AI Damage2019 Buick Lacrosse: common problems
Owners of the 2019 Buick Lacrosse filed 7 complaints with NHTSA, most often about engine and electrical system. The maker issued 575 service bulletins for this year. We found 1 repair videos on YouTube. Details by component below, with sources.
Key figures
- Owner complaints
- 7
- Technical service bulletins (TSB)
- 575
- YouTube repair videos
- 1
What fails most often
- 1 Engine 43% of all complaints
- 2 Electrical system 14% of all complaints
- 3 Fuel/propulsion system 14% of all complaints
- 4 Suspension 14% of all complaints
- Engine: 3 complaints (43% of all); manufacturer bulletins for this component: 62.
- Electrical system: 1 complaints (14% of all); manufacturer bulletins for this component: 123.
- Fuel/propulsion system: 1 complaints (14% of all); manufacturer bulletins for this component: 12.
- Suspension: 1 complaints (14% of all); manufacturer bulletins for this component: 12.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 3.6 L · petrol · 6 cyl
- 2.5 L · hybrid · 4 cyl
- automatic, 6-speed
- automatic, 9-speed
Drive: FWD, AWD
Symptoms owners describe
How many of the 7 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 3 | 0 | 62 |
| Electrical system | 1 | 0 | 123 |
| Fuel/propulsion system | 1 | 0 | 12 |
| Suspension | 1 | 0 | 12 |
| Equipment | 0 | 0 | 189 |
| Engine and cooling | 0 | 0 | 94 |
| Powertrain | 0 | 0 | 58 |
| Wheels | 0 | 0 | 34 |
| Structure | 0 | 0 | 26 |
| Fuel system | 0 | 0 | 21 |
| Tires | 0 | 0 | 20 |
| Service brakes | 0 | 0 | 12 |
| Steering | 0 | 0 | 12 |
| Visibility | 0 | 0 | 12 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Electronic struts have been discontinued but not replaced with better struts leaving me to drive with worn, unsafe struts.
When accelerating to get on to highway pushing on pedal but nothing happens, have to get pushing up and down until it goes. Has done this four time's and dealer says Buick has no fix for it. Have almost got rear ended twice.
The failure occurred while the vehicle was idling in a drive-thru with the temperature gauge reading that the engine was in the cold position. The driver then drove at speeds between 60 - 70 MPH; after arriving at the residence, the engine fan failed to turn off.
Occasionally there is a loud sound in the cabin of water sloshing back and fourth under the dashboard. Some days it will happen when the engine starts. Other times, it is after driving several miles. Sometimes it happens a few days in a row. Other times it will go a week with no noise.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,591 of 2,102 model years in the NHTSA data (among the 24% least complained about).
On average one model year of the Lacrosse has 21 complaints (5 years in the data). This year has 7, below average.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance
- PI to help diagnose A/C concern
- This preliminary information communicates information about how to determine if a wheel and tires size…
- This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a…
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic…
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
- This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic…
- This service bulletin provides information on Tire Sidewall Irregularities
- This service bulletin provides information on replacing the intake manifold when the engine is replaced…
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- This Preliminary Information communication provides information to the technician about vehicles that have…
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions…
- The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle…
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
- This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and…
This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
NHTSA lists 575 bulletins for this year; the 12 newest are shown here.
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other years of this model
Questions and answers
What are the most common problems with the 2019 Buick Lacrosse?
Owner complaints to NHTSA most often mention: engine, electrical system, fuel/propulsion system. Total complaints: 7. The most frequent symptoms in complaint texts: knocking, grinding or other noise (29%), jerking, harsh shifts (14%), loss of power / limp mode (14%).
How many service bulletins (TSB) were issued for the 2019 Buick Lacrosse?
NHTSA lists 575 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2019 Buick Lacrosse from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2019 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.