To activate a cheat code you have to press the "~" button above the "TAB" key or call a certain phone number. Because it is easier to enter the codes via "~" I will only write down the codes and not the phone numbers. Both have exactly the same effects and cheats.

Cheating in GTAV disables achievements, thus making the Career Criminal achievement impossible to unlock!.

DON'T save after cheating!

• TURTLE - Max Health & Armor
  
• SKYDIVE - Parachute
  
• TOOLUP - All Weapons with Ammo

• CATCHME - Fast Run
  
• HOPTOIT - Super Jump
  
• INCENDIARY - Flaming Bullets
  
• HIGHEX - Explosive Bullets
  
• HOTHANDS - Explosive Melee Attack
  
• GOTGILLS - Fast Swim
  
• SKYFALL - Spawns player mid-air
  
• JRTALENT - Enable Director Mode*
  
• DEADEYE - Slow Motion Aiming **
  
• PAINKILLER - Invincibility ***
  
• POWERUP - Recharge Ability

* Enables the ability to change playermodel.
** Enter 4 times to increase effect.
*** Only active for 5 minutes before you need to re-enter it

• FLOATER - Moon Gravity
  
• LIQUOR - Drunk
  
• SLOWMO - Slow Motion*
  
• SNOWDAY - Slippery Cars

* Enter 3 times to increase effect.

• LAWYERUP - Lowers Wanted Level by one star
  
• FUGITIVE - Raise Wanted Level by one star

• BANDIT - BMX
  
• COMET - Comet
  
• ROCKET - PCJ-600
  
• OFFROAD - Sanchez
  
• RAPIDGT - Rapid GT
  
• VINEWOOD - Limo
  
• TRASHED - Trashmaster
  
• HOLEIN1 - Caddy
  
• FLYSPRAY - Duster
  
• DEATHCAR - Duke O' Death *
  
• BUBBLES - Kraken Sub **
  
• EXTINCT - Dodo ***
  
• BARNSTORM - Stunt Plane
  
• BUZZOFF - Buzzard

* Available after "Duel" random event.
** Available after completing "Wildlife Photography Challenge".
*** Available after coompleting the "Sea Plane" random event.

• MAKEITRAIN - Change weather*

*Rotates through Sunny, Clear, Cloudy, Smoggy, Overcast, Rainy, Thundery, Clearing and Snowing