Where is the Check Engine light reset switch on a 98 Chevy Tracker 2x4 1.6 liter engine?

There's no Check Engine light reset switch on a 1998 Chevy Tracker (or any other car, for that matter). The Check Engine Light (CEL) is illuminated by the car's onboard diagnostic system (OBD). To clear the light, you need to address the underlying problem that caused the light to come on in the first place.

Simply disconnecting the battery for a short time might temporarily clear the light, but this won't fix the underlying issue, and the light will likely come back on. You'll need to:

1. Use an OBD-II scanner: This tool reads the diagnostic trouble codes (DTCs) stored in your car's computer. These codes tell you what problem the car has detected. You can buy a relatively inexpensive OBD-II scanner at most auto parts stores.

2. Address the problem: Once you know the DTC, you can diagnose and repair the problem yourself (if you have the skills and tools) or take it to a mechanic.

Resetting the light without fixing the issue is a bad idea as it masks a potential problem that could lead to more significant damage or even unsafe driving conditions.