Faults:

Transmission failure, wheel bearing failure, power steering pump failure, multiple power steering lines failed, crank shaft angle sensor failure and a number of others.

General Comments:

The vehicle is extremely poorly engineered and very difficult to do maintenance on.

You have to tilt the engine forward to change the back 3 spark plugs. It's a major job to change a $25 angle crank sensor, a major job to change power steering lines, diagnostic system is very lacking - you will experience problems and get no codes till they become major if you get a code at all!! My solution - I bought a Honda - much happier with it!

Faults:

The van has always been serviced on time since purchased new in 2007.

13 Sept, 2016, 113,956 km. Oil & filter change & lube + 15 point inspection.

21 Sept, 2016, 114,161 km. Replaced failed transmission (8 days & 205 km after maintenance).

24 Oct, 2016, 117,380 km. Replace failed engine SV6, 3.9 liters (41 days & 3,424 km after maintenance).

General Comments:

I've been a loyal GM customer for 50+ years, and my last purchases, one new Pontiac Transport, then a new Pontiac Montana SV6 ext, then a new 2002 Chevrolet Venture, then this 2008 Pontiac Montana SV6 Ext. which was never abused, still look like new.

All these new vans were all fully serviced & maintained by GM, and I have always been quite satisfied with them, with only the usual wear & tear on parts, but have never been so disappointed with GM now, that a transmission & engine both fail within 30 days of a full maintenance, and especially the fact that both costly parts failed under 117,000 km (70,000 to 72,000 miles) which is totally unacceptable.

The life of a transmission & engine should & must be more than twice that, and I definitely believe that GM is aware of these defective parts and they should have been dealt with as RECALLS & replacement.

I would like to know who has had these similar problems?

Faults:

Lower signal lights replaced 3 times in 1 year!

Gaskets blown at 20,000km; almost lost the engine!

Driver's seat worn.

Front & rear brakes had to be replaced after one year and a half

Now, a rattling in the back hatch.

In my opinion, the Montana is a piece of junk!!!

Will NEVER buy a GM Pontiac again... Honda next!

General Comments:

Terribly built van. I am actually afraid for my safety and my family's safety every time we go on the road!!

Faults:

The same day I leased my new Montana, the fuel sensor went on the vehicle. 1 week later back windshield wiper failed.

General Comments:

The Montana is a waste of money. One would think that you would not have any issues with a brand new vehicle within the first week of ownership. The vehicle is also lacking sufficient storage areas and poor seat design.