Phone Number Codes:
Press Up to display Niko's cellphone during game play. Press Up again to access the keypad. Enter one of the following codes to activate the corresponding cheat function. Note: Once a code has been entered correctly, a new "Cheats" menu option will be available on your phone, below "Options", where you can access the cheats without having to enter the phone number again. Do not save the game after enabling a code to avoid unforeseen problems. Enabling some codes may prevent achievements from being unlocked.
Note: You can usually only spawn one vehicle at a time. Any previously spawned vehicles will disappear. However if you spawn a vehicle, save the game, then load again, you can spawn another one and your original will not disappear. You must have it in your parking space in front of a safehouse, or it will be gone before you have a chance to spawn another.
Furthermore, to not allow a previously spawned vehicle disappear, spawn the first vehicle, get into it, then spawn the second one. The first one will not disappear. You can do this only inside the first vehicle; if you get off and spawn a new one, both will disappear. Park them, save the game, and load it again. You will have both vehicles. Keep doing this to get more.
If you use cheat codes and complete the game, after the last level, you are able to free roam but it is constantly raining with lightning and thunder. The "Change weather and brightness" code works, but after a few minutes the weather will change back to a thunderstorm.
CHEAT FUNCTION : PHONE NUMBER
Restore Niko's health, armor, and ammunition & repair vehicle - 4825550100
Full health & Repair Vehicle - 3625550100
Weapons tier 1 (baseball bat, handgun, shotgun, MP5, M4, sniper rifle, RPG, and grenades) - 4865550150
Weapons tier 2 (knife, Molotov cocktails, handgun, shotgun, Uzi, AK47, sniper rifle, and RPG) - 4865550100
Remove Niko's wanted level - 2675550100
Add one star to Niko's wanted level - 2675550150
Change weather and brightness - 4685550100
Spawn Annihilator police helicopter - 3595550100
Spawn Jetmax - 9385550100
Spawn NRG-900 - 6255550100
Spawn Sanchez - 6255550150
Spawn FBI Buffalo - 2275550100
Spawn Comet - 2275550175
Spawn Turismo - 2275550147
Spawn Cognoscenti - 2275550142
Spawn Super GT - 2275550168
