Avalanche (2004)
Reliability Score
Complaints by Engine Code
LM7 Iron
5.3L 8-cylView details
Complaint Breakdown
Chevrolet Avalanche Unidentified Engine
View details
Complaint Breakdown
L18
8.1L 8-cylView details
Complaint Breakdown
Show 3 additional engine variants with limited data
LM7
5.3L 8-cylView details
Complaint Breakdown
L59
5.3L 8-cylView details
Complaint Breakdown
LR4
4.8L 8-cylView details
Complaint Breakdown
Owner Complaints by System
Complaints owners filed with NHTSA about the Chevrolet Avalanche, counted across every engine. A complaint can name more than one system.
What to check on a used 2004 Chevrolet Avalanche
On a used 2004 Chevrolet Avalanche, the systems with the most NHTSA owner complaints are the electrical system (115), the brakes (88) and the airbags and driver-assist systems (21). Each one has an inspection step below, with counts as of 2026-10-12. A complaint is an owner report, not a confirmed defect, and counts rise with sales.
- Switch on every electrical item in turn: lights, windows, locks, wipers, climate fan, screen and power outlets.Costly repair. NHTSA has 115 owner complaints on the 2004 Chevrolet Avalanche about the electrical system.
- On an empty road, brake firmly from 40 mph with a light grip on the wheel.Safety. NHTSA has 88 owner complaints on the 2004 Chevrolet Avalanche about the brakes.
- Switch the ignition on and watch the airbag light. On the drive, check the backup camera and any collision or lane warning.Safety. NHTSA has 21 owner complaints on the 2004 Chevrolet Avalanche about the airbags and driver-assist systems.
- Turn the wheel from lock to lock while parked, then drive straight on a level road with a light grip.Safety. NHTSA has 20 owner complaints on the 2004 Chevrolet Avalanche about the steering.
- Accelerate gently through every gear, then once at full throttle. Shift into Reverse and back to Drive.Costly repair. NHTSA has 19 owner complaints on the 2004 Chevrolet Avalanche about the transmission and drivetrain, all engines combined.
Recalls (6)
ON CERTAIN TRUCKS EQUIPPED WITH AN 8.1L V8 (RPO L8-VIN G) ENGINE HAVE A CONDITION IN WHICH THE ENGINE FUEL RAIL PULSE DAMPER RETAINER CLIP MAY FRACTURE RESULTING IN INADEQUATE RETENTION OF THE DAMPER.
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.
ON CERTAIN CREW CAB PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE 2ND ROW CENTER OCCUPANT SEAT BELT ROUTING MAY MAKE IT DIFFICULT TO POSITION THE LAP PORTION OF THE SAFETY BELT LOW AROUND THE HIPS OF OCCUPANTS, ESPECIALLY SMALLER OCCUPANTS, SEATED IN THIS POSITION. APPROPRIATE USE OF A CHILD SEAT OR BOOSTER SEAT, AS RECOMMENDED FOR SMALL CHILDREN, DOES IMPROVE THE FIT CONDITION FOR THIS USER GROUP. IN ADDITION TO INSTRUCTIONS ON PROPER INFANT AND YOUNG CHILD RESTRAINT (WITH CHILD SEATS OR BOOSTERS), SPECIAL VERBIAGE FOR RESTRAINING OLDER CHILD IS INCLUDED IN THE OWNER'S MANUAL. ALSO, THE SUGGESTED SEAT BELT FIT/ROUTING FOR ADULTS, IRRESPECTIVE OF SEATING POSITION, IS DESCRIBED IN THE OWNER'S MANUAL TEXT.
CERTAIN TRUCKS, SPORT UTILITY VEHICLES, AND VANS EQUIPPED WITH BOSCH HYDRO-BOOST BRAKE ASSEMBLIES, THE HYDRAULIC BRAKE BOOSTER PRESSURE ACCUMULATOR MAY CRACK AND SEPARATE FROM THE HYDRO-BOOST ASSEMBLY DURING NORMAL OPERATING CONDITIONS.
ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE GALVANIZED STEEL TAILGATE SUPPORT CABLES THAT RETAIN THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION MAY CORRODE, WEAKEN, AND EVENTUALLY FRACTURE. IF BOTH CABLES FRACTURED, THE TAILGATE WOULD SUDDENLY DROP AND STRIKE THE TOP SURFACE OF THE REAR BUMPER.
Show 1 older recall
CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, ?PASSENGER CAR BRAKE SYSTEMS.? SOME OF THESE VEHICLES WERE PRODUCED WITH AN OUT-OF-SPECIFICATION BRAKE HYDRO-BOOST HOUSING RELIEF VALVE BORE.
Alternatives in Compact Sedan
Frequently Asked Questions
What are the most common 2004-2004 Chevrolet Avalanche complaints?
Owners have filed 319 complaints with NHTSA about the 2004-2004 Chevrolet Avalanche. The systems they name most often are the electrical system, the brakes and the safety systems.
Is the 2004-2004 Chevrolet Avalanche a good used car?
That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 319 complaints with NHTSA about the 2004-2004 Chevrolet Avalanche. Check which systems they name most often and whether a recall is still open on that car.
How many NHTSA complaints does the 2004-2004 Chevrolet Avalanche have?
NHTSA has 319 owner complaints on file for the 2004-2004 Chevrolet Avalanche as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.
What recalls affect the 2004-2004 Chevrolet Avalanche?
NHTSA lists 6 recalls covering some 2004-2004 Chevrolet Avalanche vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.
What should I check before buying a used Chevrolet Avalanche?
Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the electrical system, the brakes and the safety systems, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.
Does the Avalanche have NHTSA crash test ratings?
NHTSA has not published crash test ratings for the 2004 Chevrolet Avalanche. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.
Data from NHTSA federal complaints database. 319 complaints analyzed. Data confidence: high. Last updated: 2026-10-12.