The Red Truck is the subject of a myth in Grand Theft Auto: San Andreas and Grand Theft Auto V. The Red Truck has been associated with the Epsilon Cult, and it has been the subject of many investigations within the Grand Theft Auto community.
GTA San Andreas
In GTA San Andreas, the Red Truck is mentioned on the Epsilon Cult's official website, under the section which explains how to join the cult.
|“||Travel through the dawn to the pass pictured in our brochures. Look for a red truck with a dent on the right fender. Raise your left hand and recite the words: "Take me to my father-father, brother-uncle. Kifflom." We'll do the rest. Because we all know, there is Kifflom and there is Krant, and both be praised. Blindfold required.||”|
–Epsilon Program, Epsilon Program Website
Since the game's release, it has been widely speculated that the Red Truck mentioned in this brief passage is the Beater Sadler, which spawns in various places around San Andreas. Like the Beater Glendale, this variant of the Sadler spawns with dented body panels, bumpers, and doors which cannot be repaired by visiting a Pay 'n' Spray. In truck's bed, there is green substance. This may be related to Green Goo.
In a pre-release screenshot of the game, a red Walton is shown driving across the Sherman Dam during sunset. Players speculated that this screenshot had some correlation between the Red Truck myth, as the Epsilon instructions mention "a pass," and it is very likely that the Dam is the pass, as it connects Bone County to Tierra Robada. In the screenshot, the time is set to noon, solidifying the theory further.
Another pre-release screenshot used on Rockstar's teaser site shows a red Sadler entering the town of Blueberry, near the Red County Truck Terminal. This could possibly be another reference to the truck's significance.
The directions say that the truck must have a dent in its right fender. However, in GTA San Andreas, vehicles do not get damaged in their quarter panels (fenders), making this part of the myth unlikely. Here's one of the dented trucks, a Sadler, that is placed around in San Andreas. Just like with all the other ones, nothing happens around it, and nothing special happens when you get inside it - it's just another car. Both the Sadler and the Glendale have two skins, one ordinary skin, and one beaten-up skin. If the player drives one of the beaten-up cars to a repair shop, it resets to its original skin, a beaten-up car, just like the player found it.
As there hasn't been found any red truck - or another kind of car - that seems to be any different from the other cars, there has been found a sign that might be a hint. In Red County, there is a large sign post saying "Red County Truck Terminal," with the word "Truck" and "Red" on top of each other on the left side. If there is any special place where the player could expect to find the special red truck mentioned on epsilonpogram.com, it might be here.
Another possible location of the truck can be an Abandoned Dock located at the most Northern part of the map. This place has been widely believed to be the location of the truck, due to its discrete location and the fact that a beaten-up truck always spawns there. The Abandoned Dock is located within a geographic pass, which adds more plausibility to this claim.
Grand Theft Auto V
The Red Truck myth returns in Grand Theft Auto V. Since the Epsilon Program uses the same website from GTA San Andreas, the instructions to join the cult remain the same.
The Red Truck appears in the mission Seeking The Truth, in which Michael must travel to Raton Canyon and find a red truck. Once he arrives, he sees the truck, which is a red Bison, then takes out the brochure and recites the phrase. After the phrase is said, two members of the cult emerge from behind some bushes and quickly knock Michael out.
The red truck is never seen nor referenced after this mission, and this is the only instance in the whole game where the cult uses a red vehicle. All the other vehicles that the Epsilon Cult uses are a unique shade of light blue.