A Guide to Transmission Filter Kits for the 2005-2015 Buick LaCrosse
Keep your LaCrosse shifting smoothly by understanding which transmission filter kit you need and why it matters.
- Service procedures are completely different for 2005-2009 models (pan-drop filter change) versus 2010-2015 models (fluid drain only).
- For 2005-2009 models, choosing a quality brand like ACDelco or Wix is recommended for reliability.
- Symptoms like harsh shifting, whining noises, or a burning smell indicate it's time for a transmission service.
- A slight hesitation on acceleration in 2010-2013 models may be a normal characteristic and not a fault.
Understanding Your LaCrosse's Transmission Filter
Changing your transmission fluid and filter is one of the most important maintenance jobs for your 2005-2015 Buick LaCrosse. The automatic transmission has hundreds of precise moving parts. The filter is the only thing stopping tiny metal particles and debris from causing serious damage. Over time, the filter gets clogged with this debris, which can restrict fluid flow, cause the transmission to overheat, and lead to shifting problems.
Critical Differences: 2005-2009 vs. 2010-2015 Models
It is extremely important to know which generation of LaCrosse you own, as the transmission service is very different.
- 2005-2009 LaCrosse (First Generation): These models typically use the 4-speed 4T65-E transmission. The filter is located inside the transmission pan and is meant to be replaced during a routine fluid change. This is a straightforward job that involves removing the pan. 🎬 Watch: Step-by-step guide to replacing the 2005-2009 transmission filter.
- 2010-2015 LaCrosse (Second Generation): These models use a 6-speed transmission, like the 6T70. On these transmissions, the filter is often considered a "lifetime" or non-serviceable part. It is located inside the transmission case and requires transmission disassembly to replace. For these models, routine maintenance typically only involves draining and refilling the fluid. 🎬 See this video for drain and fill plug locations.
Is a Shifting Problem the Filter or Something Else?
Some 2010-2013 LaCrosse owners report a hesitation or "sag" when accelerating after coasting at low speeds. According to GM Technical Service Bulletin (TSB) PIP4112P, this is often a normal characteristic of the vehicle's torque management system and not a sign of a transmission failure. The system slowly opens the throttle to prevent driveline clunks. If you experience this specific symptom without other warning signs, it may not be a cause for concern.
Choosing the Right Aftermarket Transmission Filter Kit (2005-2009 Models)
For first-generation LaCrosse owners, selecting a quality filter kit is key. While you can't go wrong with the original part, high-quality aftermarket options offer similar performance.
Tier 1: OEM & Premium Aftermarket
- ACDelco: As the original equipment manufacturer for GM, ACDelco is the benchmark for fit and quality. You can be confident the filter media and gasket will meet factory standards.
- Wix: Wix has a strong reputation for making high-quality filters that meet or exceed OEM specifications. Forum users often recommend them as a top-tier alternative to ACDelco.
Tier 2: Quality Aftermarket
- ATP: Automotive Technologies Products (ATP) is a well-known transmission parts supplier. They are generally considered a reliable choice, with some professional mechanics reporting long-term success with the brand.
Tier 3: Economy Options
- Premium Guard, Pioneer Cable: These brands typically offer a more budget-friendly price point. They are suitable for owners looking for a basic replacement part, but may not have the same long-term reputation as premium brands.
| Part | Cost Range (New Aftermarket) | Cost Range (New OEM) |
|---|---|---|
| Transmission Filter Kit (2005-2009) | $21.50 - $63.09 | $45.00 - $80.00 |
| Transmission Filter (2010-2015) | $25.00 - $50.00 | $50.00 - $90.00 |
Frequently Asked Questions
Can I change the transmission filter on my 2012 LaCrosse myself?
It is not recommended. On 2010-2015 models with the 6-speed automatic, the filter is internal and requires significant transmission disassembly to access. This job should be left to a professional transmission shop. Routine service for these models is a fluid drain and fill.
My mechanic recommends a "transmission flush." Should I do it?
For high-mileage vehicles that have not had regular service, many experts advise against a pressurized flush, as it can dislodge debris that may cause issues. For a 2005-2009 LaCrosse, a traditional pan drop to change the filter and fluid is the safest and most effective service. This also allows for inspection of the pan magnet for signs of excessive wear.
How often should I change my transmission filter and fluid?
For the 2005-2009 models, a good interval is every 30,000 to 60,000 miles, depending on your driving conditions. If you do a lot of city driving or towing, stick to the shorter interval. For 2010-2015 models, follow the fluid change interval in your owner's manual, as the filter is not part of routine service.
Does my LaCrosse have any transmission recalls?
Searches did not find any transmission filter-related recalls for the 2005-2015 model years. A recall was issued for some 2018-2019 models for a potential transmission oil leak, but this does not apply to the 2005-2015 generation.
Helpful Videos
Technical Specifications
OEM Part Numbers: 24206433
Fitment is specific to transmission type. First generation (2005-2009) models primarily use the 4T65-E transmission. Second generation (2010-2015) models use 6-speed transmissions like the 6T70, which have an internal, non-serviceable filter.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Buick LaCrosse:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Understanding Your LaCrosse's Transmission Filter
- Critical Differences: 2005-2009 vs. 2010-2015 Models
- Is a Shifting Problem the Filter or Something Else?
- Choosing the Right Aftermarket Transmission Filter Kit (2005-2009 Models)
- Tier 1: OEM & Premium Aftermarket
- Tier 2: Quality Aftermarket
- Tier 3: Economy Options
- Frequently Asked Questions
- 🎟️ Get 5% Off