Navigation Upgrade Info

SamDSJR · November 19, 2019

Just an FYI for anyone thinking about doing the navigation upgrade -

I just had mine done this morning. I have a 2019. Not sure if anyone noticed, but they took the nav upgrade kit off the accessories site for the 2019 model. It is however available for the 2020 model, part number 84489271. I can confirm that the 2020 part does work on the 2019. The dealer tried to say it might not work, but it did.

Also, originally the dealer tried to say this could take up to 3 hours, since waiting for downloads from GM can take forever. Don't be afraid to be pushy. I pushed back and called GM myself. GM stated there is absolutely no way you should be charged more than .5 hours of labor. When I confronted the dealer about that (ahead of time) and told them I'm not paying for someone to sit back and watch a progress bar - they complained about it but finally agreed after I told them I had called GM directly.

In the end I was only charged .5 hours of labor, $64 dollars and change to program it.

Also FYI in case you didn't see all GM accessories (minus the running boards) are 20% off online only from now till 12/4/2019.

FiatDale · November 20, 2019

When I confronted the dealer about that (ahead of time) and told them I'm not paying for someone to sit back and watch a progress bar

While I agree, as long as the vehicle is sitting I. Someone’s bay, it’s also preventing another vehicle from being worked on. Glad they agreed to .5. Mine took about 30 mins to flash

SamDSJR · November 20, 2019

12 minutes ago, FiatDale said:

While I agree, as long as the vehicle is sitting I. Someone’s bay, it’s also preventing another vehicle from being worked on. Glad they agreed to .5. Mine took about 30 mins to flash

That's actually a great point I never thought about - LOL. Now I feel like a jerk.

JimCost2014 · November 20, 2019

44 minutes ago, SamDSJR said:

That's actually a great point I never thought about - LOL. Now I feel like a jerk.

I wouldn't, your point was valid, if they are charging you for 3 hours of labor, it makes no difference if it is taking up a bay sitting idle in the stall. It is making money sitting there.

Now if the dealer is proactive, and somewhat ambitious, they would push your truck out into the holding yard while it was downloading/installing and bring in a new car, so they could "double dip" the tech's time.

FiatDale · November 21, 2019

Yes, but each tech typically has only one pc with MDI so that would be taken up by the truck downloading the software. I agree there’s other ways about it, but sometimes it just is what it is

Dali555 · November 21, 2019

Sorry, newb here, just bought my truck a week and a half ago.... What does the Nav upgrade do?

JD214 · November 22, 2019

Did they flash your cluster also? If they didn't then the speed limit and street names won't show in the cluster. I added nav to my 19 a year ago when I got it. You also have to get OnStar to add connected nav to the account IF you want Online search and traffic info because it is NOT provided through SAT radio anymore. The Nav upgrade is nice. What it consists of is an SD card with the maps and a Authorization code. The code allows them to add the NAV calibration to the official build of your truck so that in the future if you were to ever have a part replaced or updated the calibrations all point to the truck having navigation. I love it. The online search is actually better than googles for me. I test it time to time. They just added a new KFC where I am and wanted to see if it was found. Google maps didn't and the built in nav DID. I also can now send destinations straight to my truck nav from my phone app.

The nav upgrade is great since its not an option for LT trims. Its also not to badly priced. I did the programming myself. The dealers make it seem like a big deal because they just aren't familiar with it. The time is accurate at half hour. That includes the cluster I think they did a fantastic job with this nav system. It is really great in my opinion. Only draw back is the SD card for the Maps.

Terry Crawford · May 4, 2020

I tried to order the 84489271 navigation upgrade for the IOS radio on a new 2020 GMC Sierra.

The local dealer said it was discontinued and I ordered one from a online gm parts store on 04/23/2020

and said it would take 10 days, but just got an email today that the order was canceled today 05/04/2020.

Question: Where can I get one?

Why did they discontinue this upgrade, It just consists of a SD Card and a pamphlet .

Did the software get hacked?

Is it going to be available in the future?

pewterliftedz · May 4, 2020

3 hours ago, Terry Crawford said:

I tried to order the 84489271 navigation upgrade for the IOS radio on a new 2020 GMC Sierra.

The local dealer said it was discontinued and I ordered one from a online gm parts store on 04/23/2020

and said it would take 10 days, but just got an email today that the order was canceled today 05/04/2020.

Question: Where can I get one?

Why did they discontinue this upgrade, It just consists of a SD Card and a pamphlet .

Did the software get hacked?

Is it going to be available in the future?

That's odd, I was planning to order that next month. I wonder if they are just changing part numbers

Legal4u · May 8, 2020

Hello guys,

I purchased the NAV upgrade in December, and just had the dealer perform the update this afternoon. The speed limit sign appears in the cluster (blank), but when I press "NAV" it shows an error screen. Dealer said it should fully work in 24-48 hours. Does this sound correct?