2006 – 2011 Buick Lucerne Body Control Module (BCM) 20935349 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com
Ever dealt with your 2006-2011 Buick Lucerne’s doors refusing to lock during a rainy commute, or the interior lights flickering like they’re possessed? As a seasoned mechanic who’s seen countless GM owners frustrated by these glitches, I know how a faulty Body Control Module can turn a smooth drive into a headache. Questions like “why won’t my Buick Lucerne power windows work intermittently?” or “how to resolve BCM-related DTC codes in older Lucerne models?” often lead folks here. This pre-programmed BCM, part number 20935349, arrives flashed with the latest GM updates using your VIN for a perfect match. It tackles those body electrical woes head-on, clearing trouble codes and restoring seamless operation. Drawing from years in the shop, I’ve watched replacements like this prevent minor annoyances from escalating into towing nightmares, especially in vehicles with high mileage. Compatible with a range of GM models, it ensures your Lucerne runs reliably, boosting overall vehicle safety and convenience without the guesswork.
Key Features & Benefits
- Arrives fully programmed to your specific VIN, eliminating compatibility headaches and ensuring it syncs flawlessly with your Lucerne’s systems for immediate functionality.
- Incorporates the newest GM software flashes, which can clear persistent DTC codes and enhance features like automatic lighting control.
- Backed by a one-year warranty, giving you peace of mind against defects—I’ve seen these hold up in demanding conditions, from city traffic to long highway hauls.
- No core charge means you keep your old part without extra fees, simplifying the swap and saving on costs.
- Supports improved electrical reliability, such as stable power distribution to windows and locks, which is crucial for older models facing corrosion-related failures.
- Optimizes vehicle security systems, potentially resolving anti-theft glitches that could leave you stranded—real-world tip: always check battery connections first to rule out simple causes.
Common Issues & How This Fixes Them
In my two decades fixing GM vehicles, BCM failures in the 2006-2011 Buick Lucerne often show up as erratic behaviors tied to body electronics. One common headache is intermittent power window operation—caused by degraded module circuits that disrupt signal flow, leading to windows that stick or fail in cold weather. This BCM replacement restores consistent voltage regulation, fixing the root cause and preventing further wear on motors. Another issue: dashboard warning lights staying on, often from communication errors triggering DTC codes like U0140 or B1370. By installing this updated unit, you clear those codes effectively, as it recalibrates the network for smoother data exchange. Owners also report malfunctioning door locks or alarms that drain the battery overnight; these stem from faulty relay controls within the module. Our pre-flashed BCM addresses this by integrating fresh firmware, improving response times and energy efficiency. For towing enthusiasts with Lucerne variants, a bad BCM might cause trailer light inconsistencies, risking safety— this part enhances reliability, ensuring stable connections. Through shop anecdotes, I’ve analyzed how moisture ingress accelerates these problems in right-side dash locations; proactive replacement avoids costly diagnostics. Overall, it delivers substantial value by resolving these without invasive repairs, empowering DIYers to regain control.
Easy Installation Guide
- Provide your VIN after purchase so we can program the BCM with the latest GM updates tailored to your 2006-2011 Buick Lucerne.
- Disconnect the battery to ensure safety and prevent electrical surges—locate the BCM on the right side of the dash.
- Remove the old module by unplugging connectors and unscrewing mounts; compare part numbers to confirm compatibility.
- Install the new BCM securely, reconnecting all harnesses—double-check for secure fits to avoid future shorts.
- Reconnect the battery and perform any necessary relearns: If a no-start occurs, conduct theft deterrent relearn by cycling the key from off to on (engine off) 3 times, waiting 10 minutes each cycle.
- Reset the airbag warning light via the ‘Setup SDM Primary Key in BCM’ procedure with a diagnostic tool; some may need brake pedal recalibration for optimal safety—consult your manual or a pro if unsure.
Fitment Details
Compatible with:
2006 – 2011 Buick Lucerne
Verify part numbers; provide VIN for confirmation. No core charge required.
Don’t let BCM troubles sideline your Buick Lucerne any longer—grab this pre-programmed module today to restore reliable performance and clear those nagging codes. With our one-year warranty and expert programming, you’re set for worry-free driving. Order now from Highway71AutoParts.com and get back on the road confidently!