Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 453 (TIRE PRESSURE MONITORING SYSTEM)REPAIR INSTRUCTIONSTIRE PRESSURE SENSOR LEARNTPM LEARN PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
TPM Learn Procedure
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION TPM Learn Procedure
WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
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 electronic keyless ignition 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.
- Using the keyless entry transmitter, simultaneously press the keyless entry transmitters lock and unlock buttons until a double horn chirp sounds indicating the Learn Mode has been enabled.
- Starting with the left front tire, hold the antenna of the J-46079 aimed upward against the tire sidewall close to the wheel rim at the valve stem location. See Special Tools . Press and release the activate button and wait for a horn chirp.
- After the horn chirp has sounded, repeat step 3 for the remaining 3 sensors in the following order:
- Right front
- Right rear
- Left rear
- After the LR sensor has been learned, a double horn chirp will sound indicating all sensors have been learned.
- Place the electronic keyless ignition in the OFF position to exit the learn mode.
- After the learn mode has been exited, adjust all tires to the recommended pressures. Refer to Vehicle Certification, Tire Placard, Anti-Theft, and Service Parts ID Label .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.