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10.0

really awful
Crashes / Fires:
3 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
119,606 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Chevrolet Avalanche brakes problems

brakes problem

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2003 Chevrolet Avalanche Owner Comments (Page 1 of 5)

problem #83

Jul 062016

Avalanche

  • 90,000 miles

A D V E R T I S E M E N T S

Brakes went out with no warning, two different times. On a highway stopping for a red light.

- Centereach, NY, USA

problem #82

Sep 222017

Avalanche

  • 95,000 miles
Was driving home and brakes failed. Massive holes in the lines, pedal down to the floor no brake warning light until it was too late. Thank god my wife and kids were not with me this time. Lucky I'm alive. I was not on a main highway. So far the cost is up to $2000 to replace all the lines. Also now the master cylinder seems to be faulty. Another $400. I have read way tooo many complaints about GM brake lines rusting out way too soon many with low mileage. Something has to be done about this in the form of compensation. Lives could be lost and some probably have.

- Moorestown, NJ, USA

problem #81

Aug 202017

Avalanche

  • 176,000 miles
I have read NHTSA # 05V37900 and see that addresses the brake problems with brake line that I am having problems where the brake goes to the floor with no warning that is the same as the 2002 that is included in your recall. It appears that the same brake lines were used on the 2003 model. So why was the 2003 model not included in the recall as losing the brakes not a safety hazard. I was driving down the road when the brakes went out and was lucky there was no other traffic in the area.

- East Palatka, FL, USA

problem #80

Jun 082017

Avalanche

  • 79,200 miles

A D V E R T I S E M E N T S

While braking for a red stop light the truck was stopping normally and was almost stopped when the brake pedal went nearly to the floor and braking action was severely affected causing a much delayed completion to the stop. When the brake pedal collapsed a chime came on and a brake failure light appeared on the dash panel. Luckily I was able to avoid hitting the car in front of me. I was able to drive the car slowly out of traffic going very slow and using the emergency brake. Upon initial inspection, brake fluid was observed leaking from somewhere under the truck. The truck was towed to a service garage where the initial diagnosis was a rusted out brake line.

- Racine, WI, USA

problem #79

Apr 132017

Avalanche

  • 105,000 miles
The contact owns a 2003 Chevrolet Avalanche 1500. While driving 25 mph, the contact depressed the brake pedal and noticed that there was no brake functionality. The contact was able to coast the vehicle to the nearest fuel station. The brake warning indicator illuminated when the failure occurred. The vehicle was taken to an independent mechanic who diagnosed that the front brake line failed due to corrosion and the rear brake line also experienced severe corrosion and needed to be replaced. The vehicle was repaired. The dealer and manufacturer were notified of the failure. The failure mileage was approximately 105,000.

- Cherry Hill, NJ, USA

problem #78

Aug 172016

Avalanche

  • 125,623 miles
Lost total braking at red light at busy intersection,45 mph with the grace of god avoided a broadside hit, just missed a child on a bike, this was caused by a rusted brake line. What happen to the safety back-up in this design ? this is wrong. In so many ways. In the usa we need to hold our safety to its highest. How many will die before this problem is resolved.

- Columbus, OH, USA

problem #77

Jun 272016

Avalanche

  • 179,000 miles

A D V E R T I S E M E N T S

I lost the complete hydraulic braking system due to a line(s) burst due to rust. Thankfully I was just coming out of a parking lot so I was not going fast. My foot immediately went to the floor, the warning sound and indicator came on, but I had absolutely no brakes other than the emergency brake, which I used to pull over. It goes to the shop on Tuesday so I will know then the extent of the damage. Had I been going 30 or 40 and coming to a crowed intersection, someone surely would have been hurt, there would have been absolutely no way for me to stop in time. I had no pre-warning of an issue, no low fluid indications, no brake warning lights, just my foot going to the floor. Pretty scary.

- Amity Harbor, NY, USA

problem #76

Apr 162016

Avalanche

  • 222,000 miles
Sitting at a stop light the brakes failed. Holding the brake while waiting for the light to change, the pedal all of a sudden went to the floor. When I began moving I had to keep the truck below 30 mph to allow the brakes to work with increased stopping distance factored in. After about a 5 mile drive home, checked the brakes and noticed a leak from rusted brake lines near the driver's door. Truck cannot be safely driven until rusted lines are replaced. No ability to make a regular stop much less an emergency stop in the present condition.

- Bel Air, MD, USA

problem #75

Mar 262016

Avalanche

  • 170,000 miles
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 until it could be inspected and found a leak under driver side front door. All of the main brake pipes were rusted and fragile. Taking truck to dealership to have all brake pipes replaced with kit mentioned in (tsb) 13-05-22-001. I am very disappointed that GM is fighting a recall by sighting the fact that there are two different brake systems and it is not a safety issue. What if the rusted brake lines for both systems failed. At the very least it seems that having your stopping distance increase by almost double with out warning is a safety issue.

- Westerville, OH, USA

problem #74

Nov 212015

Avalanche

  • 130,000 miles
Driving 50mph coming up to a red light with cross traffic attempted to stop and peddle went down to the floor. Narrowly missed a possibly deadly accident. Found that the front brake line had rusted through. Very surprised since there is very little rust on the underside of this truck. It would have been nice to have known about this potential issue.

- Grand Rapids, MI, USA

problem #73

Sep 172015

Avalanche

  • 144,937 miles

A D V E R T I S E M E N T S

While driving my 2003 Chevy Avalanche to work during rush hour traffic, another driver hit their brakes abruptly in front of me. This happens often during rush hour traffic in the morning in columbus, oh. I hit my brakes and they went to the floor! after I pumped them a few quick time, I ran the truck off the road while looking for any additional safe exit strategies. I down shifted, and had a very small amount of brake approximately 1/2" of usable pedal just above the floor board. I have read about the brake line problems, and have been fixing things on the truck since I got it. My wife's Toyota rav4 is 1 year newer (2004) and the underside of her car glistens compared to our Chevy Avalanche. The kicker: She drives her rav4 every weekday even during snowy weather, and I drive the Avalanche only once a week! I own another vehicle (1997 Buick) I usually drive. The under side of the Avalanche is the epitome of rust - not just the brake lines but everywhere! when did brake lines become a wear part" I am pleading to your humane treatment of people over profit. This is exactly what this is; GM took extreme shortcuts, all parts under the truck are rusting badly more than any vehicle I have seen in my life. This isn't a northeast or snow belt problem, this is a GM problem. Will you please prevent this travesty from continuing before more people die unnecessarily? split braking systems were made a requirement, and GM is hiding behind that requirement. Was that the NHTSA intent to permit higher profits with the split braking systems? that is what GM is using it for and at the expense of peoples lives. Which is more important profit or lives" have a nice day!

- Circleville, OH, USA

problem #72

Aug 292015

Avalanche

  • 55,000 miles
Primary master cylinder brake line burst lost brakes.

- Brookston, IN, USA

problem #71

Jul 292015

Avalanche

  • 179,000 miles
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.

- Cape Carteret, NC, USA

problem #70

Jun 032013

Avalanche

  • 150,000 miles
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 replaced on the vehicle due to rusting and corrosion. The manufacturer was not notified of the failure. The VIN was not available. The failure mileage was 150,000.

- Greene, NY, USA

problem #69

May 172015

Avalanche

  • 186,034 miles
Towing a small landscape trailer, pushed brakes, pedal goes low. Got home, entire frame on drivers side soaked with brake fluid. Had my 2 girls in the car. Not happy. I have never had a car have the brake line rust out before.

- Westminster, MA, USA

problem #68

Apr 262015

Avalanche 4WD 8-cyl

  • 100,000 miles
2003 2500 Avalanche brake lines heavily rusted deep pits below driver seat and along left frame rail will replace.

- Allentown, PA, USA

problem #67

Jan 092015

Avalanche 4WD 8-cyl

  • 110,000 miles
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 discovered upon inspection that the brake lines were excessively corroded compared with other body and engine components. Metal composition of brake tubing seems very prone to corrosion. Complete brake line replacement of the entire system is now necessary.

- Inman, SC, USA

problem #66

Feb 242015

Avalanche 4WD 8-cyl

  • 96,522 miles
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 through the intersection (which did have traffic). I had zero braking power whatsoever. I tried pushing down the emergency brake and it had no effect ( I later found that the emergency brake lines were frozen in a large chunk of ice near the drivers side rear wheel and would not move). The pickup bed drains down onto the lower frame in this area and that accounted for the ice buildup. I continued through the shopping center parking lot and all I could to was downshift to slow myself down. Lucky again...the parking lot was nearly empty and very long. After about 4-500 ft I was going slow enough that I was able to jam the transmission into park. There was no warning of this failure. The lines were not leaking. I have now read online that GM has had many complaints of rusted lines on their pickups suddenly failing. This could have been a life threatening situation. Brake lines should not suddenly fail. They should last the life of the vehicle. Non-corrosive nickle copper brake lines exist that do not rust. These should be mandatory on all vehicles.

- North Royalton, OH, USA

problem #65

Oct 152014

Avalanche

  • 119,400 miles
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.

- Cape Coral, FL, USA

problem #64

Oct 152014

Avalanche

  • 150,000 miles
The contact owns a 2003 Chevrolet Avalanche 1500. The contact stated while driving approximately 40 mph attempting to applied the brakes, the front drivers side brake line fractured. The contact repaired the brake line independently. However, the failure recurred on the rear drivers side brake line. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 150,000.

- Tuiahcui, OH, USA

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