Continuity mistake: During the chase scene with the veterinary truck and the terminatrix, the damage to the truck is constantly changing. In one shot the hood of the truck is bent upward, in the next shot it is straight and undamaged.
Continuity mistake: When the crane flips over the arm is missing when it is seen sliding across the road.
Continuity mistake: When the three leads leave the rest area in the mobile home to go find Cate's father, it's about 3.30pm (we hear reference to 6.18 pm and it's in 2 hours 53 minutes). After the conversation where T101 tells that he killed John, you see the car from the outside. You can see on the shadows that the sun is so low, it must be very close to sunset. Shortly afterwards, during the next conversation, it is bright daylight again and it stays so during the rest of the outdoors scenes. (01:08:20)Jacob La Cour
Continuity mistake: When the TX runs the crane through the glass corner of a small building while chasing the tundra truck, the flashing orange lights on the top of the cab are missing. These lights return on the next shot.
Continuity mistake: A headlight breaks loose on the ambulance after hitting Arnold's motorcycle. The next shot when the TX is looking in her rear view mirror, the ambulance has two flawless headlights.
Continuity mistake: The crane's arm is draped in cables, wires, and even a partial telephone pole right before Arnold is dragged through the buildings glass facade. The next shot before impact the crane's arm is clean. (00:34:00)
Continuity mistake: When the TX pulls up to Jim's Burgers, notice the umbrellas in front of the store and the "in-out" arrows on the road. Asking for Jose Barrera at the drive-through speaker, she drives in and shoots him from the passenger side of the car and exits on the same side of the building she came in. You can see the front of the store with umbrellas upon entry and exit, yet the speaker has disappeared. (00:16:30)
Continuity mistake: The hubcaps on the hearse come off but are back on in later scenes. (00:59:20 - 01:00:30)
Continuity mistake: When the Terminator is slamming his fists again the truck trying to fight his new programming, the damage to the truck changes between each camera angle. Watch the passenger front tire collapse under the truck in one scene and then it's just at an angle on the next. (01:28:10)MCKD
Continuity mistake: When John talks to Catherine while sitting at the table in a moving RV, watch the explosives he is working on. Position of the charges changes with every shot facing Catherine. At one point they completely disappear from the table leaving only the Glock 18 handgun, and just a second later the table shown full of explosives again. (01:09:55)
Continuity mistake: After Kate's dad gets shot at the base the blood and the wounds and the holes in his jacket disappear.