Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
You hold down the black reset button located on the instrument cluster for 4 seconds, then scroll down to the tire reset. Let go of the reset then hit it for each tire.
Didn't work....It just says relearning tire positions, then tire position active, horn honks. And when I try to push the button again 4 times it just scrolls through the other categories.
Ok, yours is the oddball one then. This is right from Mitchell. But the TPMS tool is a few hundred dollars. So I would just take it to the dealer.
If you encounter an 08′ Silverado with out a DIC and see no option for tire pressure relearn by pushing the odometer trip button and turning the lights on and off, has you scratching your head, then try this procedure.
KOEO run position, parking brake set, press and hold the lock and unlock button at the same time on key fob. After a few seconds horn will blow indicating relearn is initiated. The tire relearn activate message will display on the dash too. Now use your TPMS tool starting at LF/RF/RR/LR and when you are finished it will verify with a double horn blow.
I am a bit confused, as I do see the tire pressure relearn come up...And all I can do is hold it. The horn honks, and what you would expect is a fix, but does nothing. Does this still sound like the "oddball" you refered to?
Each TPMS sensor has a unique identification code. Any time you rotate your vehicle's tires or replace one or more of the TPMS sensors, the identification codes will need to be matched to the new tire/wheel position. The sensors are matched to the tire/wheel positions in the following order: Driver side front tire, passenger side front tire, passenger side rear tire, and driver side rear tire using a TPMS diagnostic tool. See your dealer/retailer for service.
The TPMS sensors can also be matched to each tire/wheel position, by increasing or decreasing the tire's air pressure. If increasing the tire's air pressure, do not exceed the maximum inflation pressure indicated on the tire's sidewall.
To decrease air-pressure out of a tire you can use the pointed end of the valve cap, a pencil-style air pressure guage, or a key.
You have two minutes to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer than two minutes, to match the first tire and wheel, or more than five minutes to match all four tire and wheel positions or matching process stops, you need to start over.
The TPMS sensor matching process is outlined below:
If your vehicle does not have RKE, press the Driver Information Center (DIC) vehicle information button until the 'Press To Relearn Tire Positions' message displays. The horn sounds twice to signal the receiver is in relearn mode and 'Tire Learning Active' message displays on the DIC screen.
If your vehicle does not have RKE or DIC buttons, press the trip odometer reset stem located on the instrument panel cluster until the 'Press To Relearn Tire Positions' message displays. The horn sounds twice to signal the receiver is in relearn mode and 'Tire Learning Active' message displays on the DIC screen.
Okay, I think I may have left something important out and I apologise. I changed the tires and wheels from stock white steel wheels to the alumin aluminum wheels and tires from my 2004 Denali. What I read was the tire pressure monitoring system on this vehicle does not have sensors in the wheels or valve stems, but some sort of sensor that monitors the wheel circumference, is this correct? Before asking for your assistance i did lower the tire pressure down from 42 to 36 on all for tires, as I was told at the dealer(sales manager). Is the pressure probably too low as the problem didn't occur until I lowered the pressure down after driving without any sign of problems for a week or so.
I was just reading up on your tyre. There is sensors in the wheels mounted on the rim itself. You said you put different rims on?
Yes, they are Aluminum factory rims from my 2004 Denali, and definitely without sensors as I know for a fact it does not have tire pressure monitoring.
That is why you have a warning light on then. There are no sensors to send a signal.
Okay, and again I am sorry for wasting your time as I was misinformed about the type of system it had. Do you know off hand where the sensors are so that I maybe able to switch them over to the denali wheels?
Yes, you'll have to actually pull all the tires off the rims to get them off. There are 2 types of sensors they use, but they do the same thing. Just connected differently.(Snap style and Clip style) I will send you the info on both since you don't know yet which type they are. I also included the relearn you will need. And you didn't waste time, it's why we are here. Thank you.
Tire Pressure Indicator Sensor Replacement (Snap In Style)Removal Procedure
Notice: Refer to Fastener Notice .Important:
Tire Pressure Indicator Sensor Replacement (Clamp In Style)Removal Procedure
Important: If any tire sealant is noted upon tire dismounting, remove all residual liquid sealant from the inside of the tire and wheel surfaces.
