Software problems of the 1999 Volvo S80

Three problems related to software have been reported for the 1999 Volvo S80. The most recently reported issues are listed below.

1 Software problem

Failure Date: 03/23/2009

The contact owns a 1999 Volvo S80. The vehicle shut off in the middle of the road while traveling at an unknown speed. There was no power and the vehicle failed to move when the accelerator pedal was depressed. The contact must wait for a couple of minutes and then depress the accelerator pedal before the vehicle would start. The dealer stated that the failure was due to the electronic throttle system software. The Volvo manufacturer stated that they would not repair the vehicle because it was out of warranty. The failure mileage was 118,000.

2 Software problem

Failure Date: 03/20/2007

The contact owns a 1999 Volvo S80. While driving 55 mph, the check engine light illuminated with a message stating "transmission service urgent". The dealer stated that the valve body was faulty and there was mechanical failure with the transmission. The vehicle has not been repaired and the check engine light remains illuminated. The contact felt there may be a defect with the software. The current mileage is 100,255 and failure mileage was 99,769.

3 Software problem

Failure Date: 11/25/2002

While driving, I suddenly lost power/acceleration in my vehicle. My check engine light also came on. I turned the car off, but could not restart it. My vehicle was towed to my local Volvo dealership. Diagnosis - replace throttle body and download software (etm). Because my vehicle was past the original manufacturer's warranty, I had to pay for the reparis since the extended warranty did not specifically list these defects . . . $815 parts and labor. Approximately 1 year 3 months later, I began experiencing the same problems as in 2002 which Volvo diagnosed as a throttle body failure; however I have have been able to start my car, but with some trouble. Non-warranty repairs are covered for only 1 year. I called the warranty company to see if they could help me out. The warranty company knew of the defect from previous other complaints, and they told me to try to work out a deal with Volvo (which didn't happen). On September 11, 2002, I took my vehicle into Volvo because my engine fluctuated while idling. The interior lights flickered as the idle surged. Volvo diagnosed the problem as an ignition coil failure. Parts and labor cost me $250. I took the car in again on September 16, 2002 (5 days later) with the same problem. I requested a fuel filter check/replacement, but Volvo diagnosed the problem with the throttle body. The checked and cleaned the throttle body. This happened, of course, just 2 months before complete failure of the throttle body. I've spent over $1000 for mis-diagnosis and an defective part that Volvo and their warranty company have known about for several years.




Safety Ratings of S80 Cars
Fuel Economy of S80 Vehicles
S80 Service Bulletins
S80 Safety Recalls
S80 Defect Investigations