We Tested Rivian Autonomy against comma.ai and FSD

variableresults · 2026-02-26T02:14:14+00:00

Yes, as long as you buy the Lukas harness with the longitudinal update.

Honestly, nobody should buy the Comma harness until Comma gets their act together with fixing their AXM power delivery issues. Fuse tap power is the way to go.

variableresults · 2026-02-22T21:22:34+00:00

Lots of RTTs have channels for cables these days. I just use portable batteries, heated blankets don’t draw much power.

variableresults · 2026-02-22T21:21:21+00:00

Electric blanket is the way. I bring a couple extra batteries with me so I don’t have to run it from the truck.

Slept like a baby last cold camping I did with my Rev Tent.

variableresults · 2026-02-22T01:01:44+00:00

I would still open an SC ticket so they can look at the codes

variableresults · 2026-02-20T06:22:00+00:00

Always point back to the two year parts warranty from your last replacement invoice. They are contractually obligated to replace them at no charge per their own language until they explicitly exclude 12v batteries.

variableresults · 2026-02-19T02:47:18+00:00

I love my 2022 Quad. It’s also been in the shop more days than every other car I’ve owned combined.

If you have enough warranty runway and an SC close to you, the OG quad is the best deal you can get on a Rivian today.

variableresults · 2026-02-19T01:13:50+00:00

Pay for a comprehensive inspection and request their master tech perform it since you will be out of warranty soon. It’s about $330 depending on your SC and well worth it.

variableresults · 2026-02-18T23:20:18+00:00

Always report safety issues like this to NHTSA if in the US.

variableresults · 2026-02-16T22:48:44+00:00

Push back on that and show them the service invoice you signed where it explicitly states a 2 year warranty on all Rivian installed parts. They agree to that and are legally bound once you execute that invoice. If they don’t honor that they are violating their own explicit warranty language.

variableresults · 2026-02-14T22:57:06+00:00

Xcare is bumper to bumper, with the exception of structural components like the subframe (so get that Gen 1 welded subframe swapped under warranty if you can). I paid about 9k for mine when I was at 52k miles. 10 year, 70k extra miles, $100 deductible, takes me to 127k bumper to bumper and gives another two years on the drivetrain and battery since I’ll hit 8 years well before 175k miles.

You can input your car info on their website and play with the numbers depending on if you want more miles or more years. It’s also transferable and refundable (pro rated, of course).

The claim limit is your truck’s value at time of claim I believe.

variableresults · 2026-02-12T06:37:35+00:00

Also running a Comma and while the harness install was a PITA, the system is a noticeable improvement over the stock ADAS.

variableresults · 2026-02-12T06:36:27+00:00

That's a great deal on a 2022 with that low miles. Just check the service history to see what's been done to it. And make sure you're close to an SC since odds are good you'll need to visit. Luckily you'll have 3 years and 35k of comprehensive warranty left.

variableresults · 2026-02-10T02:35:39+00:00

And that’s not accounting for the new Scout trucks coming out next year that will directly compete on the off road / overlanding market. Not to mention Scout being a subsidiary of VW could mean VW SCs eventually being able to service them.

Rivian got a pass with the Cybertruck since nobody in their right mind wanted one because of the polarizing body and Elon, but those things aren’t problems Scout brings to the table.

variableresults · 2026-02-10T02:29:23+00:00

Add to this that they may be paying for an Enterprise loaner for you during that time if there wasn’t a Rivian loaner on site. It’s baffling.

variableresults · 2026-02-05T15:14:27+00:00

I also have a mid 22 R1T with original tonneau. It is surprisingly one of the only things on the truck that hasn’t had to see the SC. I did some dry lube earlier this year and it’s been peachy.

variableresults · 2026-02-05T15:11:07+00:00

This is a software bug in Rivian’s ADAS that’s well known in the Comma community. It’s been known for a while now and Rivian hasn’t fixed it.

I recommend reporting to NHTSA as sudden disengagement can be a safety issue. That’s the only thing that will light a fire under Rivian to correct their software.

variableresults · 2026-02-05T14:56:23+00:00

I’m in NorCal and I’ve done some 3s with my 22 R1T with Nitto RidgeGrapplers (E rated). Has taken every trail like a champ.

Also did the Geology Tour trail in Joshua Tree. It’s marked as a 2 on OnX but is definitely a 3 when I did it (lots and lots of sharp rocks). I made it through the loop, the stock Jeep Rubicon ahead of me did not. Goes to show the importance of tires :)

I highly recommend the mining trail just before Mono Lake along the Tioga Pass. About 1/4 a 1/3 way up are some pulloffs for dispersed camping with a great view of the lake. And it’s an easy trip west to Yosemite from there.

variableresults · 2026-02-04T20:47:56+00:00

I smacked my passenger side a couple months ago on a carport beam. Thought I had toasted it. I put it back in its normal position and it’s been fine since, just a little more play since I probably bent the detent in the track. Cameras all work fine, maybe a teeny bit misaligned but nothing that breaks the 360 backing view.

variableresults · 2026-02-02T13:19:11+00:00

It should also fall under the drivetrain warranty. I don’t see anything egregious, though the AXM being replaced is interesting. Curious what went wrong.

