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.

2008 Hummer H3 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Installation Procedure

WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Longitudinal Accelerometer

Courtesy of GENERAL MOTORS CORP.

Install the sensor to the vehicle.

NOTE: Refer to Fastener Notice .

Install the 2 retaining nuts.
Tighten: Tighten the screws to 9 N.m (80 lb in).

Fig 2: View Of Longitudinal Accelerometer Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Install the electrical connector to the sensor.
Install the left split bench or bucket seat. Refer to Front Seat Replacement - Bucket or Split Bench Seat Replacement .

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

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.