I found some 17" Malibu wheels and tires with pressure sensors for my HHR. My question is will the Malibu sensors work for me or do I have to change them out and install my sensors.

 

They should work, you will just need to calibrate to your HHR. I am running 16" aluminum Malibu wheels with studded snows. I ran them the 1st year without the sensors. The flashing warning light drove me nuts. Bought a set of sensors. Twice a year when I change out tires, I just go through the procedure in manual and "match" each wheel to the correct corner of the HHR. That 1st year it would drive me nuts. Without sensors, if I parked next to a car at work that had sensors, it picked it up.

 

Thanks for your answer