A stolen 1961 Ford Pickup Truck is misidentified by the CHP dispatcher as a 1977 Ford Pickup Truck. In a later scene, that same 1961 Ford becomes a 1964 Ford.
During the start of the show the characters played by Larry Storch and Sonny Bono are seen taking items from a closed appliance store. Later, during briefing the sergeant states that the store was robbed. Robbery requires the use of force or fear in the taking of an item, so the store was actually burglarized, not robbed, which any police officer would know the difference.
When the red pickup crashes and rolls over, a roll bar is visible when it stops in the upright position.
When Ponch jumps in after the brown van, an air hose is visible leading to the top of the van which is now underwater.