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10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
96,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Chevrolet Tahoe Hybrid drivetrain problems

drivetrain problem

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2009 Chevrolet Tahoe Hybrid Owner Comments

problem #3

Apr 112019

Tahoe Hybrid

  • 112,000 miles

A D V E R T I S E M E N T S

GM has not been able to figure out my car. It has been in three times for an eltrical issue. The car revs up and speeds up to 55 miles per hour on its own. Has no power steering. Reduced engine power. Throwing 47 codes. No communication between transmission and computer. Stability track turns off. Doors and auto shut off turn off and on when this occurs.

- Wrightwood, CA, USA

problem #2

Dec 292017

Tahoe Hybrid

  • 100,000 miles
My 2009 hybrid Tahoe accelerates uncontrollably on occasion. The issue arrises commonly in stop-and-go traffic when the hybrid system starts/stops the gasoline engine regularly. I notice in many circumstances when switching gas/electric modes the vehicle lurches forward. The feeling is the same as letting out the clutch quickly on a vehicle with a manual transmission. I have done as much research as I can and it appears the problem points to issues with the transmission fluid pump(s) and/or control modules. When the system operates on the gas engine, the hybrid Tahoe's transmission relies on an engine driven hydraulic fluid pump. When the system switches to electric mode, an auxiliary transmission fluid pump turns on, driven by an independent electric motor. The lurch I described results from what I believe to be a failing pump or control module, or a combination of the both which engages gears when it shouldn't. this lurch is rather dangerous as I have had to jump on the brakes many times to avoid rear ending other drivers. I have spoken with several individuals who own, drive or have driven these gmt900 series hybrids (2008-2013 Chevy Tahoe/Silverado hybrids, GMC Yukon hybrids, Cadillac escalade hybrids) all individuals have described the dreaded lurch. Some say replacing the electric auxiliary transmission fluid pump solves the problem, others still have lurching issues. One individual who drives a Cadillac escalade hybrid claimed to have actually rear ended someone due to the uncontrollable lurch. As for my personal car, the lurch occurs in stop and go traffic and occurs at least once a week, sometimes more. Thankfully I have not been involved in an accident yet, however I feel one may be imminent. Here is a link to a Tahoe/Yukon owners form where I have shared some of my findings: Https://www.tahoeyukonforum.com/threads/hybrid-transmission.104102/

- San Antonio, TX, USA

problem #1

Dec 142012

Tahoe Hybrid

  • 76,000 miles
When decelerating using braking and in hybrid mode the vehicel surges ahead when the hybrid system disengages. This causes the vehicle to accelerate and prevents stopping. High potential to hit the vehicle in front or person if at a crosswalk. Chevrolet dealer iin avon ct, was unable to find cause with two visits.

- Simsbury , CT, USA

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