Which person in a WRC crew reads pace notes to the driver?

The person in a WRC crew who reads pace notes to the driver is the co-driver.

The co-driver sits beside the driver and delivers a continual stream of shorthand instructions describing the road ahead. These notes can indicate corner direction and severity, distances, crests, jumps, surface changes, hazards and whether a corner tightens or should not be cut. The driver relies on them because special stages are too fast and visually demanding to memorise from sight alone.

During reconnaissance, the crew drives the route at controlled speed and creates or updates its own pace notes. In competition, the co-driver reads them through an intercom, timing each call so the information arrives early enough to be useful but not so early that it is forgotten.

The job involves much more than navigation. Co-drivers manage timecards, monitor time controls, communicate with the team and help avoid penalties. A marshal supervises safety, a scrutineer checks technical compliance and a team principal manages the organisation; none performs the pace-note role.