This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
full bulletin at NHTSA ↗2007 Chevrolet Trailblazer steering problems
severe 26 complaints filed with NHTSA · avg repair $700 · see steering across all vehicles →
Failure mileage
Complaints
26
Recalls
0
Avg fix
$700
4crashes
1fire
4injuries
What stands out
Owners have filed 26 steering complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Among the 6 model years of Chevrolet Trailblazer in our records for steering problems, this one ranks #2 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering steering on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
full bulletin at NHTSA ↗This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
full bulletin at NHTSA ↗This technical bulletin provides a procedure to eliminate a power steering noise due to extremely low temperatures.
full bulletin at NHTSA ↗This preliminary information bulletin provides information for diagnosing a power steering fluid leak at the fluid reservoir.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of the 2007 Trailblazer report early failure of front suspension and steering components across the board. Shocks wear out and leak around 33,000 miles; struts fail by 45,000 miles. Power steering systems leak from corroded lines and failed rack-and-pinion seals starting around 59,000 miles—one owner had to replace the cooler on both a 2003 and 2007 Trailblazer, suggesting a pattern.
More alarming are steering lock-up incidents. Owners describe steering wheel suddenly locking during normal driving or only turning left, requiring engine shutdown and excessive force to free. Three separate complaints detail crashes or rollovers caused by steering loss at highway speeds; one resulted in a totaled vehicle with fire, another a three-roll and driver injury. Dealers told owners "we can't duplicate this" despite the complaints.
Front-end vibration and shaking at highway speed is another recurring complaint—after 15 minutes at 55–60 mph the steering wheel and front end shake violently, sometimes for hundreds of miles intermittently, then stop. Dealers could not reproduce it.
Tie rods and wheel bearings wear prematurely. An early EBTCM electrical fault caused loss of braking and steering control in one nearly-new vehicle. Owners report paying $1,400–$2,000 for suspension and steering repairs at low to moderate mileage, with some warranty work refused due to non-dealer repairs.
Same Chevrolet Trailblazer steering reports on nearby years: 2005 · 2006 · 2008
Failure modes owners describe
Shock absorber failure and wear
Shock absorbers wear out prematurely, causing vehicle to lean, tire wobble, and uneven tire wear. Owners report all four shocks leaking and worn at relatively low mileage.
When: 33,000 miles
Symptoms owners cite: vehicle leans to one side; wobble in front tires; uneven tire wear
Repairs/costs cited: $1,400 for all four shocks, alignment, and related suspension work
Recalls/TSBs owners mention: Dealer initially said shocks were good; declined warranty assistance when repairs done outside dealer network
Steering lock-up and loss of control
Steering wheel locks or becomes stuck during normal driving, sometimes only allowing left turns, requiring vehicle shutdown and excessive force to free. Multiple incidents report loss of steering control at highway speeds leading to accidents and rollovers.
When: Various mileages; 111,000 miles (one crash); 65,000 miles (rollover); 52 mph incidents reported
Symptoms owners cite: steering wheel locks suddenly; steering wheel becomes loose; only left turns possible; requires shutdown to reset; loss of vehicle control
Codes mentioned: C0455
Repairs/costs cited: Rack and pinion replacement ($800 estimated); one vehicle totaled; airbag deployment failures noted in two accidents
Recalls/TSBs owners mention: GM stated 'faulty circuits' and 'shorted EBTCM' diagnosed; advised owner to get repairs; no recall issued despite safety complaints
Power steering fluid leaks
Power steering system develops leaks from corroded lines, high-pressure hose disconnection, and rack-and-pinion seal failure. Causes loss of power steering assist and wheel lock-up.
When: 59,000 miles; 87,000 miles; various ages
Symptoms owners cite: steering wheel makes loud noise; steering wheel locks; hard to steer; power steering fluid leak; puddles under vehicle
Repairs/costs cited: $350–$800 for power steering cooler or rack-and-pinion replacement; high-pressure hose disconnection at freezing temperatures
Recalls/TSBs owners mention: No recalls mentioned; one owner reported leak to dealer and was repaired
Power steering cooler rust perforation
Power steering cooler rusts through, causing fluid loss and steering malfunction. Owner reports same issue on 2003 Trailblazer model year, suggesting design pattern across model generations.
