One problem related to o2 sensor has been reported for the 2004 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Highlander based on all problems reported for the 2004 Highlander.
Identical to complaint #10114548 my event happened January 6, 2005 with less than 10,000 miles on vehicle. Now, at 35,750 miles, I have O2 sensor problems on a routine basis(3rd sensor on order from dealer right now). I am very concerned that these problems will continue past warranty, I have little faith in this vehicles safety and performance -every day I cross my fingers that nothing else goes "brakes" while driving with my 2 small children. This needs to be investigated.
| Electrical System problems | |
| Car Will Not Start problems | |
| Software problems | |
| O2 Sensor problems |