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.
Installation Procedure
Upon re-assembly index the heater cam (1), and the mode cam (2) large male teeth to the large female teeth as indicated by the arrows for proper alignment.
- CAUTION:
Refer to Fastener Caution .
Heater and Air Conditioning Mode Control Cam(2) - Mode Cam - Install
- Heater and Air Conditioning Mode Control Cam Bolt(1) - Install and tighten2 N.m (18 lb in).
Floor Air Outlet Duct(2) - Install - Floor Front Air Outlet Duct Replacement - Left Side (Chevrolet)Floor Front Air Outlet Duct Replacement - Left Side (Buick)
Instrument Panel Knee Bolster(2) - Install - Instrument Panel Knee Bolster Replacement (Buick)Instrument Panel Knee Bolster Replacement (Chevrolet)
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.