What is the reason for the BMW X3 headlights and turn signals staying on continuously?
2 Answers
If it is an older model X3, the issue is likely due to a failure of the lighting module located below the steering column. For newer models, it is necessary to inspect the lighting module within the faulty headlight, as the cause may vary. Below is an introduction to the BMW X3: 1. Exterior Highlights: The exterior of the new car remains consistent with the 2019 model, still offering two design packages: the Luxury Design Package and the M Sport Package. The side and rear profiles also match the current model. In terms of dimensions, the new car measures 4717mm in length, 1891mm in width, and 1689mm in height, with a wheelbase of 2864mm. 2. Configuration Highlights: The most significant change in the 2020 model is the replacement of the xDrive25i series with a 12.3-inch full LCD instrument panel, now standard across the entire lineup. Additionally, the new car features added front seat heating, the removal of the in-car CD player, and the 9-speaker audio system is no longer optional. The xDrive28i series now includes a hands-free tailgate, front seat heating, Harman/Kardon audio system, and a 16-speaker setup.
I recently encountered this issue with my BMW X3 and spent quite some time figuring it out. Back then, when driving home, the lights and turn signals kept turning on for no reason, making pedestrians think I was signaling a turn. I suspect it's most likely a problem with the switch assembly—maybe the turn stalk got stuck in the middle position and didn't reset. Another possibility is a short circuit or software glitch in the Body Control Module (BCM). BMW's electronic systems are so advanced that they sometimes act up. If it were me, I'd first try disconnecting the negative battery terminal for a few minutes to reset the system, then check the relevant fuses in the fuse box to see if any are blown. Having the lights stay on isn't just annoying—it also drains the battery fast, potentially depleting it in just two hours, so it's best to fix it ASAP. Last week, my friend spent nearly two grand replacing a module, so don't delay—it's better to drive to an authorized shop and have them scan for error codes.
