MIAMI — Toyota has routinely engaged in questionable, evasive and deceptive legal tactics when sued, frequently claiming it does not have information it is required to turn over and sometimes even ignoring court orders to produce key documents, an Associated Press investigation shows.

In a review of lawsuits filed around the United States involving a wide range of complaints — not just the sudden acceleration problems that have led to millions of Toyotas being recalled — the automaker has hidden the existence of tests that would be harmful to its legal position and claimed key material was difficult to get at its headquarters in Japan.

It has withheld potentially damaging documents and refused to release data stored electronically in its vehicles.