10.0

really awful
Crashes / Fires:
4 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
4,201 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.

2020 Jeep Grand Cherokee engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2020 Jeep Grand Cherokee:

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

2020 Jeep Grand Cherokee Owner Comments

problem #11

Jul 302023

Grand Cherokee

  • 35,800 miles

A D V E R T I S E M E N T S

The contact owns a 2020 Jeep Grand Cherokee. The contact stated that while driving forward into a parking space the brake pedal was hard when pressed and the vehicle suddenly experienced unintended acceleration and crashed to the side of a building. After the incident it was discovered that the front brakes had siezed and the vehicle was undrivable. The contact indicated the during the crash the collision avoidance feature did not active. The vehicle was towed to the local dealer. A police report was taken at the scene. No injuries were reported. Manufacturer was notified of the crash and a engineer was sent to examine the vehicle. No further information was available. The failure mileage was 35,800.

- Sicklerville, NJ, USA

problem #10

Jan 022022

Grand Cherokee

  • miles
Hello dear-??.I suffer from a problem when I-??m driving my truck and it-??s as follows: when the gear is on D and my truck stopped, and I stomp the gas pedal with a little force my truck keep going I can-??t stopped for 40 seconds after which return to the normal driving state, this situation happened to me 5 times, I don-??t know if the speed control cable can interfere with the speed control servo pulley and not allow the throttle to return to idle when disengaging the speed control (a stuck throttle could result)..,,

- Dearborn Heights, MI, USA

problem #9

Sep 012021

Grand Cherokee

  • miles
The vehicle starts jerking at a high rate of speed that become dangerous. Often times the vehicle will shut off on its own. Also the unconnect system goes out a lot. Another problem going wrong with the jeep is that the back window Always makes noise as if it would crack or something.

- Cleveland , OH, USA

problem #8

Jun 012021

Grand Cherokee 8-cyl

  • 4,000 miles

A D V E R T I S E M E N T S

The contact owns a 2020 Jeep Grand Cherokee. The contact stated that after refueling and attempting to drive out of the service station, the vehicle independently accelerated to 60 mph. The contact was able to shift into neutral and drove the vehicle into a field and the vehicle returned to normal function. Additionally, the gear shifter was not operating as intended. The vehicle was towed to the dealer to be diagnosed. The mechanic located the wiring that failed and was able to return the vehicle to normal function. The contact also wanted to state that the dealer was unable to specify what caused the vehicle to independently accelerate. The gear shifter was repaired. The manufacturer was made aware of the failure. The failure mileage was 4,000.

- Ranchos De Taos, NM, USA

problem #7

Dec 012020

Grand Cherokee

  • 1,800 miles
Purchased new in September. Currently has 2100 miles. Cruise control "sticks" and fails to disengage at the controls. When the accelerate control is depressed and released, the vehicle will continue to accelerate without capping the increase in acceleration until the system is disengaged with the brake pedal. Very dangerous! this scenario occurs both at lower and higher speeds over 55.

- Aurora, IL, USA

problem #6

Sep 292020

Grand Cherokee

  • 400 miles
Holding the "+" button down for more than a split second causes the speed to quickly increase in 5 mph increments. While driving on the interstate at 65 mph, I pressed the "+" key and within seconds the speed control setting jumped to 95 mph. I hit "cancel" as fast as I could. In Jeep's 2017 and 2019 models that I owned the speed increased gradually when the "+" key was depressed. Th selling dealership checked out the vehicle and reported to me that it was working as designed. See attachment.

- Wendell, NC, USA

problem #5

May 112020

Grand Cherokee 6-cyl

  • 2,011 miles

A D V E R T I S E M E N T S

Was pulling into shop on nice sunny day. I turned taking a right off road and some lady swerved right off road and hit me doing 50mpg. This caused me to go forward in vehicle and accelerate at a high speed. I then hit a metal carport which crashed on my roof. Busted sunroof, hit side of brick wall on passenger side and then went down into a steep ditch and partially back up. None of the airbags deployed. I did see one black oval shaped airbag behind the front driver tire afterwards. Jeep was totaled. Front end was demolished looked like a big mouth. Both wheels were turned in and busted. It was crushed.. sides were completely dented in. Not sure if I accelerated or the vehicle did on its own as I have no recollection. Notified Jeep they sent someone out to do a report as I was injured.

- Troy, NY, USA

problem #4

Mar 172020

Grand Cherokee

  • 1,100 miles
The contact owns a 2020 Jeep Grand Cherokee. The contact stated that while driving at various speeds with the cruise control activated, the vehicle rapidly accelerated after tapping the plus sign button on the steering wheel without warning. The contact depressed the brake pedal to deactivate the cruise control. Dan welle Chevrolet Buick, Chrysler Dodge Jeep Ram located at (1505 main St S, sauk centre, mn 56378) and juettner motors located at (1900 broadway St, alexandria, mn 56308) were contacted and the contact was informed that the cruise control feature operated as intended. The manufacturer was also notified about the failure and referred the contact to the local dealer for assistance. The vehicle was not repaired. The failure mileage was 1,100.

- Graceville, MN, USA

problem #3

Jan 042020

Grand Cherokee

  • 250 miles
When using the rear park assist, with my foot completely off the accelerator, the vehicle has spontaneously accelerated while going in reverse, requiring me to hard break to avoid collision. This has happened multiple times.

- Phoenix, AZ, USA

problem #2

Jan 062020

Grand Cherokee

  • 350 miles
With my foot completely off the accelerator, the vehicle spontaneously accelerates under certain conditions. While in standard or sport mode, in second gear going about 20mph, there is a reproducible RPM surge that causes the vehicle to lunge forward. This somewhat feels like being rear ended.

- Phoenix, AZ, USA

problem #1

Dec 042019

Grand Cherokee

  • 500 miles
I was slowly backing into a driveway when the Jeep Grand Cherokee suddenly accelerated on its own. I repeatedly hit the brake pedal but the Jeep wouldn't stop; instead it kept going faster. It smashed into the garage door and the brick wall of the garage, demolishing them. The Jeep was brand new with only 500 miles driven, and it was equipped with a complete safety package that should have automatically stopped it before an impending impact but it did not do so. This was an extremely terrifying experience and it felt like a nightmare.

- Deerfield, IL, USA

Not what you are looking for?