How do you replace turn signal bulb on GMC Savana?

To replace the turn signal bulb on a GMC Savana, first ensure the vehicle is turned off and the keys are removed from the ignition. Open the hood and locate the turn signal assembly, typically found near the front of the vehicle. Remove the assembly by twisting or unclipping it, then pull out the old bulb and replace it with a new one, ensuring it's securely fitted. Reassemble the turn signal assembly and test the new bulb to confirm it's working properly.