GMT 360 reliability - better info

mkaresh

Original poster
Member
Dec 26, 2012
13
Got tapped on the shoulder over at another forum--was told this is where everyone was moving!

We've been closely tracking the reliability of vehicles as they age with prompt quarterly updates. Though the GMT360 is out of production, we'll keep tracking them as long as enough owners participate.

Participants simply report repairs the month after they occur on a one-page survey. When there are no repairs, they simply report an approximate odometer reading four times a year, at the end of each quarter.

To encourage participation, participants receive full access to all results, not just those for the GMT360, for free. I'll share results for the GMT360 in this thread after each update.

For the details, and to sign up to help:

Vehicle reliability research
 

mkaresh

Original poster
Member
Dec 26, 2012
13
We've updated the our reliability stats for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through December 31, 2012.

Repair frequencies, in terms of repair trips per 100 cars per year:

2008: 12, low, very small sample size

2007: 55, moderate, very small sample size

2006: 71, moderate

2005: 118, high, small sample size

2004: 81, moderate

2003: 69, low

2002: 62, low, small sample size

Thank you, everyone who has been helping. We'll have further updates in May and August. The more owners participate, the more comprehensive and precise these will be.

To see how competitors compare, and to sign up to help:

Chevrolet TrailBlazer reliability ratings and comparisons

GMC Envoy reliability ratings and comparisons

(Same information on both pages.)
 

Playsinsnow

Member
Nov 17, 2012
9,727
Can someone put the hard numbers up here without me having to join or sign in to somewhere else?
curious because my '05 has been "reliable" to me. Like to see what problems others have and what to watch for.
 

mkaresh

Original poster
Member
Dec 26, 2012
13
You can see a certain number of reported repairs without joining. We do encourage people to join to help improve the quality of the information. As noted above, we really don't have enough participants for the 2005, so the lower, better stats for the 2004 and 2006 are probably more accurate.
 

mkaresh

Original poster
Member
Dec 26, 2012
13
We've updated our reliability stats for the TrailBlazer, Envoy, and other GMT350s to include owner experiences through March 31, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2008 TrailBlazer: 13, low, very small sample size
2007 TrailBlazer: 43, low, small sample size
2006 TrailBlazer: 59, moderate
2005 TrailBlazer: 119, high, small sample size
2004 TrailBlazer: 74, moderate
2003 TrailBlazer: 59, low
2002 TrailBlazer: 42, low, small sample size

We'll have further updates in August and in November.

For the details, including the descriptions of reported repairs, and to sign up to help improve this information:

Chevrolet TrailBlazer reliability ratings and comparisons
 

mkaresh

Original poster
Member
Dec 26, 2012
13
We've updated our reliability stats for the TrailBlazer to include owner experiences through June 30, 2013. (Another source is about 14 months behind.)

Repair frequencies, in terms of repair trips per 100 cars per year:

2008 TrailBlazer: 30, low, very small sample size
2007 TrailBlazer: 54, moderate, small sample size
2006 TrailBlazer: 66, moderate, small sample size
2005 TrailBlazer: 110, high, small sample size
2004 TrailBlazer: 82, moderate, small sample size
2003 TrailBlazer: 75, moderate, small sample size
2002 TrailBlazer: 66, low, small sample size

We'll have further updates in November and February.

To view competitors' scores and descriptions of reported repairs, and to sign up to help:

Chevrolet TrailBlazer reliability ratings and comparisons
 

mkaresh

Original poster
Member
Dec 26, 2012
13
We've updated our reliability stats for the TrailBlazer to include owner experiences through September 30, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2008 TrailBlazer: 45, low, small sample size
2007 TrailBlazer: 55, moderate, small sample size
2006 TrailBlazer: 96, high, small sample size
2005 TrailBlazer: 93, moderate, small sample size
2004 TrailBlazer: 72, moderate
2003 TrailBlazer: 88, moderate, small sample size
2002 TrailBlazer: 72, low, small sample size

We'll have further updates later this month and in May. The more owners participate, the more comprehensive and precise these will be.

To see how competitors compare, and to sign up to help improve this information:

Chevrolet TrailBlazer reliability ratings and comparisons
 

mkaresh

Original poster
Member
Dec 26, 2012
13
We've updated our reliability stats for the TrailBlazer and other GMT360s to include owner experiences through December 31, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2008 TrailBlazer: 55, moderate, small sample size
2007 TrailBlazer: 62, moderate, small sample size
2006 TrailBlazer: 94, high
2005 TrailBlazer: 94, high, small sample size
2004 TrailBlazer: 70, moderate
2003 TrailBlazer: 88, moderate, small sample size
2002 TrailBlazer: 92, moderate, small sample size

We'll have further updates in May and in August. The more owners participate, the more comprehensive and precise these will be.

To see the repairs behind these stats, and to sign up to help improve this information:

Chevrolet TrailBlazer reliability ratings and comparisons


We've updated our reliability stats for the Uplander to include owner experiences through December 31, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2007 Uplander: 43, low, very small sample size
2005 Uplander: 63, moderate, very small sample size

We'll have further updates in May and in August. The more owners participate, the more comprehensive and precise these will be.

