CarBrief

The 2007 TrailBlazer has several recalls on file with NHTSA, most of them about the driver's door window switch or door module[1][2][3][4][5]. Owners filed 732 complaints, led by fuel system and electrical problems[6][7][8]., led by fuel system and electrical problems[6][7][8].

732owner complaints[6]
5recalls[1]
14–17MPG combined (EPA)[9]

Most reported problems

NHTSA lists 732 owner complaints for this model year[6]. Of those, 19 mention a crash, 56 a fire, 23 injuries and 4 deaths[6]. These are unverified reports from owners, and one complaint can name more than one part, so the groups below overlap.

The largest groups are:

We read a small sample of complaint texts in the four biggest groups. These are themes in that sample, not a measure of how common they are.

Fire counts are highest in the electrical and visibility groups, so those two groups deserve the closest look[8][11].

Recalls

Five recalls are on file for this model year[1]. Newest first:

To learn whether a specific car has open recall work, an owner would need to check its VIN with NHTSA or a dealer. Our data cannot show that.

Fuel economy

EPA lists seven versions. All are automatic 4-speed[17][18][19][20][9][21][22]. The 4.2L 6-cylinder and 5.3L 8-cylinder use regular fuel[17][9]. The 6.0L 8-cylinder uses premium[18].

Version City / hwy / combined MPG Annual fuel cost
2WD, 4.2L 6-cyl[17] 14 / 20 / 16 $4,200
4WD, 4.2L 6-cyl[19] 14 / 20 / 16 $4,200
2WD, 5.3L 8-cyl[9] 14 / 20 / 17 $3,950
4WD, 5.3L 8-cyl[21] 13 / 19 / 16 $4,200
Ext 4WD, 5.3L 8-cyl[22] 14 / 19 / 16 $4,200
2WD, 6.0L 8-cyl[18] 13 / 17 / 15 $5,500
AWD, 6.0L 8-cyl[20] 12 / 16 / 14 $5,850

The best combined rating is 17 MPG and the lowest is 14 MPG[9][20]. Annual cost uses EPA's current fuel price assumptions, not the price when the car was new[17].

Safety ratings

NHTSA gives the 4-door rear-wheel-drive and all-wheel-drive versions 4 stars for rollover, with a rollover risk of 19.1%[23]. The same rating and risk appear for the version listed as 4-DR W/SAB RWD/AWD[24]. Our data has no other crash ratings for this year.

Engine and size

The EPA ratings above list three engines: a 4.2L 6-cylinder, a 5.3L 8-cylinder and a 6.0L 8-cylinder[17][9][18]. Dimensions below are Canadian-market specifications and can differ slightly from US models[25].

Body and drive Length Width Height Wheelbase Curb weight
4-door 2WD LS/LT[25] 192 in 74 in 74 in 113 in 4,418 lb
4-door 4WD LS/LT[26] 192 in 74 in 74 in 113 in 4,594 lb
4-door SS 4WD[27] 192 in 74 in 68 in 113 in 4,729 lb
4-door SS RWD[28] 192 in 74 in 68 in 113 in 4,550 lb
EXT 2WD LS/LT[29] 208 in 75 in 77 in 129 in 4,773 lb
EXT 4WD LS/LT[30] 208 in 75 in 77 in 129 in 5,007 lb

The EXT is 16 inches longer and has a 16 inch longer wheelbase than the standard body[25][29].

How 2007 compares with other years

2002: 1,249 complaints, 13 recalls20022003: 1,214 complaints, 9 recalls20032004: 1,342 complaints, 2 recalls20042005: 1,466 complaints, 2 recalls20052006: 1,297 complaints, 8 recalls20062007: 732 complaints, 5 recalls73220072008: 193 complaints, 0 recalls20082009: 27 complaints, 0 recalls2009
Owner complaints filed with NHTSA for each TrailBlazer model year. The 2007 is highlighted[1].
Show the numbers
Model yearComplaintsRecalls
20021,24913
20031,2149
20041,3422
20051,4662
20061,2978
20077325
20081930
2009270

NHTSA's counts for each TrailBlazer model year[1]:

Year Complaints Recalls
2002 1,249 13
2003 1,214 9
2004 1,342 2
2005 1,466 2
2006 1,297 8
2007 732 5
2008 193 0
2009 27 0

The 2007 year has fewer complaints than 2002 through 2006 and more than 2008 and 2009[1]. For recalls, it has more than 2004, 2005, 2008 and 2009, and fewer than 2002, 2003 and 2006[1]. The list also shows zero complaints and recalls for 2021 through 2026[1]. Counts are not adjusted for how many were sold, so they are not a ranking of quality.

