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 MANUALSCHEVROLET2008IMPALA LT, 3.9 3REPAIR AND DIAGNOSISGENERAL INFORMATIONRESET PROCEDURESTIRE PRESSURE MONITOR SYSTEMSTPMS RESET PROCEDURESTIRE PRESSURE SENSOR RELEARNUSING SCAN TOOL
2008 Chevrolet Impala LT, 3.9 3
Using Scan Tool
2008 Chevrolet Impala LT, 3.9 3SECTION Using Scan Tool
NOTE:
Before proceeding with the steps below, ensure that no other sensor learn procedure is being performed simultaneously and that no tire pressures are being adjusted on another TPM equipped vehicle within close proximity.
- Connect scan tool. Turn ignition switch to RUN position. Apply parking brake.
- Using scan tool, select "SPECIAL FUNCTIONS".
- Select "SENSOR LEARN MODE ENABLE", and press ENTER key.
- Press ON soft key. A double horn chirp will sound, indicating the learn mode has been enabled.NOTE: The left front turn signal will also illuminate to indicate the learn mode has been enabled.
- Starting with left front tire, follow either of these 2 procedures:
- Increase/Decrease Method: Increase or decrease tire pressure for 8-10 seconds, then wait for the horn to make a chirp sound. The horn chirp may occur before the 8-10 second pressure increase/decrease time period has been reached, or up to 30 seconds after the 8-10 second pressure increase/decrease time period has been reached
- Sensor Activation Tool Method: Starting with the left front tire, hold the activation tool against the tire wall aiming upward with the antenna. Press the activate button and wait for a horn chirp.
- After horn chirp has sounded, repeat procedure for the next 3 sensors in the following order: right front, right rear and left rear.
- After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have been learned. Turn ignition switch to OFF position. Adjust all tire pressures to specification.
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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.