Problems · NHTSA complaints

2004 Buick Regal problems

Owners filed 66 complaints about the 2004 Buick Regal with NHTSA between Aug 2004 and Dec 2020. The most-cited component is electrical system (35).

Complaints
66
Filed with NHTSA
Crashes
0
Reported by owners
Fires
2
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system35
  2. Engine18
  3. Engine and engine cooling8
  4. Steering6
  5. Electronic stability control (esc)5
  6. Power train3
  7. Service brakes, hydraulic3
  8. Vehicle speed control2
  9. Suspension2
  10. Visibility2
  11. Exterior lighting1
  12. Service brakes1
  13. Fuel system, other1
  14. Tires1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 9, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20041
20054
20061
20070
20081
20093
20100
20111
20121
20130
201414
201510
201620
20173
20183
20192
20202

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Electrical system

35 reports
“ALL 4 POWER WINDOW MOTORS DO NOT WORK. THEY ALL FAILED WITHIN 6 MONTHS OF EACH OTHER. I CHECKED ON YOU TUBE AND FOUND THAT ALMOST ALL BUICK REGALS HAVE THIS PROBLEM OF POWER WINDOW MOTORS BREAKING. THERE ARE HUNDREDS OF COMPLAINTS ON YOU TUBE ALONE FOR THIS ISSUE. I BELIEVE THIS IS PROOF THAT THE POWER WINDOW MOTORS ARE DEFECTIVE AND PROBABLY MADE THIS WAY TO FORCE OWNERS TO MAKE EXPENSIVE REPAIRS. I AM ASKING YOU TO FORCE BUICK TO RECALL THEIR REGAL MODELS AND HAVE THE WINDOW MOTORS REPAIRED AT BUICK'S EXPENSE.”
Owner complaint to NHTSAFiled Dec 8, 2020Electrical system, Unknown or otherODI 11378434

Engine

18 reports2 fires
“TL* THE CONTACT OWNS A 2004 BUICK REGAL. THE CONTACT STATED THAT THE ENGINE WOULD SHUT OFF WHILE THE VEHICLE WAS IN OPERATION. THE VEHICLE WAS ABLE TO RESTART BY USING THE KEY FOB, BUT WOULD SHUT BACK OFF WHEN THE KEY WAS INSERTED IN THE IGNITION. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED, BUT A FAILURE WAS NOT FOUND. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 97,000.”
Owner complaint to NHTSAFiled Dec 18, 2018Electrical system, EngineODI 11162188

Engine and engine cooling

8 reports2 related recalls
“2004 BUICK REGAL. CONSUMER WRITES IN REGARDS TO DROPS OF ENGINE OIL DEPOSIT ON EXHAUST MANIFOLD RECALL NOTICE. *LD ACCORDING TO THE REPAIR INVOICE, THE MULTI-FUNCTION SWITCH WAS REPLACED. *JB”
Owner complaint to NHTSAFiled Mar 8, 2016Engine and engine cooling, Electrical systemODI 10839476

Steering

6 reports2 related recalls
“ENGINE STALLS AFTER FIRST STARTUP, THEN AFTER RESTART ALL WARNING LIGHTS BLINK FOR LONG PERIOD. VEHICLE STALLS WHEN STOPPING FOR A TRAFFIC SIGNAL OR SLOWING DOWN TO TURN. THEN, WHEN IGNITION SWITCH WAS TURNED TO OFF POSITION, COULD NOT REMOVE KEY, AND COULD NOT TURN ENGINE OFF. MECHANIC REPLACED IGNITION ELECTRICAL SWITCH, REPLACED IGNITION TUMBLER ASSEMBLY, MADE NEW KEYS. WE SPENT $1,171.01 FOR THESE REPAIRS. WROTE A LONG LETTER TO BUICK CUSTOMER ASSISTANCE CENTER ON JULY 1, 2014, AND EXPLAINED ALL THE DETAILS OF THIS IGNITION-RELATED PROBLEM. FOUND 21 SIMILAR COMPLAINTS AT SAFERCAR.GOV. GMC NEVER ISSUED A RECALL NOTICE ON THESE IGNITION-RELATED PROBLEMS, AND SAID OUR VEHICLE DID NOT HAVE CERTAIN DEFECTIVE MANUFACTURER PARTS INSTALLED AS ORIGINAL EQUIPMENT. WHO THE HELL INSTALLED THESE DEFECTIVE IGNITION-RELATED PARTS? *TR”
Owner complaint to NHTSAFiled Jul 21, 2014Steering, Electrical system, Electronic stability control (esc)ODI 10615046

Electronic stability control (esc)

5 reports
“MY 2004 BUICK REGAL LS, JUST RECENTLY STARTED TO SHUT OFF OR WON'T TURN ON, BUT AT THE SAME TIME ALL THE LIGHTS IN THE INSTRUMENTAL PANEL WOULD BE FLASHING ON AND OFF REPEATEDLY NONSTOP. AS I WOULD TURN ON MY BUICK BY TURNING THE IGNITION SWITCH, IT WOULDN'T TURN ON BUT ALSO ALL THE LIGHTS WOULD BE FLICKERING ON AND OFF RAPIDLY. I WOULD HAVE TO KEEP TURNING THE IGNITION SWITCH ON AND OFF FOR ABOUT 10-20 TIMES UNTIL FINALLY MY BUICK WOULD TURN ON. NOW WHEN I WOULD BE DRIVING IT WOULD SHUT OF BY ME PUT MY TURN SIGNAL LEFT OR RIGHT OR IT WOULD SHUT OFF BY ITSELF. AGAIN AS IT WOULD SHUT OFF ALL THE LIGHTS IN THE INSTRUMENTAL PANEL WOULD BE FLASHING ON AND OFF REPEATEDLY AND I WOULD LOOSE ACCELERATION AND POWER STEERING. SOMETIMES I WOULD BE LUCKY ENOUGH TO GET IT STARTED RIGHT AWAY, BUT IF I WAS UNLUCKY I WOULD HAVE TO PULL OVER AND TRY TO GET IT STARTED AGAIN. IT'S NOW HAPPENING SO MUCH THAT I FOUND OUT THAT I COULD SOMETIMES TURN ON MY EMERGENCY HAZARD AND IT WOULD MAKE THE LIGHTS STOP FLICKERING AND REGAIN POWER TO THE ACCELERATION AND POWER STEERING. I CAN'T BELIEVE THAT MY YEAR MAKE AND MODEL ISN'T PART OF THE GM'S RECALL FOR THE IGNITION SHUT OFF PROBLEMS.…”
Owner complaint to NHTSAFiled Aug 29, 2014Electrical system, Electronic stability control (esc)ODI 10629270

Power train

3 reports
“FROM A DEAD STOP, WHEN YOU ACCELERATE THE CAR HAS A HARD SHUDDER, TRANS SLIP...BELIEVE IT TO BE A TRANSMISSION PROBLEM AND A PROBLEM GM HAS KNOWN FOR SOMETIME WITH THEIR G4T60-E TRANSMISSION, MOST LIKELY A PRESSURE CONTROL SOLENOID PROBLEM OR CLUTCH ASSEMBLY.”
Owner complaint to NHTSAFiled Jun 10, 2019Power trainODI 11218905
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.