Should you buy a used 2007 TrailBlazer?

The data gives mixed signals. A major concern is the driver's door window switch module, which has several recalls and a fire risk even when parked[2][3][4][5]. Before buying, ask for proof that the recall work was done, and check the VIN with NHTSA. Owners in the fuel system sample we read describe fuel gauge trouble, and a few describe running out of fuel[7]. Fuel economy is modest, with EPA combined ratings from 14 to 17 MPG[9][20], so a pre-purchase inspection that covers the door switch, headlights and fuel gauge is a reasonable step., which has several recalls and a fire risk even when parked[2][3][4][5]. Before buying, ask for proof that the recall work was done, and check the VIN with NHTSA. Owners in the fuel system sample we read describe fuel gauge trouble, and a few describe running out of fuel[7]. Fuel economy is modest, with EPA combined ratings from 14 to 17 MPG[9][20]. A pre-purchase inspection that covers the door switch, headlights and fuel gauge is a reasonable step.

Frequently asked questions

What are the most common problems with the 2007 Chevrolet TrailBlazer?
In NHTSA complaints, the fuel system, gasoline group is largest with 215, then the electrical system with 200[7][8]. In the samples we read, owners describe fuel gauge errors, warning lights, headlights going out and driver window switch failures[7][8][10][11].
Does the 2007 TrailBlazer have recalls?
Yes, five recalls are on file[1]. Four cover the driver's door window switch module or door module, and one covers the headlamp driver module[2][16][3][4][5].
What is the gas mileage of a 2007 TrailBlazer?
EPA combined ratings run from 14 to 17 MPG depending on engine and drive[9][20]. The 2WD 5.3L 8-cylinder has the best combined rating[9].
Is the 2007 TrailBlazer a safe SUV?
NHTSA rates rollover at 4 stars with a risk of 19.1% for the versions listed[23][24]. Our data has no other crash ratings.
Is 2007 a good year for the TrailBlazer?
It has fewer complaints than 2002 through 2006 and more than 2008 and 2009[1]. Counts are not adjusted for sales, so this is not a ranking of quality.

