| ACK | Acknowledgment |
| ACM | Airbag Control Module |
| ACU | Airbag Control Unit - the Nissan designation for the ACM found in Nissan vehicles |
| AHR | Active Head Restraint |
| BMW | Bavarian Motor Works AG vehicles - includes BMW, MINI and Rolls-Royce brands |
| CAN | Controller Area Network |
| CDR | Crash Data Retrieval |
| D2M | Direct-to-Module |
| Daimler | Daimler AG vehicles - includes Mercedes-Benz and smart brands |
| DLC | Diagnostic Link Connector (also known as Data Link Connector) |
| DTC | Diagnostic Trouble Code |
| ECU | Electronic Control Unit |
| EDR | Event Data Recorder |
| EPPM | Electronic Pedestrian Protection Module (also see PPM) |
| ESC | Electronic Stability Control |
| ESP | Electronic Stability Program |
| ETC | Electronic Throttle Control |
| ETR | Engineering Translation Report |
| FCA | Fiat Chrysler Automobiles vehicles - includes Alfa Romeo, Chrysler, Dodge, Fiat, Jeep, Lancia, Maserati, RAM and SRT brands |
| Ford | Ford Motor Company vehicles - including Ford, Lincoln and Mercury brands |
| General Motors | General Motors Company vehicles (also known as GM) - includes Buick, Cadillac, Chevrolet, Geo, GMC, Holden, HSV, Hummer, Oldsmobile, Opel, Pontiac, Saab and Saturn brands |
| GM | General Motors |
| Honda | Honda Motor Company Ltd. Vehicles - includes Acura and Honda brands |
| MY | Model Year |
| NHTSA | National Highway Traffic Safety Administration (USA) |
| Nissan | Nissan Motor Company Ltd. Vehicles - includes Infiniti and Nissan brands |
| NTSB | National Transportation Safety Board (USA) |
| OBD II | Onboard Diagnostic system version 2 |
| OE | see OEM |
| OEM | Original Equipment Manufacturer (also known as OE) - in the automotive industry, refers to the car manufacturer |
| ORC | Occupant Restraint Control - the FCA designation for the ACM found in FCA vehicles |
| PCM | Powertrain Control Module |
| PC | Personal Computer |
| PPM | Pedestrian Protection Module |
| RCM | Restraint Control Module - the Ford designation for the ACM found in Ford vehicles |
| ROS | Roll Over Sensor |
| SDM | Sensing Diagnostic Module - the General Motors designation for the ACM found in General Motors vehicles |
| Toyota | Toyota Motor Corporation vehicles - includes Lexus, Scion, and Toyota brands |
| VIN | Vehicle Identification Number |
| Volkswagen | Volkswagen Group vehicles - includes Audi, Bentley, Lamborghini and Volkswagen brands |
