Why does my Volvo say transmission service required?
Service history unknown. I have an issue with the transmission, namely that I have an error message stating ‘Transmission service required’ with an accompanying orange engine service light. The transmission is fine for about 10 or fifteen miles then reverts to a ‘dash’ instead of the gear reading ‘D’rive, ‘4’fourth, ‘N’eutral etc.
What does transmission service required warning light mean?
Service message measures fluid wear (among other issues). It’s about same thing as towing – only instance Volvo recommends replacing the fluid at specific intervals. Fluid is Toyota Type IV from Toyota dealer, 12-15 qts for a full DIY flush – look up Youtube
Is it too late to change my transmission fuid?
Fluid is Toyota Type IV from Toyota dealer, 12-15 qts for a full DIY flush – look up Youtube Is it too late to change my transmission fuid? My reputable volvo mechanic says it is too late. Fluid is dark / has shavings. He says doing so will likely render the car undrivable.
What does a high altitude transmission warning light mean?
High altitude means you are climbing/heating up the transmission fluid. Heating up the fluid causes it to degrade. Service message measures fluid wear (among other issues). It’s about same thing as towing – only instance Volvo recommends replacing the fluid at specific intervals.
When does the transmission go to fourth gear?
The transmission is fine for about 10 or fifteen miles then reverts to a ‘dash’ instead of the gear reading ‘D’rive, ‘4’fourth, ‘N’eutral etc. If in ‘D’rive this generally leaves me in fourth gear as it seems to usually downshift to fourth from Drive, but not always.
What to do if your transmission is bad?
If you remove the TCM and clean the terminals with electrical contact cleaner, and work the latch back and forth several times to scrape off the oxidation, function will be restored at least temporarily. Another possibility is a bad PNP switch on the trans.
How can I restore the transmission in my Volvo?
Unfortunately you need a special tool to operate the violet plastic sliding cal latched that retain the TCM in the box. If you remove the TCM and clean the terminals with electrical contact cleaner, and work the latch back and forth several times to scrape off the oxidation, function will be restored at least temporarily.
Why does the TCM Transmission Control Module go to the dash?
What you are describing sounds like a network communication failure. The TCM transmission control module is on a digital communication network wit several other modules in the car. When the dashboard display goes to a dash, this is usually a sign of this.
Why does my transmission go into limited function mode?
When the dashboard display goes to a dash, this is usually a sign of this. Without communication to and from the engine, ABS, instrument cluster, etc, the TCM and Central Electronic Module go into a limited function mode. If you read the ECM and TCM codes and find one in the TCM complaining of no network communication, this would be confirmed.
How does the Transmission Control Module work in a Volvo?
The TCM transmission control module is on a digital communication network wit several other modules in the car. When the dashboard display goes to a dash, this is usually a sign of this. Without communication to and from the engine, ABS, instrument cluster, etc, the TCM and Central Electronic Module go into a limited function mode.
Is there a way to reset the Trans TCM?
The trans TCM also has a Fluid Counter Reset built into the software interface so it can re-adapt to new fluid. The dealer would have done this for you. Vida/Dice setup can do it for you if you purchase. If this is beyond your abilities try and find an independant Volvo repairer that can do the same thing at lower cost.
Is there an issue with my Volvo S60 T20 automatic?
Volvo S60 T20 automatic, 2002 with 115,000 miles covered. Service history unknown. I have an issue with the transmission, namely that I have an error message stating ‘Transmission service required’ with an accompanying orange engine service light.
What is the fault code for a Volvo transmission?
Common fault codes are TCM-002A, TCM-002B, P0733, P0734. If your Volvo transmission hesitates to shift gears, it bangs into gear; the problem could be the B4 servo.
How to check the transmission fluid in a Volvo?
Here are instructions on how to check Volvo transmission fluid level. Drive the car for at least 15 minutes. Manually shift the gears between 1, 2, 3, 4, 5 during your warm-up drive. Park the car on a level surface. Set the parking brakes and place the shifter in Park.
Can a transmission filter be changed on a Volvo?
Change transmission fluid and filter Even though Volvo may state transmission is sealed for life, you can extend the life of your transmission by doing a transmission filter and fluid change. Doing transmission service will often improve the shifting quality. Make sure to use the recommended Volvo transmission fluid.
How often should you change the transmission fluid in a Volvo?
Even if your Volvo owner’s manual states that the transmission fluid is sealed for life, our recommendation is to change the transmission fluid and filter every 60,000 miles. Volvos may develop hard shifting or slippage due to the Transmission Control Unit (TCU) software issues.
What causes hard shifting between gears in a Volvo?
Update TCM Software If you are experiencing hard shifting between gears, it could be caused by Transmission module software. This was a widespread problem in many Volvos from 2001 until 2007. The good news is that a simple software update performed by your Volvo dealer can often fix your hard shifting issues.