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.
Sensor Cluster (Accelerometer)
The sensor cluster (also called the accelerometer) consists of several different sensors all packaged together in one unit. Four wheel drive (4WD) hybrid vehicles only use the longitudinal accelerometer portion of the sensor cluster. Front wheel drive (FWD) hybrid vehicles do not require the sensor cluster. The longitudinal accelerometer measures the acceleration corresponding to the force involved when the vehicle moves forward and rearward in the horizontal plane, along the centerline of the vehicle's front and rear wheels. This information is used by the ABS module to enhance the 4WD ABS.
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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.