Tire Pressure Sensor LearnSpecial ToolsJ-46079 Tire Pressure Monitor Diagnostic ToolLearn Mode DescriptionThe Tire Pressure Monitor (TPM) System uses the instrument panel cluster (IPC), body control module (BCM), remote control door lock receiver (RCDLR), keyless entry transmitter, 4 radio frequency transmitting pressure sensors, and the serial data circuit to perform the TPM learn mode functions. The sensor learn procedure must be performed after every tire rotation, RCDLR replacement, or sensor replacement. Once the learn mode has been enabled, each of the sensors unique identification codes can be learned into the RCDLR memory. When a sensor ID has been learned, the RCDLR sends a serial data message to the BCM to sound a horn chirp. This verifies the sensor has transmitted its ID and the RCDLR has received and learned it. The RCDLR must learn the sensor IDs in the proper sequence to determine correct sensor location. The first learned ID is assigned to the left front location, the second to right front, the third to right rear and the fourth to left rear. The turn signals will individually illuminate indicating which location is to be learned in the proper sequence.Sensor Functions Using J-46079 Each sensor has an internal low frequency coil. When the J-46079 is used in activate mode, it produces a low frequency transmission that activates the sensor. The sensor responds to an low frequency activation by transmitting in learn mode. When the RCDLR receives a learn mode transmission while in TPM learn mode, it will assign that sensor ID to the location on the vehicle relative to the order in which it was learned.Sensor Functions Using Pressure Increase/Decrease MethodEach sensor takes a pressure measurement sample once every 30 seconds while in stationary mode. If the tire pressure increases, or decreases by more than 8.3 kPa (1.2 psi) from the last pressure measurement, another measurement will occur immediately to verify the change in pressure. If a pressure change has indeed occurred, the sensor transmits in Learn mode. When the RCDLR receives a Learn mode transmission while in TPM learn mode, it will assign that sensor ID to the location on the vehicle relative to the order in which it was learned.Learn Mode Cancellation The learn mode will cancel if the ignition is cycled to OFF or if more than 2 minutes has elapsed for any sensor that has not been learned. If the learn mode is cancelled before the first sensor is learned, the original sensor IDs will be maintained. If the learn mode is canceled after the first sensor is learned, the following will occur:
These conditions will now require the learn procedure to be repeated for the system to function properly.TPM Learn ProcedureImportant: Before proceeding, ensure that no other learn procedure is being performed simultaneously or that tire pressures are not being adjusted on another TPM equipped vehicle within close proximity. Stray signals from other TPM equipped vehicles just driving by can be inadvertently learned. If any random horn chirps are heard from the vehicle while performing the learn procedure, most likely a stray sensor has been learned and the procedure will need to be cancelled and repeated. Under these circumstances, performing the TPM Learn Procedure away from other vehicles would be highly recommended. In the event a particular sensor pressure increase/decrease activation does not cause the horn to chirp, it may be necessary to rotate the wheel valve stem to a different position due to the sensor signal is being blocked by another component.
Caution: Over inflating tires may cause personal injury or damage to the tires and wheels. When increasing tire pressure do not exceed the maximum inflation pressure as noted on the tire sidewall.
Okay, since I expect that there is a good chance that I may not be able to reuse the sensors with the aluminum wheels from the steel wheels, which means not just a trip to a tire shop, but purchasing new sensors for the aluminum wheels I am left with one last question. How can I disable the monitoring system, or trick it into thinking everything is fine?
Can you please tell me a way to disable the monitoring system?????
I thought maybe you could just pull a fuse or relay. But that isn't the case. I looked over the whole wiring system for the tire pressure sensors and unfortunately they are tied in with a lot of other components. Such as the body control module, instrument cluster, driver info centre, remote door locks. Fuse wire for the indicator bulb, that is tied in with other bulbs, so you don't want to pull that. There may be some trick to it, but I can't see how. Not without disabling other components.