Last updated: 2026-07-25
2018 Buick Lacrosse Reliability Report
The 2018 Buick Lacrosse scores 75/100 ("Good"). With 3 recalls and 12 owner complaints, reliability is acceptable but not class-leading.
Recalls
3
Complaints
12
Complaint Rate
7.7per 10,000 sold
Est. Repair Cost
$569
Annual Fuel Cost
$2,500–$2,600
Detailed Score Breakdown
Component-weighted complaints normalized by sales volume
Independent repair cost ratings
Recall count weighted by severity
Breadth of reported problem categories
The Verdict
Acceptable reliability — worth considering with a pre-purchase inspection.
Top Issues to Watch
- ENGINE (3)
- ELECTRICAL SYSTEM (3)
- POWER TRAIN (2)
Generation & Refresh (US)
2018 is year 2 of the Third generation (2017).
- Redesigned for the 2017 model year.
- A refresh arrives in 2019.
- 3rd generation Lacrosse (US).
What this means for buyers
Year 2 is typically a safer pick than the first model year — early issues are more likely to be identified, but the platform is still new.
If you're comparing prices, check 2017 (redesign year) vs 2018+ pricing and recalls.
2017: Third generation (2017) Launch
Generation start — new platform.
2018: This Model Year
2018 is year 2 of the Third generation (2017).
2019: Mid-Cycle Refresh
Updated features and styling tweaks.
Should You Buy the 2018 Buick Lacrosse?
At 75/100, the 2018 Buick Lacrosse lands in "Good" territory — acceptable, but not class-leading. 2018 is year 2 of the Third generation (2017).
Owners log 12 complaints on this model year — enough to suggest attention is needed, but no single failure mode dominates yet.
Get a pre-purchase inspection on any used example, with extra attention to engine (3). An extended warranty is worth pricing out.
Compared to the 2019 Buick Lacrosse, which scored 1 points higher.
Pros
- +Acceptable reliability score
- +Infrequent unscheduled repairs
- +Low major repair risk (12%)
- +Below-average complaint rate for Sedan
Cons
- −Moderate recall count
- −ENGINE: Two main issues with the 2018 Buick Lacrosse's engine (3 complaints)
- −ELECTRICAL SYSTEM: Vehicle shutting off suddenly and problems with the key fob not functioning... (3 complaints)
Compare 2018 Buick Lacrosse With
2018 Chrysler 300
Reliability: 66/100
2018 Nissan Maxima
Reliability: 72/100
2018 Dodge Charger
Reliability: 69/100
2018 Honda Accord
Reliability: 63/100
2018 Toyota Camry
Reliability: 65/100
Common Problem Categories
Safety
LOW RISK- 3 manufacturer recalls issued
Other
HIGH RISK- ENGINE (3)
- ELECTRICAL SYSTEM (3)
Recall Overview
3
recalls on record
A moderate 3 recalls are on file for the 2018 Buick Lacrosse. Each one points to a specific safety or compliance issue identified by the manufacturer or NHTSA — check the list below before buying.
NHTSA.gov →Complaint Breakdown
7.7
per 10,000 soldSegment avg: 24.4
Safety Incidents
0
Crashes
0
Fires
0
Injuries
0
Deaths
NHTSA 5/5 Stars
Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.
2018 Buick Lacrosse Recall Details
3 recalls have been issued for the 2018 Buick Lacrosse. All recall repairs are performed free of charge at authorized dealerships.
FUEL SYSTEM, GASOLINE
General Motors LLC (GM) is recalling certain 2015-2018 GMC Canyon, 2016-2017 Buick Envision, 2016-2018 Chevrolet Colorado and Malibu, 2017-2018 GMC Acadia, 2018 Buick LaCrosse, Cadillac ATS, Chevrolet Equinox, and GMC Terrain vehicles. The high pressure fuel pump may detach from its mounting flange, possibly resulting in the pump damaging the high pressure fuel line.
Consequence
A damaged fuel line can create a fuel leak, increasing the risk of a fire.
Remedy
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. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18188.
SERVICE BRAKES, HYDRAULIC
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
Consequence
A reduction of braking performance can increase the risk of a crash.
Remedy
GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18279.
POWER TRAIN
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
Consequence
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.
Remedy
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. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.
Buying a used 2018 Buick Lacrosse? Check its history first
Every 2018 Buick Lacrosse has a different past. A VIN check reveals hidden accidents, title problems, odometer rollbacks, and open recalls that reliability scores can't show you.
- Accidents
- Open Recalls
- Title History
- Odometer Rollback
2018 Buick Lacrosse NHTSA Safety Ratings
Overall Safety Rating
Crash Test Results by Configuration (expand)
Gas Powertrain
Rollover risk: 9.9%
Safety Technologies
Buick LacrosseRepair Costs & Maintenance
Maintenance Rating
4Maintenance rating: 4 out of 5Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.
