Kellogg's got sued in 2013 for $4 million. They claimed that Mini-Wheats improved children’s attentiveness, memory and other functions. The ad campaign also claimed that the breakfast cereal could improve child’s focus by more than 20%, Customers were allowed to claim a maximum of $5 back per box, with a maximum of $15 per customer.
Volkswagen advertised some of their cars as environmentally friendly diesel cars, but in 2015 it was exposed that they had been cheating their emission tests. The Federal Trade Commission sued them, claiming they had sold or leased out more than 550,000 cars on those false claims. They may have to pay up to $61 billion for violating the clean air act.
Pennzoil was ordered to pull ads that showed their oil performing better than their competitors after a New Jersey judge called them "false and misleading" and "repugnant." Houston-based Pennzoil was claiming superiority over four different brands, including New Jersey-based Castrol. Pennzoil is no longer allowed to claim that their oil is better at protecting car engines than Castrol.
New Balance was sued after they made the claim that a certain shoe of theirs could help the wearer of that shoe burn calories. Studies showed later that those shoes offered no health benefits. In August 20, 2012 New Balance paid a settlement of $2.3 million dollars.
Consumers sued Wrigley [in 2009] in federal court arguing the subsidiary of privately held Mars Inc. made misleading advertising claims about the germ-killing properties of Eclipse. The settlement was about 6 to 7 million to a fund that will reimburse consumers up to $10 each for the product and cover other costs of the settlement
In 2014, Wal-Mart was sued for falsely advertising the price of Coca-Cola. They were fined $66,000 for overcharging customers in 117 New York stores.
The Sugar Association asked for an investigation into alternative sweetener Splenda's "Made from Sugar" slogan. It complained that the tagline was misleading, and that the sweetener is nothing more than "highly processed chemical compound made in a factory. In 2007, a resulting lawsuit led by the makers of rival sweetener Equal, settled against Splenda. Equal was looking for $200 million from Splenda in the settlement for unfair profits.
In 2009, an Olay ad for its Definity eye cream showed former model Twiggy looking wrinkle-free -- and a whole lot younger than her years (she turns 62 next week). Turns out the ads were retouched. This was classified as false advertising because the product did not actually provide customers with a wrinkle free face like it was expected to due to the commercial.
Kellogg's popular Rice Krispies cereal had a crisis in 2010 when the brand was accused of misleading consumers about the product's immunity-boosting properties, according to CNN. The Rice Krispies did not serve any direct health benefits thus why it was considered false advertising.
Energy drinks company Red Bull was sued in 2014 for its slogan "Red Bull gives you wings." The company settled the class action case by agreeing to pay out a maximum of $13 million — including $10 to every US consumer who had bought the drink since 2002. This was classified as false advertising because Red Bull did not give wings clearly and people expected a boost which was not provided.