[HSigma]

Purchased a '22 M5C in Feb w 12k mi. Noticed this issue at start of summer, finally brought it into dealer. I suspect they are struggling to remedy.

Random but reasonably frequent issue. If temps are very high and/or car is driven very hard in decently warm temps, upon locking car at door handle or key fob, alarm will go off 1-2min after locking. Cant reset w key after alarm has self-triggered, can only hit unlock on key fob to stop alarm. Have to go in car, turn on engine, then relock to stop alarm from another self-trigger.

New batteries in FOB did not correct.

Any advice or experience w this odd issue? Thank you.

[HSigma]

Will close this thread as issue has hopefully been solved by dealer after a few days of troubleshooting. It ended up being faulty SINE alarm module that was not properly calibrating itself on angled parking positions.