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.
2001 Buick Century CustomFACTORY OEM SERVICE PROCEDURE
Without Scan Tool
- Turn ignition switch to RUN position. Close all doors. Apply brakes. Press and hold driver side power door unlock switch to personalize remote unlock verification. Press UNLOCK button on desired transmitter. Vehicle will remain in current mode. Chime will sound a number of times equivalent to mode number.
- Press UNLOCK button on transmitter again to advance to next mode. Chime will sound a number of times equivalent to mode number. Continue to press UNLOCK button on transmitter until desired mode is reached.
- Press and hold driver side power door lock switch to personalize remote lock verification. Press LOCK button on desired transmitter. Vehicle will remain in current mode. Chime will sound a number of times equivalent to mode number.
- Press LOCK button on transmitter again to advance to next mode. Chime will sound a number of times equivalent to mode number. Continue to press LOCK button on transmitter until desired mode is reached. To Exit programming, turn ignition switch from RUN position or open a door.
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.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.