Method 1: After inflating tires to the correct pressure:
This is the most common scenario. After inflating your tires to the proper pressure (found on a sticker usually located on the driver's side doorjamb or in your owner's manual), drive the vehicle at speeds above 20 mph for approximately 10-20 minutes. The light should automatically reset itself. If it doesn't reset after a longer drive, try method 2.
Method 2: Using the OnStar system (if equipped):
Some 2009 Chevy HHRs may have an OnStar system. If your vehicle has OnStar and a malfunctioning tire pressure sensor is NOT the problem, they may be able to reset the light remotely. Contact OnStar for assistance.
Method 3: Manual Reset (Less Likely):
The 2009 HHR *generally doesn't* have a manual reset button like some newer vehicles. There's no standard button or procedure to manually reset the TPMS warning light in the way some other cars do. If the light persists after driving, it likely indicates a problem beyond just low tire pressure.
If the light remains on after trying these methods:
* Check your tire pressure again: Ensure all tires, including the spare, are inflated to the correct pressure.
* Check for slow leaks: A slow leak might require a tire patch or replacement.
* Inspect TPMS sensors: There could be a malfunctioning sensor. This requires professional diagnosis and possibly sensor replacement or repair. A tire shop or mechanic equipped to deal with TPMS systems will need to address this.
In short: For the 2009 Chevy HHR, driving the car after inflating tires to the correct pressure is the primary reset method. If that doesn't work, a faulty sensor is the most likely culprit, requiring professional attention.