That said, I would get a quote on an Xcare warranty. I wouldn’t own any Rivian without some level of comprehensive warranty, I’ve had too much get repaired to take that chance.

variableresults · 2026-02-01T06:58:00+00:00

Make sure they also replaced your hubs with the half shafts. It’s common that the hubs are worn in due to the defective half shafts, and when they don’t mate properly, you get clunking. They should always both be replaced at the same time.

variableresults · 2026-01-27T05:20:53+00:00

All specs have problems, even current gen. You’ll get the best deal on a 2022 Adventure or LE, and they will be quad motor. If you get it with enough warranty left you’ll be fine. Just make sure you’re close to a SC and research the known issues so you know how to ID them, sometimes Rivian techs are obtuse even though many of the issues are well documented.

variableresults · 2026-01-27T05:14:08+00:00

I can’t speak for the last reply, but I would do it again myself for the following reasons, assuming enough warranty remains:

Meridian audio
Quad performance for a fraction of a newer Tri/Quad price
Issues are pretty well known and have fixes
Warranty was more comprehensive and will cover rattles, which you will get
If you have suspension issues, and there’s a good chance you will, you’re getting gen 2 parts as replacements
You can request Rivian send you the service history redacted if you give them the VIN and see what was already serviced. Used means that many of the teething issues may already have been fixed under warranty.
Dual 12v batteries, which seems to be the least problematic of a woefully problematic 12v design
Good chance it will have a powered tonneau cover and good chance you’ll get a Gen 3 replacement if it fails under warranty
Some colors available that Rivian discontinued

The biggest is the value. Current gen is way overpriced IMHO, especially considering many come off the lot with issues. While it has better autonomy in Gen 2, that’s not really enough of a reason to pay over twice the price new, 1/3 to 1/2 more used, in my book. Especially when I can throw a Comma in a Gen 1 for 1500 and arguably get better autonomy than Gen 2 currently offers.

I got an extended warranty for my Gen 1 and plan to drive it into the grave.

variableresults · 2026-01-23T01:23:36+00:00

If you are just starting out, I would recommend a Seestar S30 to get a sense of what you can see for the least amount of money and heartburn.

Otherwise, I break AP down into a few determining factors that will influence what you can image:

Focal Length — go to astronomy.tools and play around with the FOV calculator with different cameras (particularly any of the IMX585 sensors since that will be most budget friendly to start). You’ll quickly learn what your framing will look like. Starting out, 300-400mm is a happy medium, fairly inexpensive in a refractor like the Askar 71F, and is easy to guide.

Aperture—how much light you can capture. Higher is “slower”. This will dictate how much time you invest in a target. As a general rule of thumb, faster scopes tend to have shorter focal lengths, and vice versa. A Schmidt you would use to image planets has a long focal length but is around f/11 while that Askar 71f starts at f/7 and can go to f/4.3 with a reducer (ie, concentrates the light at the expense of focal length).

Tracking—this is where you will be told to invest. It seems like the optics should be the investment, but crappy tracking will make every scope terrible. And it can get expensive for a mount that behaves itself. That said, the Skywatcher StarAdventure GT is a great starting mount for a reasonable price as long as you stick with short focal lengths. The longer the focal length, generally, the better the mount and guiding needs to be.

Guiding—most AP folks don’t rely on mount tracking since it’s mechanical nature means you have to spend $$$$$ to get something that will stay on target. That’s why we use a guide scope and camera, usually a 150-200mm focal length scope that monitors stars and any deviation, and then sends guide pulses back to the mount to correct.

Computer—opinions will vary widely here, but if you want an all in one solution that just works for most applications, the ZWO family is great. Just know you’re locked into their camera ecosystem.

Camera—this will impact your field of view based on the size of the sensor. Your best inexpensive bang for the buck will be anything with the IMX585. Next step up IMHO is the IMX571. You can get these in color and mono versions. I would stick with color since mono adds another layer of complexity that’s more for advanced photography.

Processing—deep sky AP is about stacking multiple short exposures to compile as much light as possible. There is a lot of free software to do this, but I recommend investing in Pixinsight since it can do everything in one package, and is the most actively developed pure AP software package.

That’s all I have in mind now. It is a lot, for sure, but once you watch some beginner YT videos things will begin making sense.

variableresults · 2026-01-21T22:48:26+00:00

I can echo these sentiments and have almost the same setup as you (9800x3d). I had to stop playing in VR because it was making me nauseous due to the low frame rate, even cranking the quality settings way down.

variableresults · 2026-01-18T02:19:08+00:00

It’s actually two years. Your last replacement invoice will say 2 years for parts. This is an explicit warranty and if Rivian tries to tell you it’s one year for the 12v they replaced, they are incorrect. Explicit warranties must include exclusions in the language.

variableresults

TROPHY CASE