It should be at the top of your brake pedal it will look like a little push button switch the releases when the pedal is depressed
Standard or automatic transmission, they both are mounted to the transmission.
inside the tranny
mounted on the trans
replae backup light switch on transmission
screwed into front of transmission.
switch is on side of transmission under the car
that is usually mounted on the transmission case
It is combined with the neutral safety switch and mounts to the transmission where the shifter linkage is attached.
It is quite simple to change the brake light switch on your 1998 Chevy S 10 pickup truck. The brake light switch simply plugs in and out.
The backup light switch and the brake switch are all in the same relay switch. The backup light switch can be found beneath the drivers side dashboard.
The backup light switch is generally located on the Transmission. If you would like to see one then follow the link to RockAuto.com and locate your Truck. Hope This Helps.
Usually located on the transmission.