The Yautja is known for its strength, hunting abilities, and technologically advanced equipment, but like any species, they have their weaknesses. Understanding these weaknesses can give an advantage to their opponents in a fight or a hunt. This will allow the legendary hunters to be defeated and even killed.
Not Being Bulletproof
Despite their advanced technology and formidable appearance, the Yautja are not bulletproof. They have been shown to be able to absorb a significant amount of damage, however, they still bleed when hit. Some Predators seem to take pride in this, and even stand in the way of bullets to shrug them off and show their might. Their body armor is not completely bulletproof either and can be penetrated by high-powered weapons, like sniper rifles. Many Predators are seen to lose limbs and continue fighting, although not indefinitely. Furthermore, their skin and armor are not resistant to Alien acid, although their blood is said to partly neutralize its effects.
Over-reliance On Technology
One of the main weaknesses of the Yautja is their reliance on technology. The Yautja's equipment is highly advanced and allows them to hunt and survive in a variety of environments, but if their equipment is damaged or destroyed, they are at a significant disadvantage. This is evident in the movies where when the Predator's cloaking device, plasmacaster, and other equipment are damaged the predator is at a disadvantage. This weakness can be exploited by using EMPs to disable their equipment or using their own weapons against them. The cloak is further vulnerable to water and will short-circuit if wet. The Predator is also highly reliant on their bio-mask and will be at a disadvantage if lost, even suffering breathing problems if hurt.
The Predators too often lose their gear during hunting expeditions. When this happens, their equipment can fall into the hands of other beings, who can then use it against the Yautja. This has led to several instances of the Yautja's weapons being used against them in battle, making their hunting trips more dangerous. For example, Harrigan from Predator 2 picked up the City Hunter's smart disc to chop off his arm, and later strike his opponent in the abdomen. The lost equipment is also highly sought after by government officials and scientists, to reverse-engineer the technology and use it against the Yautja. This highlights the importance of maintaining control over their equipment, as well as the potential consequences of losing it.
The Yautja also have a certain level of arrogance and overconfidence that can be their undoing. They view themselves as the ultimate hunters and often underestimate their opponents, as seen in the movies where the protagonists outsmart and defeat the predator. This is evident in the first Predator movie where the Jungle Hunter had disarmed and seemingly defeated Dutch, but started toying with his prey to draw out the end of the hunt. This enabled Dutch to lure the Predator into his log trap, defeating him. Often the Young Blood Predators are overconfident and get easily killed on their first hunts, which happened with Chopper, Celtic, and Scar Predators.
The Yautja also have a certain code of honor that they follow. They only hunt worthy opponents and have a rule of not killing unarmed or defenseless creatures. This code of honor can also be used against them, as seen in the movies where the protagonist uses this to their advantage. If an opponent would drop their weapon and not pose a threat, a Predator would think twice about attacking. Predators also have the reluctance to harm children, women, and the elderly. However, crazed Bad Blood Predators have been shown to not care about the hunting rules and attack anyone on sight.
Predators prefer hunting in warm climates, such as tropical forests and jungles, as their bodies are adapted to function best in these environments. However, this preference also makes them avoid certain environments, such as cold or snowy regions, although they are sometimes seen hunting there as well. In these conditions, their advanced technology may not function properly, and their physical abilities may be hindered, making it difficult for them to hunt effectively. In addition, predators may also not be accustomed to the specific prey or hunting techniques required for that kind of environment, making them less effective hunters. One could also predict that on a particularly warm summer, the Predators are more likely to show up, than on cold one.
Another Yautja weakness is a vision impairment that makes it difficult for them to see in certain lighting conditions and environments. To compensate for this, they rely heavily on their bio-masks, which have various vision modes that allow them to see in infrared, ultraviolet, and low-light. They also get targeting and tactical information on their display, even being able to translate foreign languages. However, this over-reliance on the bio-mask vision modes can make them vulnerable during hunting expeditions. Some Yautja vision modes have an advantage over others, but there is no ultimate vision that covers all situations. If their bio-masks are damaged or lost, they may be unable to see properly, making them easy prey for their hunted.
Being Bad Losers
When faced with defeat, they will often resort to extreme measures, such as setting off their Self-Destruct device, which can lead to significant civilian casualties and destruction. This behavior is seen as an over-reaction and a sign of poor sportsmanship, and it can also be seen as a sign of their giving up too easily. The use of their self-destructing technology can also be viewed as a coward's way out, instead of facing the consequences of their actions. This tendency to cause destruction, even when defeat is inevitable, can be seen as as weakness and might be exploited as well. One could assume that a wounded Yautja will kill itself and there might be no point in fighting or chasing it until the end.
In conclusion, the Yautja are not without weaknesses and can be fought and killed. So far, no Yautja has survived their hunt in the movies, showing their inherently weak track record. Their overconfidence, over-relying on their technology and preference for certain climates makes them predictable. They often lose their gear which is then turned against them. The Predators take great pride in being honorable but are often sour losers in the end, blowing themselves up.