2011 Buick Lacrosse Engine Problems

NHTSA component category: ENGINE · data through 07/12/2026

30Engine complaints

17.9%Of all 168 complaints

#1Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How engine ranks on this vehicle

ENGINE30 · 17.9%

ELECTRICAL SYSTEM26 · 15.5%

SUSPENSION25 · 14.9%

POWER TRAIN18 · 10.7%

SERVICE BRAKES17 · 10.1%

Share of the 168 complaints citing each category; one complaint can cite several. Full breakdown on the 2011 Buick Lacrosse overview page.

What owners report

“I WAS GOING 50 MILES AN HOUR DOWN THE ROAD WHEN I APPROACHED AN INTERSECTION AND STABILITRAK CAME ON AND THEN STATED REDUCED ENGINE POWER…”NHTSA complaint 11171317 — filed 01/22/2019

“ELECTRONIC CLIMATE CONTROL SYSTEM ALLOWS WINDSHIELD TO BECOME FOGGED OVER AND I CANNOT SEE TO DRIVE OR CONTROL HVAC SYSTEM. I CANNOT CONTROL THE HEATING…”NHTSA complaint 11164871 — filed 01/07/2019

“WHILE ACCELERATING FROM A STOP AT AN INTERSECTION AND INTITATING A TRN ON A CITY STREET, THE ENGINE STOPPED AND LOST POWER STEERING AND POWER…”NHTSA complaint 11164259 — filed 12/31/2018

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Engine complaints by year filed

Frequently asked questions

Does the 2011 Buick Lacrosse have engine problems?

Engine is the most-reported problem area on the 2011 Buick Lacrosse: 30 of 168 complaints on file (17.9%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2011 Buick Lacrosse have in total?

168 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 15 involved a crash, 1 involved a fire, 12 reported injuries, and none reported deaths.

What does NHTSA's engine category include?

NHTSA assigns each complaint to standard component categories; this page reports the ENGINE category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.