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Help! SVC TIRE MONITOR

81K views 12 replies 5 participants last post by  Jellybean1992 
#1 ·
That popped up on my 2008 cobalt
For my left front tire
I got two new tires put on the front for inspection, and thought that would resolve the issue. It's been a week, and this stupid light is back on.

It's not low pressure warning...it's different and I can't get it to go away.

Help?
 
#2 ·
Sensor is probably a dud. Did they reprogram the sensor after tire install?
 
#4 ·
Hi Jellybean1992! Let us know if you're able to take your Cobalt into the dealership to have the sensors checked. We can understand how constantly having this light on can be bothersome. If there's anything we can do to help, just send us a private message.

Amber N.
Chevrolet Customer Care
 
#5 ·
When they changed your tires, did they perhaps replace the TPMS on the rim itself? They shouldve asked you at least. When they install new ones, they will need to run a TECH II scan tool or equivalent for GM, then run their little tool that detects each sensor with a horn sound to alert tech that it found the sensor. You have to do this in this order: LF, RF, RR, LR, 2 horn honks to start and 1 per each wheel. Thats how you can know for a customer that the shop is doing it right.
 
#6 ·
Somewhere there is a how to on how to reprogram you sensors... check youtube and google and things.
 
#7 ·
You will need a TPMS tool and go through the BCM to access TPMS. That is the "safest" way to do it, I would not go with what youtube says.
 
#8 ·
But not the only way.
 
#9 ·
True, but smartest way :) Love them honks in the key of F, lol. There should be a total of 6 honks to indicate youve performed it correctly. 2 to initialize, 1 per wheel.
 
#10 ·
Important: 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 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.

Place the ignition switch in the proper position as follows:
• With standard ignition switch, place the switch in the RUN position.

• With electronic keyless ignition, place the switch in the ACCY position.

Initiate the TPM Learn Mode using one of the following procedures:
• Using a scan tool, initiate the TPM Learn Mode. A double horn chirp will sound indicating the Learn Mode has been enabled. The left front turn signal will also be illuminated.

• On vehicles equipped with keyless entry, simultaneously press the keyless entry transmitters lock and unlock buttons until a double horn chirp sounds indicating the Learn Mode has been enabled. The left front turn signal will also be illuminated.

• On vehicles not equipped with keyless entry, press and release the driver information center (DIC) INFO button until the RELEARN TIRE POSITIONS message appears on the DIC display. Press and hold the SET/RESET button until a double horn chirp sounds and the DIC displays a TIRE LEARNING ACTIVE message indicating the Learn Mode has been enabled. The left front turn signal will also be illuminated.

• For HUMMER H3, GMC Canyon, Chevrolet Colorado ONLY: Turn the exterior lamp switch from OFF to Parking Lamps four times within four seconds. A double horn chirp will sound and the low tire pressure indicator will begin to flash, indicating the learn mode has been enabled.

Starting with the left front tire, learn the tire pressure using one of the following methods:
• Hold the antenna of the J 46079 aimed upward against the tire sidewall close to the wheel rim at the valve stem location. Press and release the activate button and wait for a horn chirp. Once the horn chirp has sounded, the turn signal in the next location to be learned will illuminate.

• Increase/decrease the tire pressure for 8-10 seconds then wait for a horn chirp. The horn chirp may occur before or up to 30 seconds after the 8-10 second pressure increase/decrease time period has been reached. Once the horn chirp has sounded, the turn signal in the next location to be learned will illuminate.

After the horn chirp has sounded and the right front turn signal is illuminated, repeat step 3 for the remaining 3 sensors in the following order:
4.1. Right Front

4.2. Right Rear

4.3. Left Rear

After the LR sensor has been learned, a double horn chirp will sound indicating all sensors have been learned
Turn OFF the ignition to exit the learn mode.
After the learn mode has been exited, adjust all tires to the recommended pressures on the Tire Inflation Pressure Placard. Refer Tire Inflation Pressure and Placards.
 
#12 · (Edited by Moderator)
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