The Volvo tech told me that it would take a few hours to recalibrate the speedometer to my new wheel size. He said they had to recalibrate each wheel with the software for the speedometer to read the correct speed when you change wheel sizes. It's around $300 and 3 hours of wait time for it to get done. I guess I'll wait til my first oil change to get it done. I went from the Volvo 20" wheels to an aftermarket 19" wheel. I noticed going over RR tracks was more smooth with the 19's as opposed to the 20's. Cornering was the same, so a win for 19" tires being the sweet spot for both comfort and performance.
speedometer updates with new wheels
3puttjay
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The Volvo tech told me that it would take a few hours to recalibrate the speedometer to my new wheel size. He said they had to recalibrate each wheel with the software for the speedometer to read the correct speed when you change wheel sizes. It's around $300 and 3 hours of wait time for it to get done. I guess I'll wait til my first oil change to get it done. I went from the Volvo 20" wheels to an aftermarket 19" wheel. I noticed going over RR tracks was more smooth with the 19's as opposed to the 20's. Cornering was the same, so a win for 19" tires being the sweet spot for both comfort and performance.
If you bought the size of wheels used by Volvo, there is no need for calibration
The difference is negligible and no calibration is needed
![Image]()
www.willtheyfit.com
The difference is negligible and no calibration is needed
Alloy Wheel & Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit
Alloy Wheel & tyre fitment calculator - it calculates inset, poke, speedo error, tyre stretch and loads more.
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If the wheel/tire combo is the same overall outer circumference you should be good to go.
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41 Posts
I switch between 20" summer and 19" winter set-up every year and have no issues.
Both sets are the standard Volvo sizing so revs/mile do not change enough to even show.
Unless you went to a custom tire size, no need for calibration
Both sets are the standard Volvo sizing so revs/mile do not change enough to even show.
Unless you went to a custom tire size, no need for calibration
It's only a 1mph at 70mph difference. But my OCD does not let me just ignore it. They set it at the factory for whichever wheel they put on 18", 19",20", or 21". So that's why they wouldn't just give me the 19" wheels after upgrading to 20" from the factory. I was willing to accept the $800 upcharge, but they wouldn't trade out the 20's for the 19's at the dealership. I would have had to pay over $600 per wheel plus tires from Volvo. I went with forged wheels and Pirelli's for less than the Volvo package.
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If the wheel sizes are in the Volvo standard used on the XC60, no calibration is required
The technician who told you that calibration is needed obviously doesn't know enough about wheel sizes
Just a small example, I have a Giulia Q4 and a summer set of wheels 19"
225/40R19 front and
255/35R19 rear
Winter set of wheels 18"
225/45R18
245/40R18
I've never had any problems
The technician who told you that calibration is needed obviously doesn't know enough about wheel sizes
Just a small example, I have a Giulia Q4 and a summer set of wheels 19"
225/40R19 front and
255/35R19 rear
Winter set of wheels 18"
225/45R18
245/40R18
I've never had any problems
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19 Posts
Why do you think it feels smother with the 19" compared to the 20" wheels? It's because of higher distans between rim and outside of wheel. The outher dimension should be the same either if you have 19" or 22". You are getting foled from the Volvo tech if they try to tell you something else.
I never said it was much of a problem. But the tech told me that when you change wheel sizes and tires, it never comes out to the exact same figure for circumference between the two. Its a small difference, just .5 mph between the previous setup and the current setup at 65mph. It feels a little more "cushioned" from going from 255/45-20 to 235/55-19 tires. It still feels stuck to the road as previous tires but it is more composed over RR tracks and minor potholes.
Say hello to the technician and tell him to try something else, he has no idea about wheels and sizes
You ask the technician if every Volvo owner has to do calibration when using winter tires 235/55/19 or maybe 235/60/18
According to your technician, every owner who changes summer and winter wheels would have to do calibration and pay $600 annually.
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148 Posts
VDASH can change wheel circumference without having to use VIDA. I wouldn't bother changing if new wheels make speedo reading the same or higher than actual speed to avoid going over speed limits
If he changed the size, which is not used by Volvo, but if he uses standard wheel sizes, there is no need
20" vs 18" Reading at 60mph 60mph 59.86mph
20" vs 19" Reading at 60mph 60mph 59.71mph
19" vs 18" Reading at 60mph 60mph 60.15mph
21" vs 19" Reading at 60mph 60mph 59.7mph
21" vs 18" Reading at 60mph 60mph 59.85mph
22" vs 19" Reading at 60mph 60mph 60.26mph
I didn't imply that the technician said I had to do it. "If" I wished to have "exact" speedometer readings, then the course of action would entail $300 worth of parts and labor. If it isn't a problem for you, good, no further action on your part. But for me it is an issue, minor, but still an issue.
If it is an issue for you (20" vs 19" Reading at 60mph 60mph 59.71mph ), then do a recalibration and solve your issue
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