Automotive acronyms and abbreviations

The following items are commonly used automotive acronyms and abbreviations:5MT: 5-speed manual transmission A4: 4-speed automatic transmission A5: 5-speed automatic transmission A6: 6-speed automatic transmission ABS: Anti-lock braking system AC: Alternating Current A/C: Air conditioning ADAS: Advanced Driving Autonomous Systems ADB: Adaptive Driving Beam AdvHEV: Hybrid vehicle AHC: Automatic height controller AMT: Automated manual transmission AFL: Adaptive front light AFS: Adaptive front-light system ALH: Adaptive LED Headlights ATLS: Automated truck loading systems Autogas: LPG when used as a vehicle fuel AWD: All Wheel Drive BSM: Blind spot monitor CAB 1493: California Assembly Bill 1493 CARB: California Air Resources Board CCP: Coupled cam phasing CH4: Methane CNG: Compressed natural gas CO2: Carbon dioxide CTS: Cruising & Traffic Support CVVL: Continuous variable valve lift CVT: Continuously variable transmission DAA: Driver Attention Alert DC: Direct current DCP: Dual cam phasing DCT: Dual clutch transmission DeAct: Cylinder deactivation dHCCI: Diesel homogeneous charge compression ignition DMV: California Department of Motor Vehicles DOHC: Dual overhead cam DRL: Daytime Running Lights DRSS: Distance Recognition Support System DSC: Dynamic stability control DVVL: Discrete variable valve lift DVVLd: Discrete variable valve lift, includes dual cam phasing DVVLi: Discrete variable valve lift, includes intake valve cam phasing eACC: Improved electric accessories EAT: Electronically assisted turbocharging EFI: Electronic Fuel Injection EGR: Exhaust gas recirculation ehCVA: Electrohydraulic camless valve actuation emCVA: Electromagnetic camless valve actuation EHPS: Electrohydraulic power steering EPB: Electronic Parking Brake EPS: Electric power steering EMFAC: ARB emission factors modeling software (EMFAC2007 v.2.3 November 1, 2006) ESC: Electronic stability control ESP: Electronic stability program EWP: Electric water pump EWP: Elevating work platform FDC: Fixed displacement compressor FWD: Front-wheel drive FTP: Federal test procedure g/mi: grams per mile GDI: Gasoline direct injection GDI-S: Stoichiometric gasoline direct injection GDI-L: Lean-burn gasoline direct injection gHCCI: Gasoline homogeneous charge compression ignition GHG: Greenhouse gas GT: Gran/Grand turismo GVW: Gross vehicle weight GVWR: Gross vehicle weight rating GWP: Global warming potential HAD: Highly Autonomous Driving HBC: High Beam Control HC: Hydrocarbons HEV: Hybrid-electric vehicle HFC: Hydrofluorocarbon hp: Horsepower HSDI: High-speed (diesel) direct injection HUD: Automotive head-up display ICP: Intake cam phaser IGN: Ignition ImpAlt: Improved efficiency alternator ISG: Integrated starter-generator system ISG-SS: Integrated starter-generator system with start-stop operation L4: In-line four-cylinder LDT: Light-duty truck LDT1: a light-duty truck with a loaded vehicle weight of up to 3750 pounds. LDT2: an LEV II light-duty truck with a loaded vehicle weight of 3751 pounds to a gross vehicle weight of 8500 pounds LED: Light Emitting Diode LEV: Low-emission vehicle LPG: Liquified petroleum gas LVW: Loaded vehicle weight MAC: Mobile air conditioning MDPV: Medium-duty passenger vehicle MDV: Medium-duty vehicle mg/mi: Milligrams per mile ModHEV: Moderate hybrid MT: Manual Transmission NMOG: Non-methane organic gas N2O: Nitrous oxide NOx: Oxides of nitrogen PB: Power brakes PC: passenger car RPM: Revolutions Per Minute PS: Power steering R-134a: Refrigerant 134a, tetrafluoroethane (C2H2F4) R-152a: Refrigerant 152a, difluoroethane (C2H4F2) RCTA: Rear Cross Traffic Alert RPE: Retail price equivalent RWD: Rear Wheel Drive SULEV: Super ultra low emission vehicle SUV: Sport utility vehicle TBI: Throttle body injection TCS: Traction control system TRR: Tire rolling resistance TSR: Traffic Sign Recognition Turbo: Turbocharging ULEV: Ultra low emission vehicle V6: Vee-formation six-cylinder V8: V-formation eight-cylinder VDC: Variable displacement compressor ZEV: Zero-emission vehicle 4WD: Four-wheel-drive 42V ISG: 42-volt integrated starter-generator system

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