1st Gen
Buick LaCrosse (2005–2009)
Maintenance Schedule
7 recurring services keep the 2005–2009 Buick LaCrosse healthy — starting with oil changes every 5,000 miles. Budget roughly $1,400–2,200 in routine maintenance over 100,000 miles at typical U.S. shop prices.
Applies to model years 2005, 2006, 2007, 2008, 2009
Full schedule
Intervals follow the factory maintenance schedule for the 2005-2009 Buick LaCrosse. Cost ranges are typical U.S. shop prices.
| Service | Interval | Est. cost | Notes |
|---|---|---|---|
| Oil Change | Every 5,000 mi or 6 mo | $35–55 | Engine oil and filter replacement |
| Air Filter | Every 22,500 mi or 12 mo | $25–40 | Engine air filter replacement |
| Cabin Filter | Every 22,500 mi or 12 mo | $20–35 | Cabin air filter replacement |
| Brake Fluid | Every 45,000 mi or 2 yr | $70–110 | Brake fluid flush and replacement |
| Transmission Service | Every 50,000 mi or 4 yr | $140–200 | Transmission fluid and filter change |
| Spark Plugs | Every 100,000 mi or 6 yr | $100–160 | Spark plug replacement |
| Coolant Service | Every 150,000 mi or 5 yr | $90–140 | Coolant flush and replacement |
Common questions
How often should I change the oil on a 2005–2009 Buick LaCrosse?
Every 5,000 miles or 6 months, whichever comes first. A typical U.S. shop charges $35–55. Engine oil and filter replacement.
How much does it cost to maintain a Buick LaCrosse (2005–2009)?
Routine maintenance on the 2005–2009 Buick LaCrosse runs roughly $1,400–2,200 over 100,000 miles at typical U.S. shop prices, spread across 7 recurring services. Independent shops usually land near the low end; dealers near the high end.
What is the most expensive scheduled service on this LaCrosse?
Transmission Service at $140–200, due every 50,000 miles. Transmission fluid and filter change.
Cost ranges are estimates for typical U.S. independent shops and dealers; your local prices will vary. Always confirm intervals against your owner's manual — severe driving conditions (towing, short trips, extreme heat or cold) shorten many of them.