2009 Chevrolet Avalanche 1500 Transmission and drivetrain Problems
- Complaints
- 3about this part
- Share
- 15%of 20 total for the year
- Median mileage
- 84,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the transmission and drivetrain of the 2009 Chevrolet Avalanche 1500, 15% of the 20 complaints for this model year. Where a mileage was given, the median is 84,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving to a church function with my wife and about 30mph under acceleration, my truck started lugging like it was in 6th gear. It started shaking then the tachometer was fluctuating up and down about 500 RPM's. I checked the transmission fluid and looked good. I have a very important business trip tomorrow morning and now I am stuck. I took it for another drive to see if the problem occurred at a higher speed and it does. I put the cruise on about 60mph and the truck was bucking and the RPM's were going crazy. I drive mostly highway miles. …”
NHTSA complaint #10440346, filed 2011-12, 134,475 miles“Engine dies, door locks start opening and closing, all dash lights go off, radio goes off,car starts on own 3 to 6 seconds, did this at 60 MPH and at 15 MPH.”
NHTSA complaint #10863814, filed 2016-05, 84,000 miles“09 chevy avalanche the drive shaft or ball joint was undersized by 5/1000 to make the 6 speed transmission shift correctly/thus causing slack which makes noises from a jar to sounding like you were hit in the rear. 3 times to dealer--3/30/10 at3,788 mi, 10/28/10 w/8,185 mi to3/3/11 w/14,000 mi. They tell me now its no fix, but has 100,00 mi warranty. It is getting worse and could finally twist and break which may cause an accident w/ bodily harm,it is getting much worse and affects late 08 models thru 2011. …”
NHTSA complaint #10389858, filed 2011-03, 3,788 milesRelated service bulletins
- 11009088Sep 16, 2024This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be…
- 11006421Jul 24, 2024GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or…
- 11001321May 16, 2024This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10248721Dec 18, 2023This bulletin advises the technician that the 6L50 (MYB), 6L80 (MYC) and 6L90 (MYD) Transmission Oil Filter and Seal Kit part number 24236933 is currently transitioning from a…
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242061Aug 7, 2023This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2013 | 1 | 3% |
| 2011 | 3 | 11% |
| 2009 | 3 | 15% |
| 2008 | 1 | 3% |
| 2007 | 10 | 9% |
| 2006 | 12 | 31% |
| 2005 | 17 | 13% |
| 2004 | 5 | 3% |
| 2003 | 4 | 2% |
| 2002 | 6 | 4% |
Other parts of the 2009 Chevrolet Avalanche 1500
9 complaintsOther or unknown
7 complaintsBody and structure
3 complaintsElectrical system
2 complaintsEngine
1 complaintsSteering
1 complaintsWheels
1 complaints
← All problems reported for the 2009 Chevrolet Avalanche 1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology