2003 Chevrolet Avalanche problems, complaints & recalls
Most-reported problem areas: Service Brakes (49) · Electrical System: Instrument Cluster/Panel (19) · Service Brakes, Hydraulic (15)
🧭 Reliability snapshot
Compared against other Chevrolet Avalanche model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
159 NHTSA complaints that reported an odometer reading.
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (349)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Equipment:other:owners/Service/Other Manual 2016-03-01 · PIT5484A · Service Bulletin/Repair Instructions
this preliminary information communication advises the technician that if onstar is unable to configure the vehicle after the onstar 15-08-44-001 upgrade and onstar receives a 118 error code when attempting to configure the vehicle. dealers should receive a sheet with the kit that provides steps to
Equipment:electrical 2016-02-23 · PIC5953A · Service Bulletin/Repair Instructions
this preliminary information communication provides information to the technician about vehicles that may have an issue when using bluetooth voice recognition with an iphone. technician should work with the customer to insure the phone contacts to not have any emojis loaded to any contact.
Equipment 2016-02-11 · PIP5226A · Service Bulletin/Repair Instructions
this preliminary information communication provides information to the technician about finding needle bearings during an oil change. technician will gain access to the roller rockers to inspect them. only replace the roller rocker that is missing needle bearings. be sure to clean the oil drains to
Equipment:electrical:navigational System(Global Positioning System) 2016-01-27 · 03-08-46-004R · Service Bulletin/Repair Instructions
this informational bulletin provides information on part restriction and ordering process information for onstar vehicle communication interface modules (vcim) (gmna only)
Engine And Engine Cooling:exhaust System:emission Control:catalytic Convertor 2015-11-30 · PIP5232B · Service Bulletin/Repair Instructions
this preliminary information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. it is recommended to inspect for a poor crimp on the grounds ring terminal at the engi
Seat Belts:front:buckle Assembly 2015-08-03 · 09-09-40-001C · Service Bulletin/Repair Instructions
this informational bulletin provides information to advise dealers about seat belt buckles not operating and/or seat belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle release button sticking.
Showing the 6 most recent of 349 bulletins. Search all of them free at nhtsa.gov.
What owners report
2016-04-14 · Service Brakes · 170,000 mi“my 17 year old son was on the freeway and the brake pedal travelled all the way to the floor while attempting to stop. the service brake system light came on at the same time. stopping distance was increased dramatically, by at least double. if there would have been a curve or car in front of him there would have been an accident. parked the truck …”
2016-02-19 · Exterior Lighting · 70,000 mi“tl* the contact owns a 2003 chevrolet avalanche. while driving approximately 65 mph, the instrument panel failed. in addition, the driver side headlight failed. the failure recurred numerous times. the vehicle was taken to an independent mechanic where it was diagnosed that the instrument panel needed to be replaced. the vehicle was not repaired. t…”
2015-08-07 · Service Brakes · 179,000 mi“brake line failure: i had a ruptured steel break line failure while applying normal breaking pressure on the pedal. after further inspection of break lines, i found all break lines were rusted and in danger of also rupture. …”
2015-06-17 · Steering · 181,062 mi“the other day i started noticing that when i turn right (or left in reverse) at a low rate of speed the vehicle makes a clunking noise and my steering is affected. i started looking online for a remedy to this problem and found that several people had the same problem and did not know where to report it. i don't feel it is fair that as the consum…”
2015-06-05 · Service Brakes · 150,000 mi“tl* the contact owns a 2003 chevrolet avalanche. while driving at an unknown speed, the brake pedal extended to the floor when it was depressed. the contact discovered that the brake lines near the driver side door were rusted and corroded, and brake fluid had leaked from the vehicle. the contact indicated that the brake lines had been previously r…”
2015-03-24 · Service Brakes, Hydraulic:pedals And Linkages · 115,000 mi“tl* the contact owns a 2003 chevrolet avalanche.while at a traffic light, the contact could not depress the brake pedal. the vehicle was not diagnosed or repaired. the manufacturer was not notified of the failure. the vin was not available. the approximate failure mileage was 115,000. …”
2015-02-28 · Service Brakes · 110,000 mi“vehicle experienced complete brake failure upon slowing for a traffic light. this was compounded by the downhill orientation of the road surface. left roadway to avoid collision with tractor-trailer. there was no warning or indication of an impending brake failure. no indication that any part of the braking system was still functioning. it was …”
2015-02-25 · Service Brakes · 96,522 mi“the rear brake line burst catastrophically and my brake pedal went to the floor. i was coming up to stopped cars at an intersection and had to swerve into the oncoming lane to avoid rear ending another truck. luckily there were no cars in the lane at the time. i then had to make a sharp turn into a shopping center parking lot to avoid running thro…”
2015-01-27 · Service Brakes · 119,400 mi“it started with the airbag light, but nobody will own up to fixing it, as we moved from pa to fl. then the brake lines went, all of them, now with the airbag issue the pcm is sending all kinds of stupid codes like the airbag issue is affecting the whole electrical system in the truck. *tr…”
2015-01-26 · Seats · 💥 crash“tl* the contact owns a 2003 chevrolet avalanche 1500. the contact stated while driving approximately 5 mph, the drivers seat reclined independently, which caused the contact to crash with another vehicle. a police report was filed. the vehicle was not diagnosed or repaired. the manufacturer was not notified of the failure. the approximate failure m…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.