Incorrect attachment bolts may have been installed.
"This could result in the bolts loosening over time," Toyota said in a statement. "A loosened bolt could affect the performance of the knee airbag, increasing the risk of injury during a crash."
No injuries or accidents have been linked to the recall, Toyota spokeswoman Cindy Knight told Edmunds.
No information about the recall has been posted on the website of the National Highway Traffic Safety Administration, which oversees vehicle safety in the U.S.
Edmunds says: This recall does not begin for several weeks. If you own one of these trucks and have an immediate concern, it's best to contact your dealer now.