Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Setting Compass Zone
The compass has a default zone of 8. Refer to Figure to determine the correct zone number. The correct compass Zone selection is critical to proper compass operation. With the ignition in the ON position, pressing the Zone/Cal button (left reading lamp button) for 5-10 seconds and then releasing while ZONE is illuminated enters the compass into the Zone display mode. In the Zone display mode, ZONE will be illuminated instead of the temperature. The current Zone number, 1 through 15 will be displayed. While ZONE is illuminated; momentarily pressing the Zone/Cal button advances the zone to the next higher zone. When the desired zone number is displayed, do not press the Zone/Cal button again. After 5 seconds, the Zone Variance number will be stored in the module memory.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.