IllustrationSERVICE LIGHT DOSE NOT COME ON WHEN MY TRUCK WON'T NOT STARTED UP UNTIL I GOT IT TOWED
2003 Chevrolet Avalanche 1500
Owner reports · Recalls · Investigations
More warning signs than most Avalanche 1500 years
Owner complaints for the 2003 Chevrolet Avalanche 1500 are substantially higher than the model-year median of 38.
About this comparison →How this year compares
Owner complaints by model year
Compare all Avalanche 1500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
70–25K
1525–50K
3650–75K
3775–100K
39100–150K
20150K+
154 reports with mileage · 28 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 84 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 28 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 24 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
5 crash reports3 fire reports2 injury reports
Unknown Or Other complaints
7 reportsI BOUGHT THIS VEHICLE AND THE CLUSTER IS OUT I DO NOT KNOW WHAT MODEL THIS IS OTHER THAN A Z66 SO I CANNOT SEE ON HOW TO PROGRAM MY PHONE AT TO THE ONSTAR OR ANY OF THAT I DON'T KNOW IF I HAVE SATELLITE RADIO THERE IS NO AUXILIARY PLUG IN HEATED SEATS IT'S ONLY THE BACK OF THE SEAT THAT WORKS I'M NOT SURE IF THAT'S ALL THAT IS H…
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I BOUGHT THIS VEHICLE AND THE CLUSTER IS OUT I DO NOT KNOW WHAT MODEL THIS IS OTHER THAN A Z66 SO I CANNOT SEE ON HOW TO PROGRAM MY PHONE AT TO THE ONSTAR OR ANY OF THAT I DON'T KNOW IF I HAVE SATELLITE RADIO THERE IS NO AUXILIARY PLUG IN HEATED SEATS IT'S ONLY THE BACK OF THE SEAT THAT WORKS I'M NOT SURE IF THAT'S ALL THAT IS HEATED AND IT SAYS THAT IT'S SUPPOSED TO BE COME WITH A KEY FOB I DID NOT RECEIVE MY CAR COMPLETELY DIES I HAVE TO TURN IT COMPLETELY OFF TURN THE KEY AROUND AND STARTED AGAIN THE WHOLE STEERING COLUMN LOOKS LIKE IT HAS BEEN REPLACED I DID NOT RECEIVE THE KEY FOB I CANNOT LOCK THE DOORS BECAUSE THE KEYS DON'T WORK IN THE DOOR BUT THEY DO AN IGNITION SOMETIMES I HAVE TO TURN THE KEY AROUND SOMETIMES EVEN WHEN I'M IN THE MIDDLE OF DRIVING I HAVE TO CUT IT COMPLETELY OFF BECAUSE IT WILL STALL OUT TURN KEY AROUND AND IT START IT AGAIN. I HAVE NO IDEA WHAT THE REAL MILAGE IS. JELP IM A SINGLE AND ONLY IN COME PARENT TO 3 BOUS AND THIS MOMMA NEEDS HELP PLEASE
I AM A NEW OWNER OF A 2003 AVALANCHE, I WAS SATISFIED WITH MY PURCHASE BUT MY SOONROOF FALLS UNDER THE APPROPRIATE SERIAL NUMBERS (6,000,000-6,300,000) RECALL STATES THAT IT MAY BE COVERED BY THE COMPANY WEBASTO HOLLANDIA. VEHICLE IS FINE TO DRIVE PLACES BUT SUNROOF MUST BE FIXED FOR COMING WINTER. IT WORRIES ME AS THERE'S A SLI…
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I AM A NEW OWNER OF A 2003 AVALANCHE, I WAS SATISFIED WITH MY PURCHASE BUT MY SOONROOF FALLS UNDER THE APPROPRIATE SERIAL NUMBERS (6,000,000-6,300,000) RECALL STATES THAT IT MAY BE COVERED BY THE COMPANY WEBASTO HOLLANDIA. VEHICLE IS FINE TO DRIVE PLACES BUT SUNROOF MUST BE FIXED FOR COMING WINTER. IT WORRIES ME AS THERE'S A SLIGHT DANGER OF IT CAUSING A ROAD HAZARD IF IT WERE TO FALL OUT.
