The Terrain SLT/AT4/Denali offers an optional Surround Vision to allow the driver to see objects all around the vehicle on a screen. The Trailblazer only offers a rear monitor and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the front or sides.
Both the Terrain and the Trailblazer have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, available all wheel drive, blind spot warning systems and rear cross-path warning.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the GMC Terrain is safer than the Chevrolet Trailblazer:
|
|
Terrain |
Trailblazer |
|
|
Driver |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
159 |
185 |
| Neck Injury Risk |
17% |
24% |
| Neck Compression |
10 lbs. |
15 lbs. |
|
|
Passenger |
|
| STARS |
5 Stars |
4 Stars |
| HIC |
376 |
401 |
| Neck Injury Risk |
26% |
29% |
| Neck Stress |
153 lbs. |
153 lbs. |
| Neck Compression |
51 lbs. |
82 lbs. |
| Leg Forces (l/r) |
264/236 lbs. |
409/383 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the GMC Terrain is safer than the Chevrolet Trailblazer:
|
|
Terrain |
Trailblazer |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| Chest Movement |
1.1 inches |
1.1 inches |
| Abdominal Force |
195 lbs. |
199 lbs. |
| Hip Force |
357 lbs. |
459 lbs. |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| Max Damage Depth |
13 inches |
13 inches |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

