About 2 weeks ago I got the Check tire service monitor light....I cycled thru the dic a few times ...it did the lf -- then went to lr -- then went to rr -- then I made it home and checked them all and they were ok but went ahead and did a relearn.

Then for about a week it was ok, then it did it again rf --, it went off did ok for about a week after restart, now today it said check tire pressure so i scrolled thru the dic and it read lf 13psi. so i pulled off the side of the road when safely possible and checked it. it was perfectly fine, as was all the tires.....now the light is off again....

my question is, are the service lights coming on stored so the dealer doesn't just waste my time and do the relearn and say there you go or will they be able to tell there is a prob and diagnose it right away.....and install new monitor and tpms'?

 

If there is a fault a DTC will be stored. If it is a programming error or low tire there won't be a DTC.

Read this post (#69) and follow the instructions to find out if it is an issue that stored a code.

https://www.chevyhhr.net/forums/show...3231&page=7#69