Cadillac srx rear end noise

i have a Cadillac srx, my 3rd row is now coming up can you help me. i tried the buttons, they make a beeping noise but the seat doesn't come up

Ring and pinion gear mesh in rear end

Try jump starting it from another car. or that thing should have a volt gauge while trying to crank it if it drops lower then 11volts it wont start. or if you can hook up a volt gauge to the battery if not just try jump starting it.

Try getting on an open road, get up to about 45 MPH or where ever the noise is loudest. Put the car in neutral and turn the engine off. You can roll in a straight line for a long time. Make sure nodody is around you. If the sound stops when the engine is off, then the noise is coming from the motor. If the sound is still there, its got to be coming from the tires. Id guess a wheel bearing.

Grinding on acceleration, rhythmic thump on the highway... might be a bad u-joint in a CV shaft or rear drive shaft. Put the transmission in neutral, put blocks in front of the front wheels jack up the back end of the vehicle and put jackstands under the frame (do not rely on the jack alone to hold it up!). Turn the rear wheels by hand while listening and feeling for slop or roughness. Crawl under the vehicle and check for play in the drive shaft bearings, then rotate the drive shaft by hand to check for rough bearings in the u-joints. Inspect the fender wells and suspension linkage for foreign objects that may be rubbing or bumping on the wheels. Inspect the tires for uneven wear, incipient blowouts (blisters) or other problems.
If you don't find anything in the rear end, lower the vehicle, block the rear wheels, jack up the front, and repeat the check on the front wheels.
Check your transmission fluid as directed in the owner's manual. It should be at the proper level and clean, with no burned odor. If there is a problem with the transmission fluid, the noise could be coming from the transmission.

Pls sent it to me, if u re tire of it.

Jack up each wheel and spin it by hand. When you hear that noise that will be a very worn wheel bearing on that wheel that needs to be replaced

you need to replace fuel pump its located behind rear seats

Have the fuel pump tested sounds like it is not working as it should. It may be able to be repaired but most likely you will need it replaced this will sort out your issue. Raz,....

The pinging noise that you hear is detonation occuring in one or more of the cylinders. The dealer suggested to move to a higher octane inorder to prevent this because the higher the octane the higher the prevention of Detonation.

The Probable cause of the pinging, would be that you refilled with a bad batch of gasoline. Premium should be used in this vehicle no matter what. Due to the clearances of the heads and valves in the motor. And also due to the material used to make the cylinder heads, if severe detonation occures then the valves could be damaged.