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ProblemsByVinFile / 2018-BUICK-LACROSSENHTSA data synced 1 day ago
Buick
2018 Buick LaCrosse problems
Light NHTSA footprint — 12 owner complaints and 3 active recall campaigns. Either a clean record or thin data; we'll show what's there.
The 2018 Buick LaCrosse has 12 NHTSA owner complaints and 3 recalls on file (U.S. federal records, as of August 2026). The most-reported system is electrical at 3 complaints, typically surfacing around 100,000 miles (~$850 to repair). Source: NHTSA Office of Defects Investigation.
Solid reliability overall. Common issues are concentrated in a few systems.
0
Critical
3
Severe
0
Moderate
Should you avoid this 2018 LaCrosse?
Acceptable — with caveats
Worth owning if you verify the specific issues below before you buy.
Reliability score 8.2/10 — above the segment average
3 recall campaigns on file
Our read of the federal NHTSA complaint and recall record for this exact year and model —
not a substitute for a pre-purchase inspection. How we score.
NHTSA crash-test safety ratings
5 / 5 overall
Overall★★★★★5/5
Frontal crash★★★★★5/5
Side crash★★★★★5/5
Rollover★★★★★5/5
Driver-assist features on the tested model:
Electronic stability control: Standard · Forward collision warning: Optional · Lane departure warning: Optional
Source: NHTSA New Car Assessment Program — tested configuration: 2018 Buick LaCrosse 4 DR AWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.
Buying a used 2018 Buick LaCrosse? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or
make the seller fix it before you sign.
What to inspect on this specific car
electrical — 3 owner reports
· tends to show around 100,000 mi · ~$850 to fix
engine — 3 owner reports
· ~$3,100 to fix
Recalls to confirm are done
Run the VIN from the listing — 3 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 8.2/10 model. The priciest documented failure is
engine (~$3,100) — get the
seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report
tells you what this exact car has been through. Smart buyers get both.
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in
this vehicle's actual NHTSA record, not generic advice.
Dash light, leak, worn part — snap it and we'll read it against this car's record.
Photo attached — type a question or just hit Ask.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
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What owners are saying
recent NHTSA-filed complaints · verbatim
2018 LaCrosse· engine
If stopped uphill and the auto stop activates, when you release the brake the car can roll back, and the way people stop on top of you these days your car can roll back into them and you have to repair their car. Plus it actually takes more gas than my v8 2016 GMC sierra that…
When I get to a stop sign, and a stop light, when trying to accelerate after a complete stop, the car would struggle to accelerate to go forward. Where the shifting gears would start blinking, and the warning lights (engine power reduced, engine light, and the traction safety…
The contact owns a 2018 Buick Lacrosse. The contact stated that the key fob failed to open the doors and the vehicle was unable to be restarted. The failure had recurred on several occasions. The contact stated that the batteries in the key fob were replaced but the failure…
The 3.6 liter engine in my 2018 Buick Lacrosse Avenir only has 53,939 when we experienced a thermostat failure. The engine temperature was dead cold, and the dual electric fans were running non-stop. When I scanned the trouble code, I found PO128 which points to a faulty…
Had a problem with your 2018 Buick LaCrosse?
File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
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
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.
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. 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.
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
A reduction of braking performance can increase the risk of a crash.
Fix: 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.
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
A damaged fuel line can create a fuel leak, increasing the risk of a fire.
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. 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.
Common questions
Is the 2018 Buick LaCrosse reliable?
Mostly yes. With a reliability score of 8.2 out of 10 based on 12 owner complaints filed with NHTSA, the 2018 Buick LaCrosse is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2018 Buick LaCrosse?
The 2018 Buick LaCrosse is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Reliability score 8.2/10 — above the segment average; 3 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2018 Buick LaCrosse?
Inspect the electrical first — it's the most-reported issue on this model, with 3 owner complaints filed. Typical failure occurs around 100,000 miles. Average repair cost runs about $850 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2018 Buick LaCrosse a good used car to buy?
It scores 8.2 out of 10 on our NHTSA-based read of 12 owner complaints. The main thing to watch is electrical. Typical failure occurs around 100,000 miles. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2018 Buick LaCrosse?
Based on NHTSA records, the most-reported issue is electrical, with 3 complaints filed. Typical failure occurs around 100,000 miles. Average repair cost runs about $850 at an independent shop.
What's the most expensive thing that goes wrong?
The electrical is one of the costlier repair items. Average repair cost runs about $850 at an independent shop. Typical failure occurs around 100,000 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Buick LaCrosse has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2018 Buick LaCrosse?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 12 complaints on file and the costliest repair averaging $850, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.
Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database, last synced 1 day ago. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Buick/LaCrosse.
Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics.
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