Inflatable Restraint System/Roof Side, Roof Headliner, Seat Assembly/Left Hand Front-Back, Seat Assembly/Left Hand Front-Cushion, Seat Assembly/Right Hand Front-Back, Seat Assembly/Right Hand Front-Cushion, Seat Belt Extension, Seat Belts-Rear, Seat Belts/Front, Trim/Center Pillar & Quarter, Trim/Front, Trim/Front Door-Driver, Trim/Front Door-Passenger, Trim/Rear Door) | Power Transfer Unit (Power Transfer Unit, Power Transfer Unit Mounting) | Rear Glass, Seat Parts, Adjuster (Quarter Window & Rear Window) | Rear Seat Trim, Carpet (Cargo Net, Carpet/Floor, Compartment Trim/Rear, Compartment/Rear Storage, Rear Seat Mounting, Seat Assembly/Rear-Back Detail, Trim/Back Window Shelf) | Starter, Generator, Ignition, Electrical, Lamps (Battery Cables, Battery Mounting, Block/Instrument Panel Junction, Drive Motor Battery, Drive Motor Battery Cables, Drive Motor Battery Cooling/System, Drive Motor Battery Mounting, Drive Motor Control Module & Mounting, Drive Motor Control Module Cooling, Generator Cables, Generator Cooling System, Generator Mounting, Headlamp Control, Horn, Lamps/Front, Lamps/Rear, Module/Body Control, Module/Multifunction Power Converter, Module/Noise Cancellation, Module/Serial Data Gateway, Reflector/Disabled Vehicle, Relays/Engine Compartment, Sensor System/Forward Collision, Sensor System/Forward Collision-Camera, Sensor System/Forward Collision-Control Module, Sensor System/Forward Collision-Forward Range Radar, Sensor System/Front & Rear Object, Sensor System/Rear Object, Sensor System/Side Collision, Starter Motor And Mounting, Wiring Harness Connectors, Wiring Harness Terminated Leads, Wiring Harness/Engine, Wiring Harness/Instrument Panel) | Transmission - Automatic (Automatic Transmission 1-Reverse And 1-2-3-4-5-6 Clutch Piston Housing Assembly, Automatic Transmission 2-6 Low & Reverse & 1-2-3-4 Clutch Plate, Automatic Transmission 2-9 And 3-8 Clutch Plate Assemblies, Automatic Transmission 2-9 And 4Th Clutch Hub Assembly, Automatic Transmission 3-5 Reverse Clutch, Automatic Transmission 4-5-6 Clutch, Automatic Transmission 5-7-Reverse And 6-7-8-9 Clutch Housing Assembly, Automatic Transmission Assembly, Automatic Transmission Auxiliary Fluid Pump, Automatic Transmission Case & Related Parts, Automatic Transmission Case, Drive Link, 4th Clutch & Accum, Automatic Transmission Clutch Housing Assembly, Automatic Transmission Clutch Piston Housing Assembly, Automatic Transmission Control Valve Body, Automatic Transmission Control Valve Solenoid Body Assembly, Automatic Transmission Differential Carrier, Automatic Transmission Input, Output & Reaction Gearsets, Automatic Transmission Oil Cooler Pipes, Automatic Transmission Oil Pump, Automatic Transmission Output Carrier Transfer Drive Gear Hub Assembly, Automatic Transmission Park System, Automatic Transmission Park System Components, Automatic Transmission Torque Converter & Differential Housing Assembly, Shift Control/Automatic Transmission, T.C.M. Module) | Windshield, Wiper, Mirrors, Instrument Panel, Console, Doors (Door Hardware/Front, Door Hardware/Rear, Entry System/Keyless Remote, Floor Console Mounting, Floor Console Upper, Floor Console-Lower, Floor Console/Ashtray, Instrument Panel Lower LH, Instrument Panel Lower RH, Instrument Panel-Upper, Instrument Panel/Center Stack, Instrument Panel/Structure, Mirror/Inside Rear View, Mirror/Outside Rear View, Roof Console, Windshield Trim & Hardware, Wiper System/Windshield)