I WAS DRIVING DOWN THE HILL ON MY WAY HOME WITH MY THREE LILLTE KIDS IN THE TRUCK WHEN IT JUST SHUT OFF N WAS HARD TO STEER THE ABS LIGHT COME ON N THEN A LIGHT WITH A LOCK WITH A KEY THE TRUCK ACTED LIKE IT WANTED TO TURN OVER BUT DID N STILL TO THIS DAY IT WILL NO TURN OVER N START UP N STILL SHOWING THE LIL LOCK WITH A KEY.
DASHBOARD IS CRACKED ABOVE THE SPEEDOMETER. I HAVE 56000 MILES ON THE VEHICLE. I OWNED A 2008 MODEL AND HAD SAME ISSUE. I THOUGHT THIS WAS ADDRESSED AND FIXED ON NEWER MODELS. I'M TOLD IT'LL COST ME $1500 TO FIX. IF THEY AREN'T GOING TO MAKE THIS GOOD I'M SWITCHING OVER TO TOYOTAS. THIS VEHICLE WAS PARKED FOR DAYS WHEN I WENT …
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DASHBOARD IS CRACKED ABOVE THE SPEEDOMETER. I HAVE 56000 MILES ON THE VEHICLE. I OWNED A 2008 MODEL AND HAD SAME ISSUE. I THOUGHT THIS WAS ADDRESSED AND FIXED ON NEWER MODELS. I'M TOLD IT'LL COST ME $1500 TO FIX. IF THEY AREN'T GOING TO MAKE THIS GOOD I'M SWITCHING OVER TO TOYOTAS. THIS VEHICLE WAS PARKED FOR DAYS WHEN I WENT TO USE IT NOTICED THE CRACK. VERY DISSAPPOINTED!
WHEN YOU HIT A BUMP THE DOOR LOCKS UNLOCK AND LOCK ABS LIGHTS COME ON SAYS REDUCED POWER YOU MAYBE GOING 55 MPH THEN WHEN YOU HIT THE BUMP YOU LOOSE POWER MAYBE BE LUCKY TO GO 5 MPH VERY VERY DANGEROUS HAVE SPENT A LOT OF MONEY TRYING TO FIGURE OUT THE PROBLEM SHOULD BE A RECALL WITH ALL THE COMPLAINTS I HAVE SEEN ONLINE ABOUT T…
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WHEN YOU HIT A BUMP THE DOOR LOCKS UNLOCK AND LOCK ABS LIGHTS COME ON SAYS REDUCED POWER YOU MAYBE GOING 55 MPH THEN WHEN YOU HIT THE BUMP YOU LOOSE POWER MAYBE BE LUCKY TO GO 5 MPH VERY VERY DANGEROUS HAVE SPENT A LOT OF MONEY TRYING TO FIGURE OUT THE PROBLEM SHOULD BE A RECALL WITH ALL THE COMPLAINTS I HAVE SEEN ONLINE ABOUT THIS PROBLEM I CAN'T DRIVE MY TRUCK AFRAID I WILL GET KILLED
DASHBOARD ABOVE RADIO CRACKED REGARDLESS IF EXCELLENT CARE IF CAR AND SUN PROTECTION. UNDER MIRROR BACK TO AIR VENTS AND SPREADING ACROSS OTHER MID SECTION. OUT OF WARRANTY. OUT OF LUCK! NOT GOOD SINCE HAVE HAD MANY OTHER VEHICLES THAT DIDN'T CRACK UNDER SAME CONDITIONS.
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1EA11001 · Brake Line Corrosion Failure
Opened Jan 5, 2011 · Closed Apr 8, 2015
Status: closed (inferred from source dates) · Service Brakes, Hydraulic; Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
Additional source detail variants (2)
Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
Service Brakes, Hydraulic
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t