Alarm Issues

[ted55]

last year my alarm on LS400 went all wrong. I come to get in no response from key fob so I had to get in manually, this set the alarm off put key in ignition, tuned engine on alarm stopped got home, tried key fob again car locked tried to unlock didn't work. had to open car with key manually alarm went nuts again. has anybody had this problem on a LS400, or can anyone help me on this subject.would be greatfull for any info regards ted55

[555Ltd]

Hi ted how old is your ls and has your fob got a black and a red buttom?

[ted55]

hello Dave, my LS is 1998 the fob has black buttons, and one white button for boot lid.

[555Ltd]

I know its a daft question but have you tried a new Battery in the fob? I have had false alarm issues with that alarm if microwave sensor is set too sensitive but its usually a reliable alarm

[ted55]

hi Dave,yes iv tried new batterys, that dosent work