He cares a lot about proving himself to Optimus and being a good leader which he already is. Heatwave is brave, responsible, caring (though he tries to hide it) and a good leader. The people accepted them as aliens, even though Huxley Prescott and Milo were skeptical about it. In Season 4, Episode 1 ('New Normal'), after they defeated the Velgrox, he revealed to the people on Griffin Rock that they were not just metal rescue robots, but aliens. However, from that time on, they form a bond of trust, respect, and friendship (though neither would willingly admit it). The two initially have a hard time working together, truly only working together when Cody is in danger. Heatwave assumed the form of a firetruck, as it was similar to what he used to do on Cybertron, and is partnered with Kade Burns. When Optimus told him that the humans were accustomed to technology but wouldn't feel comfortable with sentient robots around them, Heatwave grumbled about the indignity of having to pretend to be an unfeeling machine in order to aid regular humankind. After Optimus told them that they would need to appear as 'robots in disguise', Heatwave immediately expressed resentment. He and the others awoke to Optimus Prime's voice, alerting them to go to Earth. Barely escaping, they entered stasis and set the autopilot back to cybertronian space.

Having been on routine patrol before the war between Autobots and Decepticons erupted, Sigma 17 was responding to a distress call that led them into an encounter with an energon draining organism. Heatwave and the rest of the Rescue Bots were originally Cybertron Rescue Team Sigma 17, a space rescue team.

Tr_walkway not spawning bots