Which parts fail
Components named in complaints (service brakes, ABS, rotors and pads, parking brake).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2003 Chevrolet Suburban 1500 owners, lightly cleaned up (personal details are redacted by NHTSA).
Tl* the contact owns a 2003 Chevrolet Suburban 1500. While driving approximately 35 MPH, the vehicle failed to stop when the brake pedal was depressed. As a result, the vehicle crashed into a curb. The vehicle was towed to an independent mechanic for diagnostic testing. The contact was advised that the brake line needed to be replaced. The vehicle was not repaired. A police report was not filed and there were no injuries. The manufacturer was notified of the failure. The approximate failure mileage was 100,000.
10/11/2 brakes failed plus parking brake failed and parking brake shoe assembly was not found upon dealer inspection. Replaced disc brakes and had parking brake shoe installed. 11/09/12 check engine light revealed ignition problem. New ignition wire set installed. 01/29/13 dash cluster failed, had no horn, no headlights, no interior lights, no speed control , no steering wheel lights for control buttons, no speedometer reading, no radio. Replaced dash cluster. 05/05/14 check engine light and stranded when vehicle would not start. Misfire messages on dealer equipment reading. 06/16/14 stranded again , vehicle would not start. Replaced ignition switch. 07/15/14 stranded again , vehicle would not start. Replaced starter relay. 02/16/15 driver heated seat coming on/off while driving on its own. 4 wd engaged on its own while driving and made driving uncontrolled. …
While driving my 2003 Suburban I was approaching a stop sign and attempted to brake. The brake pedal suddenly went to the floor with no braking action. As the truck continued through the stop sign (thank goodness no other car was crossing) I attempted to engage the emergency break which failed to slow down or stop as well. I then intentionally turned to truck over a curb into a grassy area as to stop the vehicle prior to rolling down the hill into highway traffic. Upon examining under the truck I discovered an area under a clamp leaking brake fluid. It appears that it had corroded through.
Tl* the contact owns a 2003 Chevrolet Suburban 1500. The contact stated that when the brake pedal was applied, the brake pedal traveled to the floorboard and the brake warning light illuminated. The emergency brake was applied in order to stop the vehicle. The vehicle was towed to an independent mechanic where the brake lines were replaced on two occasions but the failure recurred. The vehicle was towed back to the independent mechanic but was not diagnosed or repaired. The VIN was not available. The manufacturer was notified of the failure. The approximate failure mileage was 72,000.
Corroded brake lines on 2003 Chevrolet Suburban caused a front end crash when brake line burst at corrosion. I was lucky to have had a snow bank in my path and not another car. I applied the brakes coming to a stop light when the brake pedal went to the floor. Myself and my wife went through the red light, unable to stop, with no traffic coming from the cross street, luckily. I was able to get home slowly and found the brake line corroded and brake fluid squirting from the brake when pressure applied upon inspection.
Tl* the contact owns a 2003 Chevrolet Suburban 1500. The contact stated that while driving 20 MPH, he applied the brakes at an intersection but the vehicle did not stop and crashed into a curb. The vehicle was towed to a dealer for diagnosis and the contact was informed that all of the brake lines and the front calipers would need to be replaced due to severe corrosion. The manufacturer was notified of the failure. The vehicle was not repaired. The failure and current mileage was 80,000.
A complete loss of braking ability, ruptured brake lines. Lines between proportioning valve and ABS pump ruptured and failed completely. Lines rusted and failed. No accident and no injuries. My wife was driving, vehicle was operated in reverse {backing up}, she then shifted to forward, brakes failed, pedal went to floor, and rolled from a parking lot into a highway, fortunately no other traffic was present.
Brake lines rusting. Twice in a month the brakes failed after a hard stop at a traffic light. Lucky for me & others there were no cars in front of me or trying to cross the intersection. After applying the brake hard to stop, the brake pedal continued all the way to the floor and the car did not stop. The mechanic told me that the brake lines rusted and therefore the brake fluid leaked out of the system
Without warning brake line blew a hole and no brakes. No warning and total loss of brakes. Service brake system light came on. No help with that. Fortunately I was able to pass on right shoulder threw the grass. Almost a three vehicle accident. Need to have this problem addressed and taken care of. People could have easily been injured or killed.
I just started leasing the vehicle from quality auto that says that the car is road ready but have lots of hazardous things to it a very bad gas leak that there taking there time to fix and my hood of my car won't stay down ...it's 7 days into my car lease and there promises have been broken and won't trade me another car .
Brake complaints in other Suburban 1500 years
Frequently asked questions
How common are brake problems on the 2003 Chevrolet Suburban 1500?
NHTSA has 65 complaints about the brakes of the 2003 Chevrolet Suburban 1500, 37% of the model year's 175 complaints. The component named most often is disc › rotor (1 mentions).
Is there a recall for 2003 Chevrolet Suburban 1500 brake problems?
No. NHTSA lists no brakes recall for the 2003 Chevrolet Suburban 1500. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2003 Chevrolet Suburban 1500 brake problems start?
Half of the complaints with a recorded mileage happened before about 103,000 miles, and 2% before 25,000 miles.
Is it dangerous?
Owners linked 4 crashes, 0 fires and 0 injuries to brakes problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.