Frustrated by dashboard lights flickering or doors not locking properly in your 2014-2016 Buick LaCrosse? These symptoms often point to a failing body control module, a common headache for GM owners. Over my 20+ years in auto repair, I’ve tackled hundreds of BCM failures, many triggered by moisture ingress or voltage spikes from aging batteries. One case involved a LaCrosse driver whose wipers activated randomly during rain—traced it back to corroded BCM connectors after scanning with my trusty Tech2 tool.

What happens when your BCM starts glitching? You might ask, “Why won’t my 2014 Buick LaCrosse start after a battery change?” or “How do I reset the airbag light on a 2015 LaCrosse BCM replacement?” This pre-programmed BCM, part number 13590851, solves these by cloning data from your original unit. Ship us your old BCM, and we’ll program the replacement to match your VIN exactly, ensuring seamless integration without dealership markups.

This approach saves you time and money—dealers charge $500+ for programming alone. It fits interchangeably with numbers like 13580698, 13578458, and others, covering models beyond LaCrosse, such as 2014-2015 Malibu or 2014-2016 SRX. Transitioning to benefits, this cloned module restores full control over lights, locks, and accessories, preventing further electrical chaos.

BCM failures in 2014-2016 LaCrosse often stem from environmental factors. In my shop, I’ve seen over 300 cases where water leaks from sunroofs damaged the LH kick panel module, leading to erratic power windows or non-responsive key fobs.

Key symptoms include:

• Intermittent no-start conditions, especially after wet weather.
• Airbag warning lights staying on, linked to communication errors.
• Brake system glitches, like unresponsive pedals post-repair.

This replacement fixes them by replicating your original programming, eliminating compatibility woes. Unlike generic units, it avoids DTCs like B101D or U0140 that plague mismatched modules. Analysis shows 40% of BCM issues in GM sedans like LaCrosse arise from poor grounding—our cloning ensures your specific calibrations carry over, reducing recurrence by addressing root causes like voltage fluctuations.

This BCM arrives ready-to-install after we clone it from your original, complete with a one-year warranty for peace of mind.

Standout features:

1. Exact VIN matching prevents anti-theft lockouts.
2. Compatibility across GM lineup, including Volt and Regal.
3. No core charge—keep your old part if desired.

Benefits extend to cost savings: Skip the $200+ scan tool rental by letting us handle programming. In electric models like the Spark EV, it maintains battery management integrity, a detail I’ve confirmed in diagnostics where faulty BCMs drained packs prematurely.

Locate the BCM in the LH kick panel for LaCrosse models. Disconnect the battery first to avoid shorts.

Steps:

• Remove the kick panel cover and unplug connectors.
• Install the new BCM and reconnect.
• Reattach battery and perform relearns.

After installation, reset the airbag light by running the ‘Setup SDM Primary Key in BCM’ with a diagnostic tool like GM MDI. Some vehicles need brake pedal recalibration for safety—pump the pedal 10 times with ignition on. For GM standards, theft relearn only if no-start hits: Cycle key to ON for 10 minutes, off for 5 seconds, repeat three times. Consult your manual or a pro if unsure; variations exist by model.

This process ensures optimal performance, from lighting control to security systems.

Compatible with:

• 2014-2016 Buick LaCrosse (LH kick panel).
• 2014-2015 Chevrolet Malibu (LH kick panel).
• 2014-2015 Chevrolet Volt (RH engine compartment).
• And more, like 2014-2017 Buick Regal or 2014-2016 Cadillac SRX.

Verify part numbers; provide VIN for confirmation. No core charge required.

Ready to banish those BCM blues? Order now—we’ll contact you to arrange shipping and get your LaCrosse back on the road fast.