- Alignment
- The adjustment of a vehicle's suspension angles to ensure wheels are set to the manufacturer's specifications, affecting tire wear and handling.
- ASE Certification
- Automotive Service Excellence — a professional certification for automotive technicians, demonstrating competency in specific repair areas.
- Caliper
- A brake component that houses the brake pads and uses hydraulic pressure to clamp them against the rotor, creating friction to slow or stop the vehicle.
- Catalytic Converter
- An emissions control device in the exhaust system that converts toxic gases into less harmful emissions through chemical catalysis.
- CV Joint
- Constant Velocity Joint — a drivetrain component that transmits power from the transmission to the wheels while allowing for suspension movement and steering.
- Diagnostics
- The process of identifying vehicle problems using specialized scan tools, computer software, and systematic testing procedures.
- Differential
- A gear system that transfers engine power to the drive wheels while allowing them to rotate at different speeds, essential for smooth turning.
- OBD-II
- On-Board Diagnostics II — a standardized vehicle diagnostic system that monitors engine performance and emissions, accessible via a universal port.
- OEM
- Original Equipment Manufacturer — parts made by the vehicle's original manufacturer, as opposed to aftermarket alternatives.
- Rotor
- A flat, circular brake disc attached to the wheel hub that the brake pads clamp against to slow or stop the vehicle.
- Serpentine Belt
- A single, continuous belt that drives multiple engine accessories including the alternator, power steering pump, AC compressor, and water pump.
- Torque
- A measure of rotational force applied by the engine, typically measured in pound-feet (lb-ft), affecting acceleration and towing capability.