AI Damage2020 Chevrolet Tahoe: common problems
Owners of the 2020 Chevrolet Tahoe filed 57 complaints with NHTSA, most often about powertrain and engine. The maker issued 793 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 57
- involving a crash
- 4
- Technical service bulletins (TSB)
- 793
What fails most often
- 1 Powertrain 25% of all complaints
- 2 Engine 25% of all complaints
- 3 Electrical system 21% of all complaints
- 4 Service brakes 11% of all complaints
- 5 Steering 11% of all complaints
- 6 Air bags 7% of all complaints
- 7 Fuel/propulsion system 5% of all complaints
- 8 Tires 4% of all complaints
- Powertrain: 14 complaints (25% of all); manufacturer bulletins for this component: 103.
- Engine: 14 complaints (25% of all); manufacturer bulletins for this component: 73.
- Electrical system: 12 complaints (21% of all); manufacturer bulletins for this component: 161.
- Service brakes: 6 complaints (11% of all); manufacturer bulletins for this component: 22.
- Steering: 6 complaints (11% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 15.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 5.3 L · petrol · 8 cylnamed in 1 complaints
- 6.2 L · petrol · 8 cylnamed in 3 complaints
- automatic, 6-speed
- automatic, 10-speed
Drive: RWD, 4WD
Symptoms owners describe
How many of the 57 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Powertrain | 14 | 0 | 103 |
| Engine | 14 | 0 | 73 |
| Electrical system | 12 | 0 | 161 |
| Service brakes | 6 | 0 | 22 |
| Steering | 6 | 1 | 15 |
| Air bags | 4 | 3 | 8 |
| Fuel/propulsion system | 3 | 0 | 6 |
| Tires | 2 | 1 | 21 |
| Suspension | 2 | 0 | 20 |
| Vehicle speed control | 2 | 0 | 2 |
| Seats | 1 | 0 | 6 |
| Equipment | 0 | 0 | 223 |
| Engine and cooling | 0 | 0 | 137 |
| Structure | 0 | 0 | 40 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The contact's brother owned a 2020 Chevrolet Tahoe. The contact stated that while his brother was driving at an undisclosed speed, the vehicle crashed; however, the contact was unsure what the vehicle had crashed into.
During a left turn at roughly 15-25 mph the entire tire separated from the rim on the rear passenger wheel. The tire is in a secure location and can be inspected if needed. This led to an accident. There were no warning indicators such as low pressure indicators.
There was no reported fire. The air bags failed to deploy. The vehicle was towed to a tow lot. The vehicle was towed to an independent mechanic where informed the air bag bracket was bent or broken. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified.
The vehicle's air bags did not deploy. The vehicle was towed and had not been deemed totaled as of yet. A police report was filed. The contact received injuries to the head and knees.
Once on, it asked me to roll down my passenger side window and roll it back up. I thought that was odd, but did so. My vehicle had completely reset. The clocks were not correct and none of our controls were set. I reset everything, but thought that was weird.
My transmission failed, yes it is available for inspection. The failure occurred without warning. I was driving my truck on the highway, suddenly it began to hesitate and making a loud winding out noise. The truck was hesitate on going forward.
My check engine light is on and the code its throwing is to replace transmission valve body assembly. My Tahoe is shifting very harshly when driving normally, it feels like it slams into gears causing the whole car to jerk.
Tahoe transmission failed with 103,000 miles… took to Chevrolet they confirmed, took to a transmission specialist they confirmed failure but they said the computer was throwing weird codes and they believe this has a factor in transmission issue.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 816 of 2,102 model years in the NHTSA data (top 39% most complained about).
On average one model year of the Tahoe has 143 complaints (12 years in the data). This year has 57, below average.
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance
- PI to help diagnose A/C concern
- This PI provides diagnostic tips for diagnosing electric trailer brakes issues
- This Preliminary information communicates direction to find information at www.gmupfitter.com for Police…
This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles.
- This preliminary information communicates information about how to determine if a wheel and tires size…
- This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a…
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic…
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
- This preliminary information communicates an issue with aftermarket LED headlights causing IPC warning…
This preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL along with several low speed lan DTCs.
- This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered…
This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.
- This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic…
- This Preliminary information communicates a diagnostic tip for an issue where the starter stays engaged…
This Preliminary information communicates a diagnostic tip for an issue where the starter stays engaged after the engine starts. Dealers are to suspect/monitor the crankshaft position sensor.
NHTSA lists 793 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2020 Chevrolet Tahoe?
Owner complaints to NHTSA most often mention: powertrain, engine, electrical system. Total complaints: 57. The most frequent symptoms in complaint texts: warning lights, check engine (28%), engine failure or replacement (9%), hesitation when accelerating (7%).
How many service bulletins (TSB) were issued for the 2020 Chevrolet Tahoe?
NHTSA lists 793 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2020 Chevrolet Tahoe from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2020 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.