Facts and sources

  1. Owner complaints and recalls for every Chevrolet TrailBlazer model year (chart above). NHTSA recall database
  2. Recall 15V599, filed September 24, 2015: Visibility › Power Window Devices And Controls. NHTSA recall database
  3. Recall 14V404, filed July 2, 2014: Visibility › Power Window Devices And Controls. NHTSA recall database
  4. Recall 13V248, filed June 13, 2013: Visibility › Power Window Devices And Controls. NHTSA recall database
  5. Recall 12V406, filed August 16, 2012: Visibility › Power Window Devices And Controls. NHTSA recall database
  6. NHTSA has 732 owner complaints on file for the 2007 Chevrolet TrailBlazer (19 mention a crash, 56 a fire, 23 injuries, 4 deaths reported). NHTSA vehicle records
  7. 215 complaints name the fuel system, gasoline component group (0 crashes, 2 fires, 0 injuries, median mileage at failure 53,800). NHTSA vehicle records
  8. 200 complaints name the electrical system component group (3 crashes, 39 fires, 6 injuries, median mileage at failure 76,725). NHTSA vehicle records
  9. EPA rating for TrailBlazer 2WD, 5.3L 8-cyl, Automatic 4-spd, Regular, Rear-Wheel Drive: 14 city / 20 highway / 17 combined MPG; EPA estimated annual fuel cost $3,950. EPA / DOE fueleconomy.gov
  10. 151 complaints name the exterior lighting component group (0 crashes, 2 fires, 0 injuries, median mileage at failure 113,936). NHTSA vehicle records
  11. 64 complaints name the visibility component group (1 crashes, 16 fires, 1 injuries, median mileage at failure 76,000). NHTSA vehicle records
  12. 58 complaints name the fuel/propulsion system component group (0 crashes, 1 fires, 0 injuries, median mileage at failure 82,660). NHTSA vehicle records
  13. 43 complaints name the fuel system, other component group (0 crashes, 0 fires, 0 injuries, median mileage at failure 50,000). NHTSA vehicle records
  14. 34 complaints name the engine component group (2 crashes, 3 fires, 2 injuries, median mileage at failure 89,643). NHTSA vehicle records
  15. 27 complaints name the air bags component group (14 crashes, 0 fires, 19 injuries, median mileage at failure 105,000). NHTSA vehicle records
  16. Recall 15V519, filed August 14, 2015: Exterior Lighting › Headlights. NHTSA recall database
  17. EPA rating for TrailBlazer 2WD, 4.2L 6-cyl, Automatic 4-spd, Regular, Rear-Wheel Drive: 14 city / 20 highway / 16 combined MPG; EPA estimated annual fuel cost $4,200. EPA / DOE fueleconomy.gov
  18. EPA rating for TrailBlazer 2WD, 6.0L 8-cyl, Automatic 4-spd, Premium, Rear-Wheel Drive: 13 city / 17 highway / 15 combined MPG; EPA estimated annual fuel cost $5,500. EPA / DOE fueleconomy.gov
  19. EPA rating for TrailBlazer 4WD, 4.2L 6-cyl, Automatic 4-spd, Regular, 4-Wheel or All-Wheel Drive: 14 city / 20 highway / 16 combined MPG; EPA estimated annual fuel cost $4,200. EPA / DOE fueleconomy.gov
  20. EPA rating for TrailBlazer AWD, 6.0L 8-cyl, Automatic 4-spd, Premium, 4-Wheel or All-Wheel Drive: 12 city / 16 highway / 14 combined MPG; EPA estimated annual fuel cost $5,850. EPA / DOE fueleconomy.gov
  21. EPA rating for TrailBlazer 4WD, 5.3L 8-cyl, Automatic 4-spd, Regular, 4-Wheel or All-Wheel Drive: 13 city / 19 highway / 16 combined MPG; EPA estimated annual fuel cost $4,200. EPA / DOE fueleconomy.gov
  22. EPA rating for TrailBlazer Ext 4WD, 5.3L 8-cyl, Automatic 4-spd, Regular, 4-Wheel or All-Wheel Drive: 14 city / 19 highway / 16 combined MPG; EPA estimated annual fuel cost $4,200. EPA / DOE fueleconomy.gov
  23. NHTSA 5-Star Safety Ratings, 4-DR RWD/AWD: rollover 4 stars; rollover risk 19.1%. NHTSA vehicle records
  24. NHTSA 5-Star Safety Ratings, 4-DR W/SAB RWD/AWD: rollover 4 stars; rollover risk 19.1%. NHTSA vehicle records
  25. Transport Canada specifications via NHTSA vPIC, TRAILBLAZER 4DR SUV 2WD / LS/LT: length 192 in, width 74 in, height 74 in, wheelbase 113 in, curb weight 4,418 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov
  26. Transport Canada specifications via NHTSA vPIC, TRAILBLAZER 4DR SUV 4WD / LS/LT: length 192 in, width 74 in, height 74 in, wheelbase 113 in, curb weight 4,594 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov
  27. Transport Canada specifications via NHTSA vPIC, TRAILBLAZER 4DR SUV SS 4WD: length 192 in, width 74 in, height 68 in, wheelbase 113 in, curb weight 4,729 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov
  28. Transport Canada specifications via NHTSA vPIC, TRAILBLAZER 4DR SUV SS RWD: length 192 in, width 74 in, height 68 in, wheelbase 113 in, curb weight 4,550 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov
  29. Transport Canada specifications via NHTSA vPIC, TRAILBLAZER EXT 4DR SUV 2WD / LS/LT: length 208 in, width 75 in, height 77 in, wheelbase 129 in, curb weight 4,773 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov
  30. Transport Canada specifications via NHTSA vPIC, TRAILBLAZER EXT 4DR SUV 4WD / LS/LT: length 208 in, width 75 in, height 77 in, wheelbase 129 in, curb weight 5,007 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov

Complaints submitted to NHTSA by owners; unverified reports, one complaint can name several components. Complaint counts are not normalized by sales; compare years of the same model, not different models. EPA annual fuel cost uses EPA's current fuel price assumptions, not the price when the car was new. Horsepower is the rating listed for EPA test vehicles. Dimensions are Canadian-market specifications and can differ slightly from US models.