Here are two ways to check by yourself if the DRL is not working
Simple examination:
Step 1: switch on the ignition key, the position light should turn on, if it is not lighting, then apply for after-sales service, maybe wire or bulb is broken.
Professional examination:
Step 2: switch on the ignition key, the position light should turn on, if it is not lighting, then use multimeter to test taillight wire, see if there is current. If there is no current, then reconnect the wire, if there is current, then change the bulb.
