When Jake is given a burner phone by Doug Judy, he receives a text message from the 'Pontiac Bandit'. The phone is an old cellphone from the late 90s, but the text message makes an iPhone sound/tone from the late 2000s. He receives another text message again later with the same tone.
When Terry is introducing the team to Capt. Holt, he mentions Scully, Hitchcock, and Daniels. Daniels doesn't make an appearance after the pilot.