ai-sirens
Emergency vehicle lights, three siren tones, airhorn and manual siren, firetruck and ambulance tones, and ONX lightbars.
ai-sirens gives the driver of an emergency vehicle control over its lights and siren. Every player near sees the lights and hears the same tone.
What it does in the game
Only emergency class vehicles (GTA class 18) listed in the panel get siren control. Sitting in the driver seat of one:
- Lights. Q turns the emergency lights on or off. Turning the lights off also stops the siren.
- Siren. Left Alt starts the siren on tone 1 (the lights must be on) or stops it.
- Tone. Y switches to the next tone (1, 2, 3, back to 1) while the siren runs. With the siren off, holding it plays the manual siren.
- Airhorn. Hold E for the airhorn.
- Firetrucks keep their own wail on tone 1, and their airhorn and tone 3 are fire truck sounds. Ambulances (and other listed models) play the powercall on tone 1.
- Leaving the car. With the panel's switch on, the siren sound stops when the driver gets out; the lights stay on.
- ONX lightbars. An unmarked car with the ONX lightbar pack gets a lightbar picked by a tuning slot (slot 49 by default). Each player's game draws its own copy, and it flashes with the vehicle's lights. Vehicles with an ONX lightbar use the ONX tones.
- GTA's far away police sirens that play on their own can be silenced.
Installation
Installed by the AI Core recipe. By hand: ensure ai-sirens after ai-core.
For lightbars, stream the ONX lightbar models (emergency-b-lightbars) and set the vehicle's tuning slot to a value from the panel's list (at a tuning shop or with your own script).
Add-on police, fire and ambulance cars must be added to Emergency vehicle models, or the server refuses their siren changes.
Panel settings
Admin panel > Sirens.
Tab: Sirens
How emergency vehicles sound: tones, airhorn, firetrucks and ambulances.
General: emergency vehicles (class 18) get the siren keys: lights, siren, tone, airhorn; every player near hears them.
| Setting | What it changes | Default |
|---|---|---|
| No distant sirens | Silences GTA's far away police sirens that play on their own. | on |
| Siren stops when the driver gets out | On: leaving the driver seat turns the siren sound off (the lights stay). | on |
| Emergency vehicle models | Only these models get sirens, airhorn and lightbars; add your add-on police, fire and ambulance cars here. Empty: every emergency class vehicle. Up to 200. | ambulance, fbi, fbi2, firetruk, lguard, pbus, police, police2, police3, police4, policeb, policeold1, policeold2, policet, pranger, riot, riot2, sheriff, sheriff2 |
| Firetruck models | These keep their own wail on tone 1, their airhorn and tone 3 are the fire truck sounds. | firetruk |
| Ambulance tone models | Tone 1 of these models plays the ambulance powercall. | ambulance, firetruk, lguard |
Tones: the game sounds of the three siren tones for normal emergency vehicles.
| Setting | Default |
|---|---|
| Tone 1 | VEHICLES_HORNS_SIREN_1 |
| Tone 2 | VEHICLES_HORNS_SIREN_2 |
| Tone 3 | VEHICLES_HORNS_POLICE_WARNING |
Tab: Lightbars
ONX lightbars attached from a tuning slot, and the ONX siren tones.
ONX lightbars: needs the ONX lightbar models streamed (emergency-b-lightbars); each player's game draws its own copy, nothing spawns on the network.
| Setting | What it changes | Default |
|---|---|---|
| Attach lightbars | Off: no lightbars are attached. | on |
| Tuning slot | The vehicle mod slot that picks the lightbar (49 in the ONX pack). 0-49. | 49 |
| Models with ONX tones | These always use the ONX tones; vehicles with an ONX lightbar use them anyway. | empty |
| Lightbar per slot value | Which lightbar model each value of the tuning slot attaches (Add a lightbar: Slot value 0-100, Lightbar model). Up to 40 rows. | 4-13: onx_pol_lbar_* police bars, 14-16: onx_ems_lbar_*, 17-19: onx_amb_lbar_* |
ONX tones: the siren tones of vehicles with an ONX lightbar or listed above.
| Setting | Default |
|---|---|
| Tone 1 | RESIDENT_VEHICLES_SIREN_WAIL_02 |
| Tone 2 | RESIDENT_VEHICLES_SIREN_QUICK_02 |
| Tone 3 | VEHICLES_HORNS_POLICE_WARNING |
Commands
None.
Keybinds
Active only in the driver seat of an emergency vehicle. Players change them in GTA's key settings (FiveM section); the owner changes the defaults in the admin panel (Keybinds).
| Default key | What it does |
|---|---|
| Q | Siren: emergency lights on / off |
| Left Alt | Siren: main siren on / off |
| Y | Siren: next tone (hold for the manual siren while it is off) |
| E | Siren: airhorn (hold) |
While driving an emergency vehicle, the game's horn, radio and cinematic camera keys are taken over by these.
Known limits
- The server cannot read a vehicle's class, so it trusts the Emergency vehicle models list. An empty list lets every model change siren state.
- The click sound from outside sound resources and pursuit mode tone sync of the original tgiann-siren-control are not included; a game sound plays instead of the click.