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 MANUALSCHEVROLET2009IMPALA V8-5.3LREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLANTILOCK BRAKES / TRACTION CONTROL SYSTEMSACCELERATION/DECELERATION SENSORSERVICE AND REPAIR
2009 Chevrolet Impala V8-5.3L
Acceleration/Deceleration Sensor: Service and Repair
2009 Chevrolet Impala V8-5.3LSECTION Service and Repair
Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement
Removal Procedure
1. Turn OFF the ignition.
2. Remove the front floor center console. Refer to Front Floor Console Replacement (Service and Repair).
3. Remove the 2 yaw rate sensor/lateral accelerometer mounting nuts (2).
4. Disconnect the yaw rate sensor/lateral accelerometer electrical connector (2).
5. Remove the yaw rate sensor/lateral accelerometer (1).
Installation Procedure
1. Install the yaw rate sensor/lateral accelerometer (1).
Caution: Refer to Fastener Caution (Fastener Caution).
2. Install the 2 yaw rate sensor/lateral accelerometer nuts (2).
Tighten the nuts to 6 Nm (53 lb in).
3. Connect the yaw rate sensor/lateral accelerometer electrical connector (2).
4. Install the front floor center console. Refer to Front Floor Console Replacement (Service and Repair).
5. Install a scan tool.
6. Using the special functions menu on the scan tool, reset the yaw rate sensor.
7. Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview).
RENDER: 1.0x
NO RELATED
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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.