Skip the auto shop - Our mechanics make house calls

Q: Not happy about transmission failure

asked by on

At only 65,000 miles, the automatic transmission in my 2009 Chevrolet Traverse failed catastrophically. I never thought I would be paying so much to repair such a new car. How will I know it won’t just fail again after I shell out the cash? Is the car defective or will a new transmission solve my problem?

Chevrolet determined that the transmission on the 2009 Chevy Traverse that are equipped with the 6T70/75 6-speed automatic transmission (RPO MH2, MH4, MH6, and MY9 have breaks on the clutch wave plates. This causes the transmission to have no reverse, and slip/flare/harsh shifts in 3rd and/or 5th gear (set codes p0776 and p0842). The Technical Service Bulletin (TSB #09-07-30-012B in march of 2011) details a repair process of the broken clutch wave plate. However, if you are out of the 5 years/100,000 miles, whichever comes first on powertrain warranty, GM will not offer any assistance for this repair. This repair must be done by a transmission specialist due to the process required for correction. It should be noted that if you happen to be just out of the powertrain warranty period, it may not be a bad idea to request GM provide some assistance for this repair, given that you have maintained the vehicle at the dealer and are performing the repair at the dealer as well.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2009 Lincoln MKZ vibrates between 25-40 mph

I would recommend having your wheel balance checked. Often times vibrations, such as those you are experiencing on your Lincoln MKZ, can occur while driving if the wheel balance of any of the wheels is out of specification by more...

Q: How do I use the lane change signal feature?

The lane change signal feature flashes the turn signal three times to let surrounding drivers know that you are changing lanes. To use this feature, pull up or push down on the turn signal level and immediately release.

Q: The car cranks but it won't start

Fuel pressure and ignition spark need to be checked. Also, having fault codes checked in the engine computer is also necessary as hard faults that may prevent the vehicle starting could be stored. A faulty ground will generally be accompanied...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...