What 47 owners told NHTSA about the 2018 Volvo XC90 T5

3 weeks ago we had the transmission module fail on our vehicle while it was being driven. According to Volvo forums, this is a multi-model year, multi vehicle issue for those with sunroofs. Accrding to the dealer in our case, the seal failed, and water runs into the compartment where the transmission module is located, causing it to fail. We had it happen twice, and both times on the highway, with the engine running ragged causing it ot accelerate and then quickly decelerate. There were 3 warnings that popped up-"Gear lever locked," "transmission acceleration performance reduced," and "Parking Brake unaavialble." It happened twice and and was towed to the dealer both times, as it was not drivable-once the vehicle was parked it would no longer move out of park. The first time the diagnosis and module reset was comped by the dealer (Borton Volvo, Golden Valley, MN) and the second time, the transmission module was "dried out," and the sunroof seal was replaced, which was just under $700. It is available to be inspected if necessary. The vehicle was a hazard to others on the road while it was "acting up." Dealer was familia with the issue. No inspection was done other than by the dealer Warning lamps as outlined above

NHTSA ODI 11676768

The car starting leaking water into the rear view mirror in June. This wouldn’t be much of an issue, but the cars computer system for drive assist is located in this area and has caused the car to malfunction in all areas. This XC90 pilot assist is now malfunctioning causing a huge safety issue. This is apparently a known problem with their cars with the panoramic sunroof, but is now a safety hazard. The Volvo dealership did not fix the issue and is now happening again effecting all of the electrical system.

NHTSA ODI 11499816

CAR SUDDENLY ACTIVATED THE BRAKES, BRINGING IT TO A FULL STOP FROM 35MPH. IT WAS ON A CITY STREET. THERE WAS A 3-WHEELED MOTORCYCLE APPROACHING IN THE ONCOMING LANE, BUT IT WAS CENTERED IN ITS LANE, WITH NO RISK OF COLLISION. WE WERE APPROACHING AN UNCONTROLLED INTERSECTION (NO SIGNAL, NO SIGNS) WHEN IT OCCURRED. THE CAR STOPPED SO SUDDENLY THAT THE SHOULDER HARNESSES CAUSED SOME DISCOMFORT. HAD ANYONE BEEN FOLLOWING AT A CLOSE DISTANCE, A REAR-END COLLISION WOULD HAVE BEEN LIKELY.

NHTSA ODI 11415659