Est. Annual Maintenance
$569
vs $526 avg for midsize cars
vs $652 avg for all vehicles
Repair Frequency
0.3
unscheduled repair visits per year
Severe Repair Probability
12%
chance of a major repair
Annual Cost Comparison
Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.
MPG & Annual Running Costs
Gas
23–24 MPG
Running cost: $3,050–$3,150/yr
Fuel + repair
20–21 city / 29–30 hwy MPG
Hybrid
29 MPG
Running cost: $2,600/yr
Fuel + repair
25 city / 35 hwy MPG
Running cost includes EPA fuel-cost estimate and independent repair-cost data (repair cost estimated at model level). Excludes routine maintenance, depreciation, and insurance. Data as of 2018 EPA label cycle.
Gas trims
| Trim | Drive | Trans. | City | Hwy | Comb | Fuel Cost |
|---|---|---|---|---|---|---|
| LaCrosse 3.6L 6-cyl | Front-Wheel Drive | Automatic (S9) | 21 | 30 | 24 | $2,500 |
| LaCrosse AWD 3.6L 6-cyl | All-Wheel Drive | Automatic (S9) | 20 | 29 | 23 | $2,600 |
Hybrid trims
| Trim | Drive | Trans. | City | Hwy | Comb | Fuel Cost |
|---|---|---|---|---|---|---|
| LaCrosse eAssist 2.5L 4-cyl | Front-Wheel Drive | Automatic 6-spd | 25 | 35 | 29 | $2,050 |
Used Buying Checklist
Key things to inspect or verify before purchasing a 2018 Buick Lacrosse.
Check thermostat for failure symptoms like cold engine temperature and running fans
Test vehicle for sudden shutdowns and inspect electrical system reliability
Verify key fob functionality and vehicle start reliability
Inspect for unintended acceleration or deceleration issues
Test accelerator pedal response and check for 'Engine Power Reduced' messages
Ensure transmission shifts smoothly and no warning lights are present
2018 Buick Lacrosse Common Problems by Component
12 owner complaints grouped by vehicle system.
ENGINE
3 complaintsOwners report two main issues with the 2018 Buick Lacrosse's engine. First, multiple owners describe problems with the thermostat, noting failures occurring around 53,939 to 56,000 miles. Symptoms include the engine temperature reading as cold and continuous operation of the dual electric fans, with trouble codes indicating a faulty thermostat. Second, one owner mentions a concern with the auto stop feature, where the vehicle can roll backward when stopped uphill, potentially leading to rear-end collisions. These issues may present maintenance and safety considerations for prospective buyers, particularly regarding the thermostat's location and repair costs.
ELECTRICAL SYSTEM
3 complaintsOwners of the 2018 Buick Lacrosse report issues with the electrical system, primarily involving the vehicle shutting off suddenly and problems with the key fob not functioning properly. One owner describes the vehicle shutting down unexpectedly even after the battery and software were addressed, while another mentions recurring key fob failures preventing door access and vehicle start, persisting even after battery replacement. Complaints note these issues around 100,000 miles. Safety implications include the potential for reduced power and acceleration, which could pose risks in traffic situations. Buyers should be aware of these electrical concerns, as they may affect vehicle reliability and safety.
POWER TRAIN
2 complaintsOwners of the 2018 Buick Lacrosse report issues primarily related to the vehicle's power train, with symptoms including the car slowing to a crawl speed, self-applying brakes, and displaying a "service transmission" message. Multiple complaints frequently mention problems with acceleration after stopping, where the vehicle struggles to move forward, and shifting gears blink while warning lights such as "engine power reduced" and "traction safety collision" illuminate. These issues reportedly lead to situations where the car rolls backward, posing a safety risk at stoplights and stop signs. The complaints do not specify exact mileage, but they do indicate that these problems are ongoing and unresolved despite attempts to address them through dealership service. Potential buyers should be aware of these recurring issues and the associated safety implications.
VEHICLE SPEED CONTROL (2 complaints)
VEHICLE SPEED CONTROL
2 complaintsOwners of the 2018 Buick LaCrosse report issues with sudden unintended acceleration and problems with the accelerator pedal position sensor. Symptoms frequently described include the vehicle unexpectedly accelerating when the brake is engaged and a loss of motive power with a displayed "Engine Power Reduced" message. One complaint notes these issues occurring at approximately 26,600 miles. Safety implications include loss of control due to unexpected acceleration and deceleration. Buyers should be aware of these potential issues, particularly the recurring need for accelerator pedal position sensor replacement.
SERVICE BRAKES (1 complaints)
SERVICE BRAKES
1 complaintThe contact owns a 2018 Buick Lacrosse. The contact stated while driving at an undisclosed speed, the vehicle hesitated to accelerate while the accelerator pedal was depressed. The contact pulled over and checked underneath the vehicle. The contact discovered that the START/STOP accumulator endcap bolt had detached, causing transmission fluid to leak onto the ground. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that in 2021, he detected an abnormal fuel odor coming through the air vents while driving. The brake pedal also stuck while depressed, and the rear brake pads needed to be replaced frequently. The contact stated that the vehicle was taken to an unknown dealer in 2021 for the fuel odor, and an unknown fuel system part was replaced. The contact related the failures to NHTSA Campaign Numbers: 20V668000 (Power Train), 18V358000 (Fuel System, Gasoline), and 18V576000 (Service Brakes, Hydraulic); however, the VIN was not included in the recalls. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was 161,188.
