When changing the air filter, it is easy to knock off a hose on the air filter housing, which is part of the emission control system. If the vehicle is driven with this hose disconnected, the Check Engine Light will illuminate.
Car problem reports
Report A Problem
Problem with your car? See what our experts say or submit your own.
Most reported 2009 Toyota Highlander Hybrid problems
Ask a Question
Shops and Dealerships near you
Featured Shops and Dealerships
- (571) 252-8401 3 Cardinal Park Dr SE