Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

How do I?

Old 01-24-2018, 12:10 AM
Thread Starter
Join Date: Sep 2017
Location: Western CO
Posts: 38
Default How do I?

How do I re-set the Service Reminder?

How do I turn on the winter driving mode on the trans? I know that it is right next to the econ/sport switch. I've pulled and pushed on it in every direction and it won't move. What does it do?
Old 01-24-2018, 10:00 AM
Senior Member
Join Date: May 2012
Location: Kingsport, TN
Posts: 1,515

The service reminder could be reset using the OBDI plugs under the hood. After that was removed, then it was no longer possible to reset it without dealer tools. OBDII scan tools that I have won't reset it.

Volvo still provides owner's manuals at Winter mode is a push button. If it doesn't move, it's probably got a spilled Dr. Pepper in it acting as glue. The owner's manual does a surprisingly honest job of describing winter mode:
* In position D, the gearbox starts in 3rd gear and changes up to 4th gear.
* In position 3, 2nd gear is locked and there is no change up to 3rd gear.
In position L, 1st gear is locked.
* These positions always offer the kick-down function.

Last edited by firebirdparts; 01-24-2018 at 10:08 AM.
Old 03-01-2018, 11:56 PM
davejack's Avatar
Junior Member
Join Date: Nov 2017
Posts: 1

Some article at Auto Repair Technician Home talk about service reminder reset
Old 03-02-2018, 07:07 PM
Join Date: Mar 2012
Location: Ridgefield, CT
Posts: 4,792

what year is your 850? In the 93-95s you can do it via the OBD1 diagnostics port. Check out for instructions

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