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  1. #1

    Default TrailBlazer / Envoy reliability - better info (please sign up)

    I wanted more up-to-date car reliability information that included actual repair rates. So in late 2005 I started getting people together to make this possible. TrueDelta now reports absolute repair rates that make the differences between cars much clearer. Results are updated four times a year, so it's possible to track cars closely as they age.

    Over 240 GMT360 owners have already signed up to participate. A good start, but more are needed to provide full results for all years. So I'm grateful that this forum has given me permission to post this thread.

    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 TrailBlazer and Envoy, for free.

    For the details, and to sign up to help out:

    Car reliability research

  2. #2

    Default

    We've updated the results for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through September 30, 2009. In terms of repair trips per 100 cars per year:

    2006: 115, worse than average

    2004: 98, about average

    2003: 61, better than average

    2002: 17, better than average

    The sample sizes were small in all four cases, which likely explains the highly inconsistent results. With more participants, these would even out.

    Everyone who has been helping, thanks, I appreciate it. We'll have further updates in February and May. If you haven't already signed up to participate, I hope you will. With more participants we could provide full results for all model years from 1995 on.

    Chevrolet TrailBlazer reliability comparisons

    GMC Envoy reliability comparisons

    (Same information on both pages.)

  3. #3

    Default

    We've updated the results for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through December 31, 2009. In terms of repair trips per 100 cars per year:

    2006: 94, about average

    2004: 114, about average

    2003: 44, better than average

    2002: 35, better than average

    The sample sizes were small in all four cases, which likely explains the highly inconsistent results. With more participants, these would probably even out.

    A big thank you, once again, to this forum and everyone who has been helping. We'll have further updates in May and August. If you haven't already signed up to participate, I hope you will. With more participants we could provide full results for all model years from 1995 on.

    Chevrolet TrailBlazer reliability comparisons

    GMC Envoy reliability comparisons

    (Same information on both pages.)

  4. #4

    Default

    We've updated the results for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through March 31, 2010. In terms of repair trips per 100 cars per year:

    2006: 83, about average

    2005: 95, about average

    2004: 94, about average

    2003: 40, better than average

    2002: 49, better than average
    The sample sizes were small in all four cases, which likely explains the highly inconsistent results. With more participants, these would probably even out.
    A big thank you, once again, to this forum and everyone who has been helping. We'll have further updates in August and November. If you haven't already signed up to participate, I hope you will. With more participants we could provide full results for all model years from 1995 on.
    Chevrolet TrailBlazer reliability comparisons
    GMC Envoy reliability comparisons
    (Same information on both pages.)

  5. #5

    Default

    We've updated the results for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through June 30, 2010.

    Other sources of car reliability information won't cover the more recent months until the summer or even fall of next year.

    In terms of repair trips per 100 cars per year:

    2006: 72, about average

    2005: 67, about average

    2004: 54, better than average

    2003: 47, better than average

    2002: 67, better than average

    Barely reached the minimum for a full result with the 2002. Small and even very small sample sizes with the others.

    Thank you, once again, to this forum and everyone who has been helping. We'll have further updates in November and February. With more participants we could provide full results for all model years.

    To see how competitors compare, and to sign up:

    Chevrolet TrailBlazer reliability comparisons

    GMC Envoy reliability comparisons
    (Same information on both pages.)

  6. #6

    Default

    We've updated the results for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through September 30, 2010. Other sources of car reliability information won't cover the months since April until the summer or even fall of next year.

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

    2006: 52, better than average

    2005: 79, about average

    2004: 118, about average

    2003: 41, better than average

    2002: 67, better than average

    Barely reached the minimum for a full result with the 2002. Small and even very small sample sizes with the others.

    Thank you, once again, to this forum and everyone who has been helping. We'll have further updates in February and May. With more participants we could provide full results for all model years.

    To see how competitors compare, and to sign up:

    Chevrolet TrailBlazer reliability ratings and comparisons

    GMC Envoy reliability ratings and comparisons

    (Same information on both pages.)

  7. #7

    Default

    We've updated the results for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through December 31, 2010. Other sources of car reliability information won't cover the months since April until the summer or even fall of this year.

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

    2007 59, about average

    2006: 66, about average

    2005: 59, better than average

    2004: 111, about average

    2003: 61, better than average

    2002: 118, about average

    Barely reached the minimum for a full result with the 2002 and 2006. Small and even very small sample sizes with the others.

    Thank you, once again, to this forum and everyone who has been helping. We'll have further updates in May and August. With more participants we could provide full results for all model years.

    To see how competitors compare, and to sign up:

    Chevrolet TrailBlazer reliability ratings and comparisons

    GMC Envoy reliability ratings and comparisons

    (Same information on both pages.)

  8. #8

    Default

    We've updated the results for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through March 31, 2011.

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

    2007 103, worse than average

    2006: 102, about average

    2005: 92, about average

    2004: 98, about average

    2003: 92, about average

    2002: 119, about average

    Barely reached the minimum for a full result with the 2002, 2004, and 2006. Small and even very small sample sizes with the others.

    Thank you, once again, to this forum and everyone who has been helping. We'll have further updates in August and November. With more participants we could provide full results for all model years.

    To see how competitors compare, and to sign up:

    Chevrolet TrailBlazer reliability ratings and comparisons

    GMC Envoy reliability ratings and comparisons

    (Same information on both pages.)

  9. #9

    Default

    We've updated the results for the TrailBlazer, Envoy, and other GMT360s to include owner experiences through June 30, 2011.

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

    2007 100, worse than average

    2006: 100, about average

    2005: 112, about average

    2004: 131, worse than average

    2003: 99, about average

    2002: 150, worse than average

    Barely reached the minimum for full results with the 2002, 2004, and 2006. Small and even very small sample sizes with the others.

    We'll have further updates in November and February. With more participants we could provide full results for all model years.

    To see how competitors compare, and to sign up:

    Chevrolet TrailBlazer reliability ratings and comparisons

    GMC Envoy reliability ratings and comparisons

    (Same information on both pages.)

  10. #10

    Default

    We've updated the our reliability stats for the TrailBlazer, Envoy, and other GMT360s (on our redesigned site) to include owner experiences through September 30, 2011.

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

    2007 93, about average

    2006: 115, worse than average

    2005: 144, worse than average

    2004: 124, about average

    2003: 119, about average

    2002: 158, worse than average

    Small and even very small sample sizes for all but the 2004 and 2006.

    Thank you, once again, to this forum and everyone who has been helping. We'll have further updates in February and May. With more participants we could provide full our reliability stats for all model years.

    To see how competitors compare, and to sign up:

    Chevrolet TrailBlazer reliability ratings and comparisons

    GMC Envoy reliability ratings and comparisons

    (Same information on both pages.)

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