Hi I recently just bought an 02 Accord EX v6. 90k miles and every one or two times I drive it the lights and heat have lost some power but not all for just a second or two. Sometimes repeatedly every minute or 2 repeated for several times and other times only once. In both warmer and colder weather. Not sure if this is a problem i should get checked out, it has a new battery the car is very well maintained just not sure why it would do this. Thanks

 

So things keep running, but the lights dim and the blower slows down for a second or 2?

Is it throughout the car? Then maybe a battery connection is loose, dirty, corroded, etc. Check the clamps on the battery posts, but especially check the OTHER end of each battery wire. I don't know the details of the connections at the fusebox, but there's 1 or 2 large fuses that are installed with screws not push-in.

If it's limited to a few systems, that might help pinpoint places in the wiring harness like specific grounding points for you to check & clean. Pretty mush the same fix as above, but knowing which things lose power will help you search for the culprit.