2005 Chevrolet Trailblazer EXT 370 Vehicle speed control Problems
- Complaints
- 8about this part
- Share
- 3%of 237 total for the year
- Median mileage
- 110,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the vehicle speed control of the 2005 Chevrolet Trailblazer EXT 370, 3% of the 237 complaints for this model year. Where a mileage was given, the median is 110,000 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.
“2005 Chevrolet trailblazer.....speedometer works improperly while driving. I will be driving at a rate of 60 MPH and all of a sudden the speedometer jumps to 95+ MPH and when I turned off the motor the speedometer will not go back to zero and will sit on 20 or 30 MPH instead of zero. This has been happening for over a year. Please help.......”
NHTSA complaint #10306912, filed 2010-02, 45,000 miles“Speedometer on 2005 trailblazer is misleading. You can be doing 70mph and it will only register 50 MPH. Sometimes you can be doing 20 MPH and it will register 120 MPH. But 80% of the time the speedometer is correct (I think). This can be dangerous, especially to new drivers (my daughter who just turned 16). Gm is providing misleading information to the driver and you have no indication that it is incorrect.”
NHTSA complaint #10373748, filed 2011-01, 110,000 miles“My 2005 chevy trailblazer keeps losing power to the accelerator pedal,I took it to the dealer they had it for 2 days they replaced acc pedal sensor I took car home and the problem occurred again same day. It cost me 442 dollars to repair and I have to go back to dealer tomorrow what are my rights in this case can they charge me again to fix the same problem.”
NHTSA complaint #10235824, filed 2008-07, 59,048 miles“I have a 2005 Chevrolet trailblazer ext lt the speedometer went haywire it was fine then on the highway I was all of a sudden doing 110 miles per hour I thought whats going on so I stopped along highway fully stopped my speedometer read 85 MPH I knew the speed was off cause me speed on my GPS said I was doing 55 MPH when the speedometer said 110 MPH Chevrolet should fix this problem cause it is a safety hazard cause I am not able to correctly judge my speed please look in to this I am not the only one having this problem there are thousands on thousands of people complaining of this problem…”
NHTSA complaint #10307286, filed 2010-02, 135,000 miles“Electrical issues:vehicle dashboard lights will show door gate open, doom lights wil be on, ringing bell when the door would be open and yet its actually closed, as all continues to go at any given time when the vehicle is in movement. Speed odometer gage doesn't read when vehicle is in movement and the gas gage doesn't read the correct level of showing how much gas is in vehicle. This is a big safety issues cause it has me worried of not knowing how much gas I have before it runs out of gas risking myself and others because vehicle all of a suddenness loses speed and shuts down.”
NHTSA complaint #10788846, filed 2015-11Vehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2005 | 8 | 3% |
Other parts of the 2005 Chevrolet Trailblazer EXT 370
101 complaintsFuel system
94 complaintsExterior lighting
15 complaintsVisibility (wipers, defrost, mirrors)
12 complaintsEngine cooling
10 complaintsAir bags
7 complaintsBody and structure
6 complaintsTires
5 complaintsTransmission and drivetrain
5 complaintsEngine
4 complaintsEquipment
4 complaintsLatches, locks and linkages
4 complaints
← All problems reported for the 2005 Chevrolet Trailblazer EXT 370
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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