2017 CHEVROLET SUBURBAN Complaints

There is no Brake assist at low speeds. Vacuum pump seems not to be functioning. Hard pedal hard to stop at parking lot speeds.

Vehicle brake pedal goes to floor while running 35 MPH or slower at times! I am a mechanic and feels like brake assist system is failing (brake pump)but not all the time! I took to dealer and they could not reproduce problem so sent me on my way. This is a large heavy 8 passenger vehicle and my wife’s so she is scared when this occurs and is now afraid to drive it. This was a $66,000 vehicle that has 64,000 easy highway miles on it and is in mint condition. I ran my vin and there is no recalls on the vin but still has a brake problem. I have all new brake pads and rotors front and rear I do myself as I am a over 30 year mechanic. This is a safety brake issue as I’ve had it happen to me and my wife and it scares you because it takes longer to stop when it occurs!

I brought my vehicle to Chevy dealer and I told service advisor something is wrong with brakes and/or brake assist. The brake pedal feels really stiff at low speeds. After dropping off keys with service advisor at Puyallup WA Chevy Harnish Auto Family I told them it might be something related to brake booster so something vacuum. After waiting for technician to diagnose the service advisor told me it was the vacuum pump and luckily it was covered under warranty.

The condenser has a faulty design and cracks, causing it to leak flammable R1234YF coolant in the engine bay. Additionally, this leak causes the AC system to stop cooling, thus making the inside of the vehicle a very dangerous place, particularly during summer months, as it is impossible to cool. There are thousands of reports of this issue on all Chevy/GM models between 2015-2020 including tahoe, silverado, suburban, and yukons. The manufacturer has put out a "special coverage 17336" adjustment but it only covers the vehicles up to 60,000 miles and because it's not part of a recall it's not automatically sent out to the owners of the vehicles. Further, a large number of vehicles are well beyond the 60,000 mile limit in the special coverage before the owner ever learns of the issue. According to SAE J1739, "Manufacturers must conduct Failure Mode and Effect Analysis (FMEA) as provided in SAE J1739 (adopted 2009). Manufacturers must keep the FMEA on file for at least three years from the date of creation." I would challenge that chevrolet did not do this FMEA testing or did not do it per standard as it would have shown this issue. Instead they moved forward with production affecting hundreds of thousands of their most popular vehicles from 2015-2020 and resulting in the consumer having to pay an average of $1100 in repair costs due to a known defect from the manufacturer.

The entire electrical system shuts down including lights while driving down the road. No driving light or display at night for about 30 seconds then come back on. System also loses all displays on dash during the day as well.

Service Brake Assist comes in at random times. Brakes seem unresponsive while in reverse or at slow speeds. Brakes become muddy and non responsive. Very to maneuver. Have had several near misses in parking lots. Never seen this issue with any vehicle ever before.

While driving the cars loses all power and you can’t steer. It used to only happen when turn at a slow speed. And now when you’re driving it matter what speed it shuts off and you lose all power. Nothing comes up for service on diagnostic it is very dangerous I have a family have sex and no one can find out what’s wrong with it

Transmission failure at 66,909 miles on 5/19/21. Dealership has original replaced transmission. Our safety was put at risk by breaking down and not being able to move vehicle to a safe location. Advised by service agent at dealership that a lot of 2017 Chevrolet suburban transmissions have had problems. The problem was confirmed by dealership and a remanufactured transmission was installed. I have invoice from dealership describing issue and work done. No warning lamps or messages advised of the problem. Slight Transmission slippage started on 5/18/21 complete failure the next day.

GM has a special coverage TSB for A/C issues relating to a condenser unit and leakage of refrigerant. My 2017 Chevy Suburban has had the same issue just occur at 68,000 miles. Complete loss of A/C. After researching online, this is a VERY common problem. Most instances are just outside of the manufacturer warranty as well. Special Coverage TSB No. 17336-04 covers this issue for specific VIN numbers based on where they were manufactured. Regardless of where manufactured there are MANY other vehicles having the same issue. PLEASE INVESTIGATE. As it is just now getting extremely hot in Georgia, there is no telling how long this has been an issue. And of course, I will need to have the A/C fixed long before any action is realized from this submission.. Hopefully other will benefit from the post!! Thanks for you help and consideration.

STUCK IN DRIVE GEARS. GEARS WILL NOT SHIFT. BRAKE PEDAL STUCK. OCCURRED SUDDENLY WITH WARNING. VERY DANGEROUS. PREVIOUSLY THE VEHICLE BRAKES PEDAL WAS STUCK IN THE UPWARD POSITION. WOULD NOT GO DOWN. HAD TO FIX IT . CHEVY IS NOT TAKING RESPONSIBILITY. THIS IS LIFE THREATENING.