alarm system reset

2012 BMW X5
130,000 MILES • 3.0L • 6 CYL • 4WD • AUTOMATIC
Avatar
ERNESTO EUGENIOI
  • MEMBER
  • 1 POST
I replaced the battery on my car and had no power on it for a day. After I installed the new battery and registered it, I noticed that my alarm is no longer working. The panic alarm works but my regular alarm does not work. I already followed the procedure posted on this forum but I think it may have something to do with the rolling code in the system. Any advise?
Feb 8, 2018 at 11:29 AM
Advertisement
Avatar
JIS001
  • ✓ASE Certified Mechanic
  • 3,412 POSTS
  • ASE Certified Mechanic
BMW is very complicated even when replacing battery. You pretty much need a good scan tool or there scanner to initialize everything down to the seat memory.

I would advise you take it in to a shop that has that equipment to do those calibrations and check for codes.
Feb 8, 2018 at 10:53 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.