When: Mileage not specified
Symptoms owners cite: power steering cooler rusted through; power steering malfunction
Repairs/costs cited: $350 repair cost; part required replacement on multiple model years
Recalls/TSBs owners mention: No manufacturer response; owner suggests engineering change needed
Rack and pinion failure
Rack and pinion assembly fails with seal breach or internal wear, preventing normal steering control. Some owners report needing replacement twice.
When: 59,000–87,000 miles
Symptoms owners cite: steering becomes stiff; loss of steering control; seal failure; steering wheel spins
Repairs/costs cited: Replacement cost ~$800; one owner reports needing replacement twice
Steering column noise and wear
Steering column develops noise, particularly over bumps, suggesting strut wear or internal column wear. Dealers attribute to suspension struts needing replacement.
When: 47,000 miles
Symptoms owners cite: noise in steering column; front-end noise over bumps
Repairs/costs cited: Strut replacement estimated at ~$2,000; vehicle out of warranty
Front-end vibration and shaking at highway speeds
Front end and steering wheel shake violently while driving at highway speeds (55–60 mph), then stop without driver intervention. Shaking worsens with braking. Dealer unable to reproduce problem.
When: After approximately 15 minutes at highway speed
Symptoms owners cite: steering wheel shakes; front end vibrates; whole vehicle shakes; shaking worsens when braking
Recalls/TSBs owners mention: Dealer unable to verify problem on two service visits
Tie-rod failure and front-end wear
Tie rods wear out and require replacement. Associated with passenger-side wheel assembly noise (squeaking), possibly bearing wear, requiring further diagnosis.
When: 45,000 miles
Symptoms owners cite: tie-rod failure; passenger-side wheel squeak; possible bearing wear
Repairs/costs cited: Tie-rod replacement; further diagnosis needed for wheel-assembly squeak
Strut failure and suspension wear
Struts fail prematurely, causing front-end noise, vehicle lean, and ride quality issues. Multiple owners report needing strut replacement at 40,000–47,000 miles.
When: 40,000–47,000 miles
Symptoms owners cite: front-end noise over bumps; vehicle leans; ride deterioration
Repairs/costs cited: Strut replacement ~$2,000
Electrical short in Electronic Brake and Traction Control Module (EBTCM)
Two warning lights illuminate and vehicle loses steering and braking control momentarily. Diagnostic code indicates open sensor and shorted EBTCM. Resets after vehicle shutdown and restart.
When: Less than 1,200 miles
Symptoms owners cite: two lights on control panel; loss of steering control; loss of braking control; lights reset after shutdown and restart
Codes mentioned: C0455
Repairs/costs cited: Repair needed but owner declined until speaking with GM
Recalls/TSBs owners mention: GM advised to get repairs; stated nothing more can be done; owner refused to drive vehicle again
Power steering lines corrosion
Power steering pressure lines corrode heavily, particularly where they pass over the left wheel well. Fluid leaks from corroded joints; lines rusted excessively for vehicle age.
When: Various ages; truck is 2007 model
Symptoms owners cite: heavy rust corrosion on power steering lines; power steering fluid leak
Repairs/costs cited: Lines require replacement before failure; one owner reports $350 cooler replacement
Synthesized from 26 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Had steering trouble with your 2007 Chevrolet Trailblazer?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the steering problem on the 2007 Chevrolet Trailblazer?
It's a meaningful issue. 26 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $700.
At what mileage does the steering typically fail?
Across the 20 complaints that reported odometer mileage, most steering failures cluster between 45,000 and 111,000 miles, with the median around 70,000. A quarter of owners report trouble before 45,000; a quarter make it past 111,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $700 for steering repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to steering?
No active recalls currently cover steering issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2007/Chevrolet/Trailblazer.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.