Unplug the battery for five minutes, if that don't work get your truck serviced something is wrong.
Disconnect battery and wait about 1 minute
The airbag light in the 2003 GMC ENVOY can be reset by disconnecting the battery for about 5 minutes. Then reconnect the battery, turn the key to on without starting the vehicle, and pump the gas pedal three times if the light is still on after reconnecting the battery.
To reset the check engine light on a 2003 GMC Envoy, you can use an OBD-II scanner to clear the trouble codes after addressing any underlying issues. Alternatively, you can disconnect the negative battery terminal for about 15 minutes to reset the vehicle's computer. After reconnecting, the light should turn off if no problems persist. However, it's important to ensure that any issues that triggered the light are resolved to prevent it from coming back on.
get the engine serviced.
turn the key to the on position press the gas pedal 3 times and it will reset itself.
How do I switch off engine light off my 2003 opel corsa bakkie 1.4
I believe if you turn on the ignition key (do not crank engine) and depress the gas pedal three times it will reset itself.
You will need to access a diagnostic computer to turn off the check engine light on the 2003 Honda Accord. You could also remove the fuse from the dash lights or instrument panel.
On a 2002 Envoy you turn the key to run but don't start it. Then push and release the gas pedal 3 times within 5 seconds. The change engine oil light should blink for 5 seconds meaning you have reset the system. If it doesn't blink for you do the procedure again. I'm pretty sure its the same on a 2003. Good luck.
The head lights have nothing to do with the check engine light.
Check the starter.
To reset the change engine oil light in a 2003 Mitsubishi Outlander, turn the ignition key to the "On" position without starting the engine. Press the gas pedal three times within five seconds. After that, turn the ignition off and then start the engine; the oil light should be reset and go off. If the light remains on, repeat the process.