Check the level of your brake fluid, if it is below specification refill it. Did the dealership diagnose your vehicle with a scan tool? What is the extracted trouble code?
Also check out this recall for your vehicle
2007 Toyota Fj Cruiser Tires Recall 06V235000
NHTSA: Action Number: N/A Service Bulletin Number: 06V235000
Jun 26, 2006Component:
TiresPotential Units Affected:
Toyota Motor North America, Inc.
Summary: On certain passenger vehicles equipped with either bridgestone dueler or dunlop grandtrek tires, there is a possibility that the inner bead of the tire may have been damaged. If the bead is damaged, a bulge may develop on the sidewall of the tire and air may leak from the area of the damaged bead.
Consequence: If the tire loses air pressure it may lead to a loss of vehicle control and increase the possibility of a crash.
Remedy: Dealers will inspect all five tires, including the spare tire, to determine if they are within the affected tire-to-wheel assembly range and replace all involved tires with new tires free of charge. The recall began on july 5, 2006. Owners may contact toyota at 1-800-331-4331. Note: due to an error in the dot serial number section of the technical instructions, a number of vehicles were not inspected correctly. Toyota relaunched this campaign in mid-august 2006.
Notes: Toyota recall no. 6ad. Customers may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to http://www./