2020 Chevrolet Tahoe Engine Problems
- Complaints
- 14about this part
- Share
- 25%of 57 total for the year
- Median mileage
- 350miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 14 complaints about the engine of the 2020 Chevrolet Tahoe, 25% of the 57 complaints for this model year. Where a mileage was given, the median is 350 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“We are concerned that the transmission recall should be including ALL 2020 Tahoe’s. We were driving at 55 MPH and our RPM suddenly excelled and the vehicle felt like it was in neutral. This happened several times in a short distance. When we arrived home and tried to put in reverse it hesitated to move and then finally engaged. Getting it into dealership this week.”
NHTSA complaint #11640103, filed 2025-02“I was driving with my kids on the expressway about 55mph , when all of a sudden the truck went to 30's mph stayed on the 1st gear and did not want to go further from there, and another vehicle almost struck me from the back but was able to swerve me the check engine light also popped out of nowhere. The truck kept staying there on 1st gear, So i had call someone to come pick it up where I was at. …”
NHTSA complaint #11586931, filed 2024-05“I was at a red light and when I tried to take off the RPMs reeved up and my car would not move so I turned it off, opened and shut my door, restarted my car and it would move 100yds if that, then the RPMs shot up again (acted like it couldn’t shift out of first gear). Car has 101,647 miles, was serviced on time, no issues before and no warning lights on the dash came on before or after the issue happened. Car has not been repaired yet and still no lights on the dash.”
NHTSA complaint #11634899, filed 2025-01“I was driving in traffic with 8 kids from my football team on a busy street and my truck start jerking and wouldn’t accelerate much. I was going 35 mph and the truck just slows down in the middle of driving. Then as I pulled over thick white smoke comes from the tail pipe. Thank god it was a Sunday and the busy street wasn’t as busy and I was able to pull over safely because this happen while I was driving. I got the truck to autozone and they gave me a misfire code in cylinder 1. …”
NHTSA complaint #11693292, filed 2025-10“We have the L86 6.2L EcoTech 3 Engine. at 85,000 miles we noticed the oil pan is leaking and rear main seal is leaking. Both are common issues with the L87 engine as well.”
NHTSA complaint #11709678, filed 2026-01Related service bulletins
- 11024330Sep 6, 2025This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
- 11026017Jun 5, 2025This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- 11024485May 15, 2025The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 11020254May 7, 2025This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in…
- 11019503Apr 18, 2025This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California…
- 11017263Mar 25, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11016942Mar 4, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014233Jan 30, 2025This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 11013269Jan 16, 2025This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 18 | 64% |
| 2025 | 31 | 60% |
| 2024 | 24 | 35% |
| 2023 | 127 | 55% |
| 2022 | 75 | 38% |
| 2021 | 169 | 37% |
| 2020 | 14 | 25% |
| 2019 | 32 | 29% |
| 2018 | 20 | 19% |
| 2017 | 27 | 15% |
| 2016 | 19 | 7% |
| 2015 | 46 | 7% |
| 2014 | 2 | 2% |
| 2013 | 13 | 6% |
| 2012 | 9 | 5% |
| 2011 | 11 | 2% |
| 2010 | 11 | 4% |
| 2009 | 14 | 5% |
| 2008 | 27 | 5% |
| 2007 | 58 | 5% |
| 2006 | 2 | 2% |
| 2005 | 13 | 4% |
| 2004 | 26 | 6% |
| 2003 | 9 | 2% |
| 2002 | 7 | 2% |
| 2001 | 3 | 1% |
| 2000 | 3 | 1% |
| 1999 | 1 | 0% |
| 1998 | 1 | 0% |
| 1997 | 1 | 0% |
Other parts of the 2020 Chevrolet Tahoe
14 complaintsElectrical system
12 complaintsBrakes
6 complaintsOther or unknown
6 complaintsSteering
6 complaintsAir bags
4 complaintsFuel system
3 complaintsSuspension
2 complaintsTires
2 complaintsVehicle speed control
2 complaintsSeats
1 complaints
← All problems reported for the 2020 Chevrolet Tahoe
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology