2011 Buick Regal Engine Problems

NHTSA component category: ENGINE · data through 07/14/2026

108Engine complaints

38.7%Of all 279 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

ENGINE108 · 38.7%

ELECTRICAL SYSTEM70 · 25.1%

POWER TRAIN37 · 13.3%

EXTERIOR LIGHTING36 · 12.9%

SERVICE BRAKES32 · 11.5%

Share of the 279 complaints citing each category; one complaint can cite several. Full breakdown on the 2011 Buick Regal overview page.

What owners report

“THE CONTACT OWNS A 2011 BUICK REGAL. WHILE DRIVING AND WHILE STATIONARY, THE VEHICLE SHUT OFF UNEXPECTEDLY. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE…”NHTSA complaint 10919812 — filed 10/28/2016

“VEHICLE CUT OFF WHILE I WAS DRIVING. LOSS ALL CONTROL WHILE TURNING A CORNER IN TOWN”NHTSA complaint 10903205 — filed 09/02/2016

“THE CONTACT OWNS A 2011 BUICK REGAL. WHILE DRIVING AT AN UNKNOWN SPEED, THE ENGINE LOST POWER, STALLED, AND THE STEERING SEIZED WITHOUT WARNING. THE…”NHTSA complaint 10889371 — filed 07/28/2016

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 Regal have engine problems?

Engine is the most-reported problem area on the 2011 Buick Regal: 108 of 279 complaints on file (38.7%). Complaints are unverified owner reports, not confirmed defects.

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

279 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 7 involved a crash, 7 involved a fire, 7 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 07/14/2026.