Chucky accuses Jake of having completion anxiety, which is what Nica accused him of having in Curse of Chucky.
The letters of the opening titles are made up of various tools from the Wheeler garage: scythes, sickles, saws, shovels, gardening cultivator, etc.
After seven films and the first two episodes, this is the first time Brad Dourif's Chucky hasn't been written by Don Mancini (excluding the remake) although he still receives a "based on the characters by" credit.
When Devon's mother walks into his room to talk to him about Jake, there is a giant Police Detective poster on the wall with a woman holding a laundry basket. His mother, who is also a police detective, walks in holding a laundry basket mimicking the poster.
In Devon's room, there are newspaper clippings on a wall. That clearly shows Devon's interest in real life serial killers the BTK Strangler, and The symbol of the Zodiac Killer is also seen. Along with several other interesting references.