When your vehicle's onboard diagnostics detect an issue with a critical component, such as the engine or transmission, it triggers a code that lights up a warning on the dashboard. Even after fixing the issue, you might need to reset the car's computer to clear these lights. Thankfully, this procedure is straightforward.
How To Reset Warning Lights?
When a warning light illuminates your dashboard, it's crucial to promptly address and reset the light. The light might signal a minor maintenance need or a more urgent issue requiring immediate attention.
The method for resetting a dashboard warning light often varies by vehicle make and model. Typically, you can reset a warning light by disconnecting and reconnecting the battery terminals or employing a code scanner to erase fault codes.
If you're uncertain about the procedure for resetting your dashboard warning lights, adhere to the following steps systematically:
- Lift your car's hood using the support rod if it doesn't have a hydraulic system.
- Using pliers, loosen the nut securing the battery's negative terminal, identified by a minus sign (-) or its black color, while the positive terminal is red. It's safe to touch either terminal independently, but simultaneously touching both can cause a shock.
- By disconnecting the negative battery cable, you cut off power to the car's computer.
- Let the battery remain disconnected for about 10 minutes to ensure the computer resets completely.
- Reattach the negative cable to the battery, securing it with the nut.
- Finally, close your car's hood and start the engine to verify the reset, ensuring the warning lights are off.
Is It Safe to Reset Dashboard Lights?
Turning your car off and then on again will usually reset most dashboard lights. However, some lights require a manual reset. Before proceeding, consult your car's owner's manual for specific reset instructions.
For lights that need manual resetting, the process is typically straightforward. Ensure your car's engine is off and disconnect the battery. Next, press and hold the specific button or switch for the dashboard light for several seconds. This action should reset the light, causing it to turn off.
While resetting dashboard lights is generally safe, referring to your owner's manual first is prudent. If you need more clarification about any steps, seeking advice from a professional mechanic is recommended.
Resetting dashboard lights can be easily done at home with minimal tools. Following the guidance, you can quickly reset your dashboard lights, ensuring they work correctly and giving you added peace of mind.