It's got a fuel cut-off switch. It's part of the alarm system.
3 seconds sound clip from the Nothing but Trouble (1991) movie soundboard.
You can hear this line at 01:25:15.020 in the Blu-ray version of the movie.
Quote context
[...]
- And since you know what you know, I'm afraid we're gonna have to come to some kind of a...
- It's the coal fire! The seams are giving way! Run for your lives!
- Come on, grab me! Grab me! I'm not gonna lose you now! Come on! Gotcha.
- Hey, what's all that shaking?
- I don't know. I didn't do anything.
- No. Come on, it won't start.
- It's got a fuel cut-off switch. It's part of the alarm system.
- No roof.
- Ai Fausto. That was the most adventurous weekend of my entire life.
- When I think about what happened in Valkenvania, I would do it again.
- Not me.
- Don't worry, Dennis. Now that you are head of our personal security...
[...]