… defective, safety, safety related, dangerous, bad, and critical. You know, words that the average person, in the context of the millions of cars that GM has recalled, might understand as indicative of underlying problems at the company. … You might wonder just how bad things looked to the engineers, given that this would be an odd collection of words to pull out of thin air without looking at in-house samples of writing. If only everyone had known how apt the list could … …

The rest is here:
The 69 Words GM Employees Can Never Say – AOL Jobs