2003 Chevrolet Suburban 2500 Transmission and drivetrain Problems
- Complaints
- 2about this part
- Share
- 10%of 21 total for the year
- Median mileage
- 102,123miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the transmission and drivetrain of the 2003 Chevrolet Suburban 2500, 10% of the 21 complaints for this model year. Where a mileage was given, the median is 102,123 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“One of the metal brake lines between the master cylinder and the ABS modulator valve ruptured during a stop due to corrosion. All brake lines in the vehicle have similar levels of corrosion near the area the aforementioned line ruptured, and at various other locations on the vehicle. The transmission cooler lines had failed approximately 18 months previously due to corrosion. The corrosion and rust on many components beneath the vehicle and in the engine compartment is becoming rather concerning.”
NHTSA complaint #10629913, filed 2014-09, 137,096 miles“Without prior warning, the transfer case started switching from 2 hi to 4 hi and 2 lo at highway speeds and by itself. This is extremely dangerous as it can result is a sudden lost of control.”
NHTSA complaint #10169167, filed 2006-09, 67,150 milesRelated service bulletins
- 11006421Jul 24, 2024GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10222770Sep 16, 2022This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
- 10220319Sep 1, 2022This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the…
- 10201098Dec 1, 2015OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- 10190503Dec 1, 2015OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- 10025462Apr 1, 2008Diagnostic information on mn8, mt1 ses/mil illuminated, dtc p0757, harsh shift, delayed 2-3 shift, 2-3 shift flare, no third gear, slips in third gear or reverse.
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 2 | 10% |
| 2000 | 1 | 14% |
Other parts of the 2003 Chevrolet Suburban 2500
14 complaintsElectrical system
3 complaintsFuel system
2 complaintsEngine
1 complaintsEngine cooling
1 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2003 Chevrolet Suburban 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology