I just got a set of after market wheels for my 09 HHR that were installed on an 09 Malibu. ANyone know if the sensors are the same or will they work on the HHR or should I swap them out?

 

(bump) I don't see why not, just a radio frequency.. But others will know better..

 

Just did the same thing on mine. Got my wheels from a Malibu and actually just now reset them and they are reading just fine.

 

The ones I got off ebay were for Malibus, HHR, Caddys, etc...
The car reads exactly what the sensors send, for instance 35 psi output from the sensor reads 35 psi at the dash.
The sensors I have read 2 PSI higher than reality.
I checked TP with two different TP guages and they read 33 PSI, the dash reads 35.

I know this so I fill my tires 2 lbs higher than I want according to the dash.

You can call a GM dealer and he can look the sensor model number (that you have) up and tell you if it'll work on our cars.

 

Thats intresting cause mine reads about 5lbs lower than with a TP gauge. I filled all mine up to 35 with a TP gauge and the dash was reading 29-30. Not sure which one to go off of.

 

Try another gage, or maybe several and if the gages agree, believe them. In my experience, the TPMS seem to be a bit off. But I use a high quality gage.
Some of those cheap stick gages are not reliable.
Also, if you are using a stick type gage, once you seal it onto your valve stem, keep it there and press the top of the gage back down until it stops. They tend to over travel and go beyond the actual reading. By pressing them back down, you are getting a better reading.
I hope this makes sense??

 

that's a really great tip... one of those things that you hear and then think "duh... that's common sense... but I didn't think of it."

I was going to post that my HHR's monitor reads about 3 PSI lower than my stick gage, but now i'm not sure that's accurate information...

I do know the tire pressure monitor saved my left rear wheel one day when I fired up the car and it read 1psi. I would have driven at least a block or so before I stopped to see what was wrong if I didn't have the monitors. I had a nail in my tire...

 

I air up with a stick..you want a good stick buy one they use on big trucks...they are big and accurate and take a beating( or buy one from Speedway Motors that they use for racing)....after that I 'NOTE' what the DIC says and watch fluctuations, actual numbers mean nothing as the stick already told me that. I find with 18's and pilots I'll see swings of 5 psi in either direction depending on tempertures, its pretty radical but then they are small volume tires and any changes are big. use the DIC for monitoring only, not real life pressures...theres alot that can happen to a signal between sensor and pickup....

 

How did you reset them? Can you do it yourself or do you have to go to the dealer? Thanks