The fourth season of Tayo the Little Bus premiered on August 31, 2016 with Nice To Meet You, Peanut and ended on November 24, 2016 with The Little Buses Play.
- Nice To Meet You, Peanut
- You Are Special
- Please Believe Me
- The New Emergency Center
- Who Is The Real Tayo?
- Chris Wants Recognition
- Rogi's Junk Treasure
- Tayo Becomes a Police Officer
- Trammy's First Day at Work
- Who Is Cooler?
- Mountain Ghost Incident
- Trammy's Secret
- Peanut's Misunderstanding
- We Love Fairy Tales
- Asura the Little Wizard
- The Best Detective
- Give Me Courage
- Tayo Goes To the Countryside
- We Are All Friends
- Kinder's Field Trip
- Citu's Secret Playground
- Thank You, Ms. Teach!
- A Day with Booba
- A Present For Hana
- Duri's Homework
- The Little Buses Play
- This season marks the only of a few things:
- This is the only season to feature someone else (that someone else would most likely be Trammy) says the name of the show during short intros. Tayo says the name of the of the show in Season 5 during short intros.
- This is the only season appearance of Asura (until Tayo and Little Wizards), Star Tayo (known as Fake Tayo), and Moo Moo.
- This season marks a thing that has happened twice:
- This is second season where the new main character had introduced in season's first episode. (in this case, Peanut), after Heart in Season 3 and third being Long in Season 6.
- In Espanol Dub. Nana and Trammy becomes male instead of female.
- This is first season where Reo is absent, the second being Season 5.
- This is first season where the character from spin-off series had makes only debut appearance in the mainline series. (in this case, Asura). the second being Season 5. (which is Tino).
- This is first season to not include the space adventure special episodes.
- This the first season to not feature any special episodes. the second being Season 6.
- This is first season appearance of Kinder, Trammy, Duri's Father, Sky, Peanut, Jimmy and Jenny.
- This is first season location appearance of a emergency center, secret playground, garbage dump/junkyard, tram station, park and a mountain.
- This season marks the returning appearance of Andy, an character which first appeared in Season 2's The Perfect Duo, Rookie and Pat.
- This season marks the last of a few things:
- This is the last season in which, Toni, Rubby, Speed, and Toto have proper male voices. In Season 5, Speed retains his male voice but Toni, Rubby, and Toto are given female voices.
- This is the last season appearance of Met as he was replaced with some characters from the spin-off series, Titipo Titipo in Season 5.
- This is the last season appearance of Fire Ball, as his role was replaced by Guardian X in Season 5.
- This is the last season to feature the original animation background style until Season 5 which moves to a new animation background style.