The investigation into the crash is ongoing, with the police Serious Crash Unit called to the scene.
Police extended their sympathies to Greer's family and friends.
The highway reopened just after 5pm on Friday.
On Saturday, a person died following a serious crash between a car and a motorcycle at the intersection of State Highway 38 and Okaro Rd in Waimangu, south of Rotorua.
A second person was injured.
Emergency services were advised of the crash about 11am and Okaro Rd was closed until shortly before 5pm, with the highway down to one lane for some of that time.
On Friday, one person was seriously injured in a crash in the Athenree Gorge, north of Tauranga, and flown to Thames Hospital.
The crash, which closed State Highway 2 between Old Tauranga Rd and Athenree Rd for several hours, was reported to police shortly before 11am.
It happened on the highway near Arden and Mathers roads, about 2-3km from Old Tauranga Rd towards Tauranga.
Three other patients were taken to Tauranga Hospital in a moderate condition, a St John Ambulance spokeswoman said.
The highway reopened shortly before 6pm on Friday.
