Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

NHTSA — Vehicle Speed Control Problems


really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
49,581 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Jaguar XJ8 engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2004 Jaguar XJ8:

Unsubscribe any time. We don't sell/share your email.

2004 Jaguar XJ8 Owner Comments

problem #8

Dec 182014

XJ8 8-cyl

  • 77,560 miles


While proceeding to park in the driveway, the vehicle experienced a sudden acceleration and forcibly struck another vehicle that was parked in the garage. During this incident the driver had no control of braking or steering. The impact was severe enough to cause the airbag to deploy and sustain major damage to both vehicles.

- Vicksburg, MS, USA

problem #7

Dec 212011

XJ8 8-cyl

  • 97,500 miles
An incident with the vehicle occurred sometime around christmas 2011. The motor surged while I was fully stopped at a street light. The motor was running, the car was in drive gear, and my foot was on the brake. I was able to quickly bring the car under control. A second event occurred in 2012, May 15th, at 11:00 P.M. while I was fully stopped at a drive through window. Again the motor surged, this time with a loud screeching sound. I applied maximum brake pressure but the car continued to surge forward, approximately six feet. I sustained full force pressure to the brake, threw the car into neutral gear, and turned off the ignition in order to stop the car. I immediately drove it home where it has remained parked---except for two Excursion to the sacramento Jaguar dealership service department.

- Sacramento, CA, USA

problem #6

Apr 112011

XJ8 8-cyl

  • 115,000 miles
The contact owns a 2004 Jaguar XJ8. The contact stated that the vehicle exhibited abnormal acceleration three times when applying the brakes. In order to stop the acceleration, the vehicle was shifted into neutral. The vehicle was not inspected for the failure and was no longer being driven. The failure and current mileage was 115,000. Updated 11/16/11

- Freeport, FL, USA

problem #5

Jul 062010


  • 73,000 miles


While driving on 95 South in ri at approx. 60mph, my 2004 Jaguar XJ8 suddenly lost all power, including engine, steering and braking abilities. It nearly resulted in a multi car fatal accident from being hit from behind. The dealer stated, after a systems check, that an accelerator pedal sensor had failed resulting in a $500 replacement cost. This is a very dangerous defect that should have been part of a safety recall.

- North Kingstown, RI, USA

problem #4

May 252010


  • Automatic transmission
  • miles
2004 Jaguar XJ8. Consumer states unintended acceleration the consumer stated while approaching a four-way stop, he began to slow down. He was driving slowly, when he removed his right foot from the accelerator and began to press down on the brake pedal. Instead of the vehicle gradually slowing down, the engine raced to an extremely high RPM. He pressed further on the brake, but the vehicle lunged forward about 30 feet before stopping just short of a truck crossing in the intersection. The same situation happened again in a parking lot which caused the consumer T run up on a concrete stop almost striking a pedestrian. When the consumer arrived home later in the evening, there was a recall notice in the mail and he immediately took the vehicle to the dealer. The dealer checked for the recall and the problem, but they were unable to find anything wrong. The same incident happened again where the consumer almost hit a vehicle approaching from his left. A notification light illuminated which read dsc not available. In each instance, the consumer was traveling no more than 5 to 10 mph. 8jb

- Barrington, IL, USA

problem #3

Dec 152007

XJ8 8-cyl

  • Automatic transmission
  • 29,450 miles
I was braking into a parking spot at the bank when without notice my vehicle accelerated wildly. I pressed on the brake with all of my weight to stop from literally ramming my vehicle into the side of the bank. The roar of the transmission was like someone was stepping full force on the gas pedal, but my foot was solidly on the brake and not even touching the gas pedal. It was terrifying. If there happened to be someone walking on the sidewalk in front of me, I would have hit them. I wouldn't have been able to avoid it. As it was, the only way I could stop the car from driving forward was to shift the car into park and then turn it off. After waiting a while, I restarted the car and cautiously drove home without further incident. This problem with sudden acceleration is so serious. It's only a matter of time before someone is seriously injured or killed....please look into it!

- Prior Lake, MN, USA

problem #2

Dec 292007

XJ8 8-cyl

  • Automatic transmission
  • miles
While stopped at a red light, foot on brake, shift in drive, vehicle went into very high rate of acceleration and lunged uncontrollably forward. Luckily there was no vehicle in front of me as I would have crashed into it. I notified the dealer and he referred me to a local dealer. The vehicle was inspected and I was assured that they found nothing wrong. This was a very scary situation and the manufacturer should seriously look into the matter.

- Delray Beach, FL, USA

problem #1

Feb 052005

XJ8 8-cyl

  • Automatic transmission
  • 4,141 miles
While parking the vehicle it accelerated. Consumer turned the vehicle off to stop. At the second occurrence consumer was at a complete stop when the vehicle accelerated causing it to strike the vehicle in front. Dealer was unable to find any defects.

- Arlington, VA, USA

Not what you are looking for?