Coolant Leaking

2006 Pontiac G6

This problem may be covered under warranty. Ask your Pontiac dealer.

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CarComplaints.com Notes: The 2006 Pontiac G6 has major problems with two areas fairly critical to the act of driving... steering & safety.

The 2006 G6 has a major defect trend with electronic power-assisted steering failure. The power steering cuts out while driving, making it extremely difficult to steer. G6 owners typically report spending $600 - $1,200+ to fix the problem, replacing either the entire steering column or the power assist motor.

In March 2010, GM recalled 1.3 million vehicles for this exact problem "...after receiving 1,100 complaints of power steering failures." However the 2006 G6 wasn't included in that recall.

In July 2010, GM issued a "Special Coverage Adjustment" — TSB #10183 — covering "certain" (not all) 2005, 2006 & 2008 Pontiac G6's for this power steering issue, up to 10 years/100k miles. However a large number of 2006 G6 owners have reported they were not covered by this campaign, based on VIN#.

As of late 2013 the NHTSA had well over 700 steering complaints on file for the 2006 G6, with 21 crashes & 12 injuries. The NHTSA closed their initial investigation in 2007, having determined that losing your power steering going over 15-20 mph isn't a big deal & that most crashes occurred at slow speeds, so not a safety risk. Ridiculous? Yep, we think so too.

The 2006 G6 also has an expensive problem with "popping" or "clunking" noises when turning, & that issue extends to newer model years as well.

Factor in the 2006 Pontiac G6's poor side impact protection & you end up with a vehicle you should steer clear of.

7.0

pretty bad
Typical Repair Cost:
No data
Average Mileage:
75,000 miles
Total Complaints:
4 complaints

Most Common Solutions:

  1. not sure (4 reports)
2006 Pontiac G6 cooling system problems

cooling system problem

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2006 Pontiac G6 Owner Comments

problem #4

May 122018

G6 2.4L,V4

  • Automatic transmission
  • 185,700 miles

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

I was going down the road one day and noticed the temperature gauge was going up. She was starting to overheat. I pulled over when on line past the 210 mark. It ran out of anti freeze. Bought some and filled it up and now she's leaking somewhere. Don’t know where it coming from. I might have a crack on the left side of radiator. The whole plastic cover was wet at some point and the bottom of drain plug had a little puddle. Is there anyone else had problems like this?

- celticstorm700, Bonne Terre, Mo, US

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problem #3

Sep 062013

G6 GTP 3.9L V6

  • Automatic transmission
  • 60,000 miles

One issue is with coolant leak caused by a bad head gasket. This was diagnosed by a mechanic. I would have to top off coolant level every 3 months or so.

Second problem is with engine poor grounding. GM certified mechanics replaced an engine block, but problem my car engine was still shutting off spontaneously. Took the car back for recheck and was told "we couldn't find anything wrong with the car". Took the car to a different mechanic and had the EMC cable fixed. Car has not been a problem since.

- Soy L., Rochester, NY, US

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problem #2

Dec 202006

G6 SE

  • Automatic transmission
  • 51,300 miles

So, I bought my G6 in April of 07. It is my first american purchase since 1994. I am sorely disappointed. In August of 07 my car was rear ended. Up until this point, I had no problems with the vehicle. Since, then it has been an on again, off again nightmare. I have had trouble with electrical programming, Key FOB battery and functionality (keyless remote), condensation in a headlight, paneling on the interior falling off while driving, stock wheel covers falling off while driving, and dash lights coming on for NO reason at all. All of this I have put up with while grimacing through various visits to my local dealership and phone calls to GM's 800 line.

And now THIS. I have a SEVERE coolant leak. I have a koi pond of anti freeze currently under my car in the garage. I have flushed out the system with my last oil change (less than a week ago), added stop leak and tried to find the source of the problem. To no avail.

I tried to trade in the POS yesterday but I am $8000 upside down on my loan. Oh my god! I am going to have to get a second job just to repare my car and pay to get the hell out of it!

NEVER, EVER, EVER again. Good luck to anyone who gives it a go...you're gonna need it.

- Nicole S., Phoenix, AZ, US

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problem #1

Oct 152006

(reported on)

G6 SE

  • 3,000 miles

Brand new G6, have owned it 9 months, and it's been into the dealership's service center 7 times as of Oct 16. this is the 4th time for Low Coolant. 1 time because an electrical short disabled the engine, twice because service center goofed! I reported it to the GM 800 I've spoke with "5" different reps from GM, and they seem to be under the impression "nothing" is wrong with my car. can you say LEMON?????

- Wil S., Macon, GA, US

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