overdriveswitch on 2003 Suzuki Grand Vitara

when driving in overdrive the car lunges switch to overdrive off car does not lunge. what is happening?

1 answer
You probably have problems in your torque converter clutch (TCC). Take it to a transmission shop or a Suzuki or import specialist for diagnosis.
If you want to find a Suzuki specialist, here's our directory link for you: