msg6

I just turned 5000 miles on my 400h and the alarm started going of at random times and the frequency is increasing and it is the middle of the night. Roadside assistance is going to tow the car in the morning because they think it is an electrical problem. Has anyone experienced this problem?

lexuslover

is it on the street or in a garage? and what type of area do you live in? sometimes the rumbling of trucks or large cars can set it off...

msg6

I took it to the dealer. The alarm sensors I had added to the headlamps were too sensitive. They adjusted the sensors and all is good.

Eternity3G

It could be a sensor on the car. My BMW did the same thing and it DROVE ME CRAZY!!!!! It got to the point of happening every night and so I started taking one sensor off at a time. started with the trunk, then tilt sensor, and moved around the car. It ended up being my hood sensor was tripping out... replaced the sensor and voila! (funny thing is it went to dealer and since they couldn't "duplicate" the problem, no fix from dealer....)