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
Complaints by component
One complaint can cite several components
- Electrical system35
- Engine18
- Engine and engine cooling8
- Steering6
- Electronic stability control (esc)5
- Power train3
- Service brakes, hydraulic3
- Vehicle speed control2
- Suspension2
- Visibility2
- Exterior lighting1
- Service brakes1
- Fuel system, other1
- 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
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
4
1
0
1
3
0
1
1
0
14
10
20
3
3
2
2
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2004 | 1 |
| 2005 | 4 |
| 2006 | 1 |
| 2007 | 0 |
| 2008 | 1 |
| 2009 | 3 |
| 2010 | 0 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 0 |
| 2014 | 14 |
| 2015 | 10 |
| 2016 | 20 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 2 |
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.
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.”
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.”
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”
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”
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.…”
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.”
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.