Vehicle Reliability Survey Results
These are the first official results from TrueDelta's Vehicle Reliability Survey (description of the research process).
At this early stage, sample sizes and the number of models are small. However, results will be updated every three months, and each time both will grow (list of models in the pipeline). As they grow, TrueDelta will report more detailed results in a more user-friendly format.
Members can log in to see results for 14 additional models on which 10 to 17 owners responded.
Not a member yet? Read about TrueDelta's research and how to participate by clicking here.
Important: TrueDelta grants limited rights to republish the following results. The results for a maximum of three models can be included in an article or thread without our written permission.
| Vehicle Reliability Survey Results: year ending September 2006 | |||||||
|---|---|---|---|---|---|---|---|
| Year | Make | Model | Vehicles | Months | Mo/Veh | Avg. Reading | Trips/Year |
| 2005 | Acura | TL | 25 | 196 | 7.8 | 10832 | 0.2 |
| 2006 | BMW | 3-Series | 20 | 106 | 5.3 | 9868 | 0.3 |
| 2006 | Chevrolet | HHR | 18 | 91 | 5.1 | 13736 | 1.1 |
| 2006 | Chrysler / Dodge | 300 / Charger / Magnum | 46 | 206 | 4.5 | 8869 | 1.1 |
| 2005 | Chrysler / Dodge | 300 / Magnum | 40 | 271 | 6.8 | 19930 | 0.9 |
| 2005 | Chrysler / Dodge | Town & Country / Caravan | 23 | 165 | 7.2 | 19818 | 1.2 |
| 2007 | Dodge | Caliber | 28 | 103 | 3.7 | 5748 | 1.1 |
| 2005 | Ford / Mercury | Five Hundred / Freestyle / Montego | 43 | 341 | 7.9 | 14633 | 0.9 |
| 2006 | Honda | Accord | 27 | 126 | 4.7 | 7333 | 0.3 |
| 2006 | Honda | Civic | 26 | 130 | 5.0 | 7731 | 0.9 |
| 2005 | Honda | Odyssey | 27 | 208 | 7.7 | 16385 | 0.6 |
| 2006 | Honda | Odyssey | 24 | 113 | 4.7 | 9106 | 0.2 |
| 2006 | Hyundai | Sonata | 26 | 129 | 5.0 | 9372 | 0.3 |
| 2005 | Hyundai | Tucson | 31 | 192 | 6.2 | 15266 | 0.3 |
| 2005 | Mazda | Mazda3 | 20 | 154 | 7.7 | 15214 | 0.4 |
| 2006 | Mazda | Mazda3 | 22 | 103 | 4.7 | 7136 | 0.2 |
| 2005 | Subaru | Legacy / Outback | 25 | 188 | 7.5 | 15431 | 0.5 |
| 2006 | Toyota | Prius | 32 | 76 | 2.4 | 6184 | 0.3 |
| 2006 | Toyota | RAV4 | 25 | 83 | 3.3 | 5108 | 0.3 |
| 2006 | Volkswagen | Jetta | 33 | 220 | 6.7 | 11832 | 0.7 |
| 2006 | Volkswagen | Passat | 28 | 145 | 5.2 | 8366 | 0.7 |
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The "2006 Jetta" also includes 2005.5s. TrueDelta's analyses place half-year cars in the following year.
Definitions
- Vehicles -- number of vehicles for which owners provided data
- Months -- total number of months for which these owners supplied data
- Months per vehicle -- average number of months of data per vehicle
- Average reading -- average odometer reading during these months (based on ends of quarters)
- Trips/Year -- average number of successful repair trips per year
- Ninety-percent confidence interval -- range within which the results from nine out of ten such surveys would fall, displayed as thin lines in this chart:
Currently wide, the confidence intervals will shrink as the sample sizes and the number of months per vehicle grow. Even now, clear patterns are evident. Asian models tend to have lower repair rates, while first-year designs tend to have higher ones. But the absolute differences are not large. Even the least reliable models in the sample still averaged only a bit over one trip to the shop per year.
Everyone who helped make these first results possible, thank you.
You can help provide more comprehensive and more precise future results by joining the panel.
