2003 Chevrolet Trailblazer EXT Latches, locks and linkages Problems
- Complaints
- 13about this part
- Share
- 4%of 313 total for the year
- Median mileage
- 70,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 13 complaints about the latches, locks and linkages of the 2003 Chevrolet Trailblazer EXT, 4% of the 313 complaints for this model year. Where a mileage was given, the median is 70,000 miles. 1 recall campaign on record is filed under a similar system.
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.
“Three of the four door latching mechanisms had to be replaced in this truck. The doors would look like they closed but they would open as you turned a corner. This occurred twice when I had my kids in the truck, first on the passenger left side then a few months later the passenger right side. I am glad GM didn't screw up the seal belts too. This is dangerous.”
NHTSA complaint #10257230, filed 2009-02, 70,000 miles“Purchased a 2003 chevy trailblazer-ext lt in dec 2002 from the dealer, team Chevrolet in pasadena. Since purchasing the vehicle, there's been several recalls, one in particular that keeps recurring are the brake lights keep burning, the dealer changed both units but it keeps burning out. I got tired of taking it to the dealer, so I purchased new bulbs and looked into replacing them myself. …”
NHTSA complaint #10315703, filed 2010-03, 89,500 miles“My rear passenger door opened while I was driving. The car was recalled in 2006 to supposedly fix this problem. We brought it in the spring of 2006 as per the recall. If my 9 year old daughter was not buckled in she would have fallen out of the vehicle. The recall was 05007.”
NHTSA complaint #10335683, filed 2010-06, 140,000 miles“I have a 2003 chevy trail blazer ext. I have had 4 recalls on this vehicle and was watching the local news and heard of the 5th...rear glass hatch window opens when car is in motion even tells me so on my dash. Called GM to see if there was a recall sent out , tech said nothing listed . According to the news report this info came from GM . I feel this is a serious problem and would like to have it resolved.”
NHTSA complaint #10152233, filed 2006-03, 30,000 miles“The left rear door fails to latch close. The only way I found to keep the door closed is to operate the inside door release lever many (30-80 times) and try closing the door ever so often. It appears that the door fails to latch most often when it hasn't been used for a couple weeks. I have sprayed lubricating oil/solution into the latching mechanism several times. Each time the problem will go away for about a month and then it fails to latch again. I intend on bringing the vehicle to the dealership to see if they can do anything.”
NHTSA complaint #10140307, filed 2005-10, 70,000 milesRelated recalls
- 05V494000Oct 27, 2005Certain sport utility vehicles have a rear side closure latch that may not latch or unlatch due to corrosion caused by road splash, such as water and road…Covers: Chevrolet Trailblazer EXT 2002–2003, GMC Envoy XL 2002–2003, Isuzu Ascender 2003
Latches, locks and linkages: other model years
Other parts of the 2003 Chevrolet Trailblazer EXT
89 complaintsElectrical system
77 complaintsTransmission and drivetrain
49 complaintsVisibility (wipers, defrost, mirrors)
26 complaintsExterior lighting
23 complaintsBody and structure
20 complaintsEngine cooling
16 complaintsBrakes
13 complaintsSuspension
12 complaintsOther or unknown
7 complaintsVehicle speed control
7 complaintsSteering
6 complaints
← All problems reported for the 2003 Chevrolet Trailblazer EXT
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