Garmin Dashboard Disc
Mon, 11/10/2025 - 3:59pm
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    18 years
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I recall some discussion of Garmin Dashboard Disc years ago, but I have never had a need for it until now. Looking back at previous posts, one of the concerns was the adhesive coming loose and the GPS falling. For those here that use the Garmin Dashboard Disc, would you recommend it? There is a spot on my RV dash that might accommodate the disc.
Garmin Dashboard Disc
I recall some discussion of Garmin Dashboard Disc years ago, but I have never had a need for it until now. Looking back at previous posts, one of the concerns was the adhesive coming loose and the GPS falling. For those here that use the Garmin Dashboard Disc, would you recommend it? There is a spot on my RV dash that might accommodate the disc.
https://www.garmin.com/en-US/p/715210/pn/010-12982-06/
I used a similar disk that I got on Amazon. Came with 2 disks - 95mm. I have Amazon Prime so shipping was free.
https://www.amazon.com/dp/B07SPJ7BSX?ref_=ppx_hzsearch_conn_...
Be sure and clean the surface first. I applied the disk and let it sit for 24 hours.
It holds nice and strong. I heard that you can remove it by applying heat with a hair dryer and then gently prying it up with a plastic trim removal tool.
3 for $12 on eBay
3 pqck of disks 2.9 inches in diameter on eBay for $12 shipping included. They are descrobed as using 3M adhesive. See https://www.ebay.com/itm/177565198838
A larger version, 3.15 inches, is available as a 2-pack. https://www.ebay.com/itm/317519105835
John from PA
The disk...
The disk adheres very well to a flat surface. My dash is nowhere near flat so I had to create a custom spacer using PC-7 epoxy paste (Home Depot) of the top area of the dash in spot that I needed to mount it. The bottom of the spacer conforms to the top of the dash. The disc is stuck to the top of the created spacer (which is flat).
It has held with no issue through SoCal heat for many years now using 3M heavy duty double-sided acrylic adhesive tape (Home Depot). The disk can be removed by slicing through the adhesive using a very thin wire or fine metal guitar string. Then the adhesive itself can be removed with the help of alcohol and firm rubbing with your thumb (or other similar non-marring tool).
I had more issues (especially during the summer) however with the suction cup releasing from the disc. It would come off frequently on it's own with temperature extremes (cold to hot, hot to cold). I think this had more to do with the disk being black as well as the suction cup being black as well (black absorbs a lot of heat and gets very hot sitting on the dash of the car). I tried dish soap and various other ways to make sure the cup stayed locked onto the disk. Dish soap worked the best (it helps to form a better seal...slides around initially but locks into place after a day or so) but also eventually failed...it lasted a lot longer than having the mating surfaces totally clean.
I finally ended up adhering the bottom of the suction cup to the top of the dash disk with the double sided adhesive as well, eliminating the loss of suction from the cup. I also used the same adhesive to lock the upper section of the suction cup to the bottom section of the GPS mount itself. It has not moved since and is rock stable rather than flopping a bit because of the flexible suction cup.
nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area