TPMS Calibration?
Thread Starter
Instructor
Joined: Apr 2011
Posts: 212
Likes: 1
From: Dallas TX
TPMS Calibration?
I got four new wheels for my '09Z and bought four TPMS sensors from the Chevy dealer. The car shows that the sensors are there, but they all read about 4 psi low. The sensors in the previous set of wheels were right on.
Do these things need to be calibrated? Does the dealer have to do this, or can I buy a tool to do so?
Thanx, guys!
Do these things need to be calibrated? Does the dealer have to do this, or can I buy a tool to do so?
Thanx, guys!
Team Owner
Joined: Sep 2000
Posts: 25,019
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From: Far NW 'burbs of Chicago
St. Jude Donor '13
If you didn't retrain, the car is either remembering the old pressures from when your original wheels were installed, or it's picking up the signals from the old wheels/sensors if they are sitting in your garage.
Race Director
Joined: Mar 2005
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From: Austin Texas
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Race Director
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From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I also think Gearhead Jim has a valid point about the car picking up the info from the old tire/wheels. Try moving the old wheels at least 50 feet away from the car. You may need to drive 20-25 miles at one stretch away from the house to get the old sensor info to delete itself. The sensors go into a semi sleep mode if you stop for more than 15 minutes, so you have to keep moving for quite a while.
Thread Starter
Instructor
Joined: Apr 2011
Posts: 212
Likes: 1
From: Dallas TX
Well, now the car isn't receiving the sensors. This probably is good news. The readings that I thought were erroneous may have been holdovers from the previous sensors, and now that the TPMS has "woken up" and looked around, it can't recognize any sensors.
BTW, old wheels/sensors are miles away.
BTW, old wheels/sensors are miles away.
Burning Brakes
Joined: Dec 2006
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From: Pooler GA
If you were close to where I live, I'd Volunteer to reprogram them for free with my programmer.
Race Director
Joined: Sep 2007
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From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Well, now the car isn't receiving the sensors. This probably is good news. The readings that I thought were erroneous may have been holdovers from the previous sensors, and now that the TPMS has "woken up" and looked around, it can't recognize any sensors.
BTW, old wheels/sensors are miles away.
BTW, old wheels/sensors are miles away.
Team Owner
Joined: Sep 2000
Posts: 25,019
Likes: 2,712
From: Far NW 'burbs of Chicago
St. Jude Donor '13
I'm thinking that if the car is trained for the new sensors, it doesn't matter where the old ones are stored. Kinda like if another Corvette parks beside you, the cars ignore each others sensors.
We have two sets of wheels/sensors/tires (winter and summer). The set that is not in use is stored about 10 feet away from the car in my garage, no issues.
We have two sets of wheels/sensors/tires (winter and summer). The set that is not in use is stored about 10 feet away from the car in my garage, no issues.
Race Director
Joined: Sep 2007
Posts: 16,557
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From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I'm thinking that if the car is trained for the new sensors, it doesn't matter where the old ones are stored. Kinda like if another Corvette parks beside you, the cars ignore each others sensors.
We have two sets of wheels/sensors/tires (winter and summer). The set that is not in use is stored about 10 feet away from the car in my garage, no issues.
We have two sets of wheels/sensors/tires (winter and summer). The set that is not in use is stored about 10 feet away from the car in my garage, no issues.
I was thinking of a different issue where sensors are cloned. The OP now has a set of sensors with totally different IDs. My bad.
Le Mans Master
Joined: Feb 2007
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From: Currently somewhere in IL,IN,KY,TN,MO,AR,MS,AL, or FL
There is no calibration. The come calibrated from the factory. Telling the car to look for a different TPMS sensor set is a different matter. You just have a Chevy dealer who doesn't have a clue how tire sensors work and that the car needs to be told the new IDs when you change them. That's why you go to a tire place who does things like this all the time rather than a dealer who may change a TPMS sensor once a year.
