2018 Buick Lacrosse: Recalls, Problems & MPG
Here are the deets on the 2018 Buick Lacrosse: 3 recalls, 12 owner complaints and up to 24 mpg combined.
Recalls
3 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Fuel system Vehicle recall #18V358000 · 2018 · 895 vehicles
What's wrong: The high pressure fuel pump May detach from its mounting flange, possibly resulting in the pump damaging the high pressure fuel line.
Why it matters: A damaged fuel line can create a fuel leak, increasing the risk of a fire.
The fix: Gm will notify owners, and dealers will replace the high pressure fuel pump, and high pressure fuel pipe, free of charge. The recall began July 2, 2018.
Brakes (hydraulic) Vehicle recall #18V576000 · 2018 · 210,628 vehicles
What's wrong: The rear brake caliper pistons May have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
Why it matters: A reduction of braking performance can increase the risk of a crash.
The fix: Gm will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018.
Transmission & drivetrain Vehicle recall #20V668000 · 2020 · 194,105 vehicles
What's wrong: The start/stop accumulator endcap May have missing bolts.
Why it matters: Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and May progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source May increase the risk of fire.
The fix: Gm will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 0 injuries and 0 deaths were reported.
What owners describe
- Electrical (5): the most common themes are electrical failure (3), warning light on (2).
- Engine (4): no single recurring theme in the descriptions.
- Transmission & drivetrain (3): the most common themes are warning light on (2), hard / delayed shifting (2).
- Speed control / throttle (2): no single recurring theme in the descriptions.
The 2018 Buick Lacrosse has 12 owner complaints, ranking #14 of 15 Lacrosse model years for complaints (well below the 141 average). Complaints peaked in 2023 (3 filed that year). The typical problem showed up when the car was about 5 years old, at a median of 26,600 miles. Neighboring years: 2017 (36 complaints, 2 recalls), 2019 (6 complaints, 2 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 3.6 L 6-cyl | Automatic (S9) | Front-Wheel Drive | 21 | 30 | 24 | Regular |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2018 Buick Lacrosse.
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Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
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FAQ
Does the 2018 Buick Lacrosse have any recalls?
Yes. NHTSA lists 3 vehicle recalls for the 2018 Buick Lacrosse. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2018 Buick Lacrosse problems?
Owners have filed 12 complaints with NHTSA. The most-reported areas are electrical (5), engine (4), transmission & drivetrain (3).
What gas mileage does the 2018 Buick Lacrosse get?
EPA ratings run up to 24 mpg combined (3.6 L, Automatic (S9)), across 1 engine and transmission combos.
Where can I get a 2018 Buick Lacrosse repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.