I guess when you're incompetent and start to lose credibility people don't want to be associated with you.

Money/CNN

General Motors Corp. has pulled its advertising from the Los Angeles Times over what it called factual errors and misrepresentations in the newspaper, a spokesman for the automaker said.

...

"General Motors decided this week to cease advertising in the Los Angeles Times based on strongly voiced objections from our dealers in California about factual errors and misrepresentations in the Times' editorial coverage," said GM spokesman Brian Akre on Thursday.

Tipped by: Captain's Quarters who has a lot more specifics on what exactly triggered this ad pull.

Other Commentary:

Riehl World View has some excellent points on the real reason for GM's decision
Tapscott's Copy Desk who has a contrarian view and agrees with the Times
The Dread Pundit Bluto
Dustbury
Ed Driscoll.com
OKIE on the LAM