Other powertrain problem on the 2007 Chevrolet Avalanche
Only 5 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When other powertrain problem gets reported
There are 5 reports of other powertrain problem on the 2007 Chevrolet Avalanche, 5 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
A part like this is normally expected to survive 92,000 miles. It is the 14th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 88,000 miles | — | — |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Putting it right typically runs $400–$4,500 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 7 model years of this car. It shows up earliest on the 2003, at a median of 15,000 miles, and latest on the 2007 at 90,000 miles.
By volume the 2002 carries the most reports, with 11; the 2007 has 5. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Tl*the contact owns 2007 chevrolet avalanche. The contact stated that the vehicle started rolling backwards while it was in park. The vehicle was not parked on a hill. The contact took the vehicle to the dealer who stated that there was a related technical service bulletin stating that some vehicles may rock or move forward while in the park position. The dealer also stated that the failure was caused by the transmission fluid releasing from the clutch pad which was normal. The contact stated this was not normal and could have caused the vehicle to crash into the garage. The dealer stated that there was nothing to repair. The failure mileage was 64,400. Updated 02/01/11*lj updated 03/22/11
So I was sitting at a red light, everything was cool.. And when I started to accelerate the truck almost felt like we got rear-ended. Then when I tried to accelerate it felt like it had slipped into neutral. Drive is completely dead, when I put itinto drive, I get nothing. So I put it in 1st, and it worked, it went into gear. Then when I started to accelerate it made this horrible scratching/grinding/whining sound. So I can accelerate slowly and switch to 2nd, slowly, and accelerate slowly and switch to 3rd. 3rd feels good when I accelerate but then if I step on it, it slips out of 3rd back to that neutral feeling. If I try to accelerate quickly in 1st and 2nd I get that horrible sound and grinding feel.it is so many people having this same problem over and over. Some say the dealer charge them over $2800 plus to repair others say some dealers fixed the part in the trans called the forward sprag gear and everything was ok. Its crazy that so many people with the same problem. 95 percent of the trucks despite the mileage ( 30, 000 to 93, 000) on her truck did this right after the warranty was up. My truck 07 with only 62, xxx on it…
When the vehicle shifts from 1st gear to 2nd gear around 17mph there is a loud clunk, and it sounds like the transmission is having trouble. It doesn't shift smoothly. After looking online this is a common issue for the avalanches. Chevrolet knowingly put in a transmission that doesn't effectively do it's job. The curb weight of a avalanche is 6000lbs and my uncle owns the same truck, which has eaten 2 transmissions so far with the same mileage. *tr
Also reported on the 2007 Chevrolet Avalanche
Airbag inflator rupture
Other body or interior problem
Instrument cluster or gauge failure
Airbag warning light or occupant sensor fault
Other electrical problem
Steering column or shaft failure
How far this goes
This page is kept out of search results because 5 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 5 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does other powertrain problem happen on the 2007 Chevrolet Avalanche?
Across 5 owner reports that included an odometer reading, half were filed by 90,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other powertrain problem on the 2007 Chevrolet Avalanche?
5 reports have been filed with NHTSA, about 0.2 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed