NHTSA lists 7 safety recalls and 230 owner complaints for the 2004 Chevrolet Monte Carlo. Most complaints involve electrical system (151) and engine (23). The EPA rates it 20–22 mpg combined.
General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.
General Motors LLC (GM) notified the agency on April 2, 2015, that they are is recalling certain model year 2004 Buick Regal vehicles manufactured April 9, 2003, to June 1, 2003, 2004 Chevrolet Impala vehicles manufactured April 8, 2003, to June 23, 2003, and 2004 Chevrolet Monte Carlo vehicles manufactured April 7, 2003, to June 23, 2003. On May 18, 2015, GM expanded the recall to cover an additional 49,751 2004 Pontiac Grand Prix vehicles manufactured January 6, 2003, to June 25, 2004. In the affected vehicles, the valve cover gasket may leak.
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on July 3, 2014, that they are recalling 5,877,718 model year 2000-2005 Chevrolet Impala and Monte Carlo, 1997-2003 Chevrolet Malibu, 2004-2005 Malibu Classic, 1999-2004 Oldsmobile Alero, 1998-2002 Oldsmobile Intrigue, 1999-2005 Pontiac Grand Am and 2004-2008 Pontiac Grand Prix vehicles. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“TL* THE CONTACT OWNS A 2004 CHEVROLET MONTE CARLO. WHILE DRIVING 15 MPH, THE VEHICLE STARTED TO SHUDDER AND SMOKE APPEARED UNDER THE HOOD. IN ADDITION, THE VEHICLE'S BATTERY EXPLODED. A FIRE REPORT WAS FILED. THE LOCAL FIRE DEPARTMENT EXTINGUISHED THE FIRE. THERE WERE NO INJURIES SUSTAINED. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS NOT TAKEN TO A DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 49,000. THE VIN WAS NOT AVAILABLE. *TR”
“I took my car into Freeland Chevrolet for the recall my car was running great,when i picked it up it was idling rough and smoking on my way home it was stalling out at every stop causing me to loose control of power steering and braking creating a safty haszard called them the next day and told them about it which they already knew because the manager was outside when i started it up. They said it was thowing 11codes when i brought it in saying that was the problem,which i could not have drove it their in that condition and never would.got in touch with corp office. In the mean time I had it towed back to them on DEC1,,,.Because its undrivable. Then on Dec11 got a call from corporate say i had to pay 253.00 for a Diagnostic also they told them it was throwing 21 codes when i brought it in.whats the Truth? they endangerd many lives by letting me drive that car off the lot.That tells me they have no regard for the safety of the public. my car is still there”
“POWER STEERING HIGH PRESSURE LINE MAY FAIL PREMATURELY OF THE 20,000-24,000 MILE SERVICE REPLACEMENT. HAD TO REPLACE THIS MULTIPLE TIMES AND IT'S LEAKING AGAIN FROM THE HOSE.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Monte Carlo Auto 4-spd, 6 cyl, 3.4 L · Front-Wheel Drive | 19 | 29 | 22 | $2,850 | 404 |
| Monte Carlo Auto 4-spd, 6 cyl, 3.8 L · Front-Wheel Drive | 18 | 28 | 21 | $2,950 | 423 |
| Monte Carlo Auto 4-spd, 6 cyl, 3.8 L, Sup Charg · Front-Wheel Drive | 16 | 26 | 20 | $3,850 | 444 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
7 safety recalls as of Nov 9, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 230 complaints with NHTSA. The most-cited components are electrical system (151), engine (23), steering (16). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2004 Chevrolet Monte Carlo at 20–22 mpg combined, depending on engine and drivetrain (3 versions rated).