To see the repairs behind these stats, and to sign up to help improve this information:

Chevrolet Uplander reliability ratings and comparisons
 

mkaresh

Original poster
Member
Dec 26, 2012
13
Our reliability stats for the TrailBlazer now include owner experiences through March 31, 2014, making them nearly a year ahead of other sources.

Repair frequencies, in terms of repair trips per 100 cars per year:

2008 TrailBlazer: 70, moderate, small sample size
2007 TrailBlazer: 101, high, small sample size
2006 TrailBlazer: 106, high
2005 TrailBlazer: 149, high, small sample size
2004 TrailBlazer: 90, moderate
2003 TrailBlazer: 68, low
2002 TrailBlazer: 78, low, small sample size

Thank you, once again, everyone who has been helping. Next update in August.

For a deeper dive, including the stats for other cars and repair descriptions, and to sign up to help improve this information:

Chevrolet TrailBlazer reliability ratings and comparisons
 

mkaresh

Original poster
Member
Dec 26, 2012
13
We've updated our reliability stats for the TrailBlazer and other GMT360s to include owner experiences through June 30, 2014.

Repair frequencies, in terms of repair trips per 100 cars per year:

2008 TrailBlazer: 55, moderate, small sample size
2007 TrailBlazer: 65, moderate, very small sample size
2006 TrailBlazer: 84, moderate
2005 TrailBlazer: 160, high, small sample size
2004 TrailBlazer: 82, moderate, small sample size
2003 TrailBlazer: 100, moderate, small sample size
2002 TrailBlazer: 79, low, small sample size

Next updates in November and in February. The more owners participate, the more comprehensive and precise these will be.

For repair descriptions, the stats of other cars, and to sign up to help improve this information:

Chevrolet TrailBlazer reliability ratings and comparisons
 

mkaresh

Original poster
Member
Dec 26, 2012
13
We've updated our reliability stats for the TrailBlazer to include owner experiences through September 30, 2014.

Repair frequencies, in terms of repair trips per 100 cars per year:

2008 TrailBlazer: 69, moderate, small sample size
2007 TrailBlazer: 71, moderate, very small sample size
2006 TrailBlazer: 79, moderate
2005 TrailBlazer: 185, high, small sample size
2004 TrailBlazer: 78, moderate, small sample size
2003 TrailBlazer: 100, moderate, small sample size
2002 TrailBlazer: 104, moderate, small sample size

Additional participants always helpful (especially if you see "small sample size" next to the year, or no stat at all).

To view the repairs behind these numbers, check the stats for other cars, and sign up to help improve this information (next update in February):

Chevrolet TrailBlazer reliability ratings and comparisons
 

Bow_Tied

Member
Dec 21, 2014
453
London, ON
Hi,

I have been a True Delta contributor for a while and just added my recently acquired Envoy.

I noticed in signing up I wasn't able to specify I6 vs V8 engine which if lumped together could skew the reliability of one or other. Any plans to be able to specify engine? Or did I miss it in the sign up process?
 

Bow_Tied

Member
Dec 21, 2014
453
London, ON
Never mind, I found it in the "garage" area and updated it. :redface: :smile:
 

mkaresh

Original poster
Member
Dec 26, 2012
13
This information can be optionally entered when signing up. But if it's not entered it'll be requested with the first survey.

For those who haven't yet signed up, we need more participants if we're to continue covering these SUVs. More members have been selling them than buying them, reducing the sample sizes.

To help reverse this trend:

www.truedelta.com/join
 
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Reactions: Bow_Tied

mkaresh

Original poster
Member
Dec 26, 2012
13
We've updated our reliability stats for the TrailBlazer and other GMT360s to include owner experiences through the end of 2015, about eight months ahead of other sources. In terms of repair trips per 100 cars per year--lower is better:

2008 TrailBlazer: 76, moderate
2007 TrailBlazer: 64, moderate, small sample size
2006 TrailBlazer: 98, high
2005 TrailBlazer: 81, moderate, small sample size
2004 TrailBlazer: 98, moderate, small sample size
2003 TrailBlazer: 73, low, small sample size
2002 TrailBlazer: 86, moderate, small sample size

No stat, or a small sample size? Then we especially need more owners involved for that model year.

For the repairs behind these stats, reliability information on other models, and to sign up to help improve this information:

Chevrolet TrailBlazer reliability ratings and comparisons
 

HARDTRAILZ

Moderator
Nov 18, 2011
49,665
There was.
 

mkaresh

Original poster
Member
Dec 26, 2012
13
If we don't have enough stats for a model year it's because not enough owners have been participating in the survey.

If enough owners of the 2009 sign up and participate, we'll have a stat for it.

www.truedelta.com/join
 

Mooseman

Moderator
Dec 4, 2011
25,344
Ottawa, ON
Because 2009 was both the last year and the lowest production year, there will be lower stats on those.

From Wikipedia:
Yearly American sales
Calendar Year Total American sales
2001[9] 115,103
2002 249,568
2003 261,334
2004[10] 283,484
2005 244,150
2006[11] 178,493
2007 151,985
2008[12] 119,905
2009 22,287
 

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