Auto hold engaging when not turned on

Malcolmdc · Aug 1st, 2023, 17:35

My 2019 XC90 Inscription with 52,000 miles has intermittently started auto holding the vehicle when Auto hold is not selected. The car has always been serviced by Volvo and brakes were done about 4,000 miles ago and was fine till recently. I notice it seems to happen when the RPMs are low low 500 or so. Is this normal? It's running well otherwise.

volvo s60 2001 · Aug 1st, 2023, 17:43

Quote:

Originally Posted by Malcolmdc

My 2019 XC90 Inscription with 52,000 miles has intermittently started auto holding the vehicle when Auto hold is not selected. The car has always been serviced by Volvo and brakes were done about 4,000 miles ago and was fine till recently. I notice it seems to happen when the RPMs are low low 500 or so. Is this normal? It's running well otherwise.

500 RPM is not normal I am afraid. Most engines runs at 800 - 950 RPM region when at idle.

Malcolmdc · Aug 1st, 2023, 17:58

Quote:

Originally Posted by volvo s60 2001

500 RPM is not normal I am afraid. Most engines runs at 800 - 950 RPM region when at idle.

I might be off a a couple hundred RPM but wanted to indicate it only seems to happen when idling low.

neilgorin · Aug 1st, 2023, 18:38

The autohold puts the brakes on when you stop, but I've found on many cars I've driven that you still get a degree of it with them off in that the hill hold brake will sometimes cut in even if you aren't on a hill.

The difference to me seems to be the engine stays off when you lift your foot off the brake if the autohold is on but restarts immediately if it's not on - there's still a sensation that you are sometimes pulling against the brakes when pulling away and I really wish they didn't do that.

Malcolmdc · Aug 1st, 2023, 20:38

I might not have described the problem correctly but I think I found the problem. A loose nut behind the wheel. Somehow I deselected Driver Preference and I think that had something to do with it. Thanks for all replies. My only complaint about my XC90 is that you can select or deselect all kinds of options without realizing it. I wish there was a lock or a prompt that would say "are you sure you want to do that"

Aug 1st, 2023, 17:35	#1
Malcolmdc New Member Last Online: Aug 2nd, 2023 12:51 Join Date: Feb 2020 Location: New Jersey	Auto hold engaging when not turned on My 2019 XC90 Inscription with 52,000 miles has intermittently started auto holding the vehicle when Auto hold is not selected. The car has always been serviced by Volvo and brakes were done about 4,000 miles ago and was fine till recently. I notice it seems to happen when the RPMs are low low 500 or so. Is this normal? It's running well otherwise.

Aug 1st, 2023, 18:38	#4
neilgorin Senior Member Last Online: Yesterday 08:48 Join Date: Apr 2019 Location: North Berwick	The autohold puts the brakes on when you stop, but I've found on many cars I've driven that you still get a degree of it with them off in that the hill hold brake will sometimes cut in even if you aren't on a hill. The difference to me seems to be the engine stays off when you lift your foot off the brake if the autohold is on but restarts immediately if it's not on - there's still a sensation that you are sometimes pulling against the brakes when pulling away and I really wish they didn't do that. __________________ 2023 V60 B3 Core with Blonde Leather. A classic Friday Afternoon car. Before: 2019 V60 D4 Inscription Manual ran to 105k miles. 2015 V70 D3 5 Cyl ran to 93k. 2010 V50 1.6D DrivE ran to 87k.

Aug 1st, 2023, 20:38	#5
Malcolmdc New Member Last Online: Aug 2nd, 2023 12:51 Join Date: Feb 2020 Location: New Jersey	I might not have described the problem correctly but I think I found the problem. A loose nut behind the wheel. Somehow I deselected Driver Preference and I think that had something to do with it. Thanks for all replies. My only complaint about my XC90 is that you can select or deselect all kinds of options without realizing it. I wish there was a lock or a prompt that would say "are you sure you want to do that"

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