Buyer Research

2012 Buick Regal — Should You Buy One?

Typical asking price: $5,000–$10,000. There are 4 high-severity known issues you need to know before handing over a check.

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Kestrel Take

The year the Regal line filled out — the 2.4L base car, the eAssist mild hybrid, the 2.0T Turbo and the new GS — and the record is a third the size of the 2011's: 92 complaints, seven recalls. The story owners actually tell is water in the headlights: 36% of complaints are the HID headlamp assemblies fogging, filling and going dark, and a pair each runs to four figures. Under that sit the same 2.4L engine faults as the 2011 (timing chain, oil consumption), an eAssist generator module recall that can stall the car, and a rear toe-link recall that only applies if the car ever lived in a road-salt state — three campaigns' worth, the newest issued in 2026. Check the headlights for fog on a cool morning, scan the 2.4L for timing codes and check its oil, run the VIN for all seven recalls, and prefer the 2.0T if you can find one: it does not share the four-cylinder's chain and ring problems.

What we checked

Reconciled against public records, 2026-09-25

NHTSA holds 92 owner complaints for the 2012 Buick Regal, and 7 recall campaigns.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. 36% of them are about one thing — the lights. That much concentration is a genuine pattern rather than background noise, and it is the first thing to check on any example you look at.

7 recall campaigns cover this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2012 Buick Regal

Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.

HID headlight assemblies leak, fill with water and go dark — one side at a timeHigh — wallet impact

33 of 92 complaints are exterior lighting, and nearly every one is the same: condensation inside the headlight every morning, then standing water, then a blown fuse or a dead HID ballast, and the driver's side usually goes first with the passenger side following a year later. One owner lost the headlight, turn signal and brake light on one side together. The seal on the assembly fails, and the fix is the whole housing, which on the HID-equipped cars is expensive. Look at both headlights on a cool morning for fog or a waterline, and check that both low beams, high beams and turn signals work. Two small recalls live here too: 12V093 and 12V484 are both body-control-module software fixes — one for lamp behaviour that broke a federal standard, one so the flasher speeds up when one of the two turn-signal bulbs dies. Both free; run the VIN.

Repair cost: $600–$1,400 per headlight assembly; $0 with the recalls — verify they were performed

Source: NHTSA complaints filed under the lights (33); 7 NHTSA recall campaigns on this model year.

2.4L burns oil and stretches its timing chain — both can end in a dead engineHigh — wallet impact

21 engine complaints, and they split cleanly. Half are oil: a quart every 1,000 miles, an owner changing it every 2,300 miles and still losing the engine to a dry sump. This is the 2.4L Ecotec's piston-ring problem, and the cure is pistons and rings, or an engine. The other half is the timing chain — a rattle after an oil change, then the mechanic recommending a new engine at 80,000 miles because the chain has skipped. One stall in a drive-thru with a smell of fuel is in here too. Check the dipstick before the test drive and ask what the seller adds between changes; scan for P0008, P0016 and P0017; start it cold and listen for a chain rattle. The 2.0T in the Turbo and GS is a different engine and does not carry either fault.

Repair cost (estimate): $1,200–$2,500 for the timing chain set; $2,500–$4,500 for pistons and rings; $4,000–$6,500 for a replacement engine — around 87% of what this car is typically worth

Source: NHTSA complaints filed under the engine (21).

eAssist generator control module can overheat, smoke and stall the car (recall)High — wallet impact

Recall 13V173 covers 2012 Regals with the eAssist mild-hybrid system: the generator control module can fail, the 12-volt battery gradually drains, the engine stalls or will not start, and owners may smell burning or see smoke from the module. Dealers test and replace the GCM free. One owner here has the P0062 code that points at it. The rest of the 19 electrical complaints are the cluster going blank and turn signals dying (one with a brief loss of power while turning), a car that shakes at a red light and starts reluctantly, and interior lights and radio cycling on their own. If it is an eAssist car, run the VIN first; on any 2012, have the battery and charging system load-tested — that is where most of these stories begin.

Repair cost: $0 with the recall — verify it was performed; $200–$450 for a battery

Source: NHTSA complaints filed under electrics and electronics (19); 7 NHTSA recall campaigns on this model year.

Rear toe links rust through and can fracture — salt-state cars (three recalls)High — wallet impact

Three campaigns cover the same part on the 2012 Regal: 20V764, 21V00F and, for the Turbo and GS trims, 26V113 issued in 2026. If the car was sold or ever registered in a road-salt state — the list runs from Maine to Missouri and down to the District of Columbia — the rear suspension toe links can corrode and snap, and a snapped toe link lets the rear wheel steer on its own. Dealers replace both links and the adjuster fasteners free. Eleven suspension complaints, one with a crash. Run the VIN, ask where the car has lived, and get under the rear with a flashlight: the toe links are the thin adjustable arms running from the subframe to each rear knuckle, and flaking rust on them is a walk-away until the recall is done.

Repair cost: $0 with the recall — verify it was performed

Source: NHTSA complaints filed under the suspension (11); 7 NHTSA recall campaigns on this model year.

Power seat height adjuster bolt can fall out and drop the seat while driving (recall)Medium

Recall 14V447 covers the power height-adjustable front seats on the 2012 Regal: a shoulder bolt in the height adjuster can work loose and the seat drops without warning. Dealers replace the bolts free. Run the height adjuster on the driver's seat to the top and bottom and listen for a clunk or feel for play when you rock the seat; then check the recall status on the VIN lookup along with the other six.

Repair cost: $0 with the recall — verify it was performed

Source: 7 NHTSA recall campaigns on this model year.

Brake pedal that sinks, StabiliTrak warnings, and a throttle that hesitatesLow

Nine brake complaints, seven stability-control and six speed-control — small clusters, and together they describe a pulsing or sinking pedal, a Check StabiliTrak message that appears with a rough idle, and a pedal press that takes a beat to answer. One crash is filed in each of the three. On a car this age the pedal feel is rotors and fluid; the stability and throttle messages usually trace to a dirty throttle body or a weak battery rather than the brake or ABS hardware. Firm stop from 50 mph, then a hard pull-away from three or four stops.

Repair cost (estimate): $150–$600

Source: NHTSA complaints filed under the brakes (9), stability control (7), throttle and cruise control (6).

Walk-Away Red Flags

✗Fog, droplets or a waterline inside either headlight lens
✗Oil low on the dipstick, or a seller who keeps a quart in the trunk
✗A rattle from the top of the 2.4L for the first seconds of a cold start
✗Any of the seven recalls open on the VIN lookup, especially the toe-link campaigns on a car from a salt state
✗Flaking rust on the thin rear toe-link arms
✗Instrument cluster that flickers or goes blank when the engine is cranked

Good Signs

✓Both headlight assemblies replaced with an invoice, and both lenses clear on a cool morning
✓All seven recalls shown closed on the NHTSA VIN lookup
✓A 2.0T Turbo or GS — a different engine that sidesteps the 2.4L's chain and ring faults
✓Oil at the full mark with a record of changes every 5,000 miles or less
✓New toe links visible under the rear with the dealer recall printout
✓Battery load test passed with a date on the sticker inside the last three years