NHTSA — Power Train Problems

2.5

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
61,610 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 Pontiac G8 drivetrain problems

drivetrain problem

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2009 Pontiac G8 Owner Comments

problem #4

Dec 112015

G8 6-cyl

  • 79,264 miles

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

Left front wheel bearing ass'Y has been replaced twice because of moan/roaring noise that increases and decreases as speed increases and decreases. Noise becomes noticeably louder as you make a right hand turn - which causes the left front wheel to have an increase in weight bearing. Original replaced @ 78,042 miles. First replacement become so noisy that it was replaced @ 79,264 miles. Noise was lessened, but was still noticeable. Now, the second replacement is so noisy driving it straight down the highway that I am afraid to drive it @ 90,000 miles.

- Birmingham, AL, USA

problem #3

Apr 132015

G8 6-cyl

  • 133,126 miles
While driving on the highway at 70 the car shifted to park and then shifted back to drive on it's own.

- Muskegon, NH, USA

problem #2

Nov 232009

G8

  • 17,150 miles
First occurred N 11/23/2009. On the interstate it loses all power, engine shuts down, ignition stops, power steering stops, brakes fail - complete vehicle stoppage and full operating systems shut down without warning at 70 mph, twice! second occurrence was 1/26/2010.

- Cape Coral, FL, USA

problem #1

Nov 232009

G8

  • 16,900 miles
Also occurred again on 1/26/2010/ on the interstate it loses all power, engine shuts down, ignition stops, power steering stops, brakes fail - complete vehicle stoppage and full operating systems shut down without warning at 70 mph, twice!

- Cape Coral, FL, USA

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