UNKNOWN OR OTHER (1 complaints)
UNKNOWN OR OTHER
1 complaintI SENT THIS EMAIL TO THE SURVEY FOR RANDY MARION DEALERSHIP ON STATESVILLE RD HERE IN HUNTERSVILLE NC. AGAIN I DO NOT WANT THE VEHICLE BACK AS IT IS TOO MUCH RISK FOR ME, MY FAMILY AND MY WORK. IT PUT ME IN A DANGEROUS SITUATION FROM BEING STUCK IN THE STREET AND DEALING WITH AN ANGRY PASSENGER. WE MUST GET THIS RESOLVED IMMEDIATELY. I AM LOSING MONEY. I NEED A DEPENDABLE VEHICLE. THE SALES PART WENT AS EXPECTED. A LOT OF SMILES AND VERY ENGAGED IN CONVERSATION. THE SALES GUY MIKE WAS VERY NICE. NO PRESSURE. THE PROBLEM IS AFTER THE CARE WAS SIGNED FOR. AFTER THE EXCITEMENT OF GETTING A BRAND NEW VEHICLE I REALIZED I PAID TOO MUCH AND DIDN'T UNDERSTAND ALL THE CHARGES THAT JACKED THE TOTAL UP SO FAR. HOWEVER THAT'S NOT MY ISSUE. MY ISSUE IS THE BRAND NEW CAR IS SHUTTING OFF IN THE MIDDLE OF THE STREET. IT GOES COMPLETELY DEAD. LEAVING ME STRANDED. IT HAPPENED THREE TIMES ON 10/5. THE BRAND NEW VEHICLE IS PPUTTING ME IN A DANGEROUS SITUATION FOR ME, MY FAMILY AND MY CLIENTS. SO I'M NOW LOSING INCOME AND IT ALSO CAUSED ME TO HAVE A BAD CUSTOMER SERVICE EXPERIENCE WITH A CLIENT WHICH EFFECTS MY PROFESSIONAL REPUTATION. THE PROBLEM WITH THE VEHICLE IS MAJOR AND A SERIOUS SAFETY ISSUE. YOUR SERVICE TEAM IS WORKING WITH GMC ENGINEERS TO FIGURE OUT HOW TO FIX THE PROBLEM, HOWEVER I DO NOT WANT THIS VEHICLE. YOUR SALES MANAGER STEVE SAYS THIS IS UP TO GMC TO DETERMINE IF A VEHICLE CAN BE EXCHANGED OR NOT. THIS IS COMPLETELY UNACCEPTABLE FOR ME. I WORK TOO HARD AND A LOT OF PEOPLE DEPEND ON ME.
When Do 2018 Buick Lacrosse Problems Start?
Based on owner complaint patterns, here's when common issues tend to appear.
Best & Worst Buick Lacrosse Years
Comprehensive reliability analysis based on NHTSA data, owner complaints, and historical performance.
Best Buick Lacrosse Years to Buy
Based on reliability index scoreThe best Buick Lacrosse year is 2019 with a reliability score of 76/100, rated good. Other strong picks include 2018 (75/100).
2019
2018
(Current Model)
Buick Lacrosse Years to Avoid
No Buick Lacrosse years are statistical outliers in our data.
All model years score consistently well. The Buick Lacrosse maintains one of the highest industry standards for long-term durability across its entire production span.
Buick Lacrosse Reliability Score Trend
Buick Lacrosse reliability has remained consistent across model years, averaging 76/100.
Scores 0–100. Higher is better. Current year highlighted.
| Year | Score | Rating |
|---|---|---|
| 2018 | 75/100 | Good |
| 2019 | 76/100 | Good |
Buick Lacrosse Reliability Compared to Other Years
| Year | Score | vs Prior Year | Rating | Recalls | Complaints |
|---|---|---|---|---|---|
| 2019 | 76/100 | +1 | Good | 2 | 6 |
| 2018(selected) | 75/100 | — | Good | 3 | 12 |
Frequently Asked Questions
Is the 2018 Buick Lacrosse reliable?
What are the most common problems with the 2018 Buick Lacrosse?
How many recalls does the 2018 Buick Lacrosse have?
Is the 2018 Buick Lacrosse expensive to maintain?
Don’t buy a 2018 Buick Lacrosse without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.
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How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent— Top-tier reliability, minimal issues
- 60–79: Good— Reliable with some minor concerns
- 40–59: Mixed— Notable issues, research before buying
- 0–39: Risky— Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
Get notified when new recalls or reliability data is added for the Buick Lacrosse.
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