2020 Chevrolet SUBURBAN

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2020 Chevrolet SUBURBAN has 60 owner complaints filed with NHTSA — that's 0.8x the segment average of 80. The most common issue is engine problems (25% of all complaints), specifically: the contact owns a 2020 chevrolet suburban. the contact stated that while operating the vehicle a banging noise was present coming from the engine compartment. additionally, while driving, the cluster gauges and the air conditioning malfunctioned. the vehicle was later examined by an independent mec. ⚠️ 1 fire report filed.

1 fire report 2 crash reports

Total Complaints

Recalls Issued

—/5

Safety Stars

0.8x

vs Segment Avg

Known Problems

ENGINE

15 complaints

25%

• The contact owns a 2020 Chevrolet Suburban. The contact stated that while operating the vehicle a banging noise was present coming from the engine compartment. Additionally, while driving, the cluster gauges and the air conditioning malfunctioned. The vehicle was later examined by an independent mec
• The water pump burst without any warning.
• Fuel injector failed and pumped too much gas into cylinder causing gas to get into engine oil and ruin engine. GM claims they are building the replacement engine, but won't give any estimate of when it will be fixed. Other dealers that are receiving these engines will not sell the engine to my deale

Typical onset: 50K miles Est. repair: $500🔥 1 fire reports

“The contact owns a 2020 Chevrolet Suburban. The contact stated that while operating the vehicle a banging noise was present coming from the engine compartment. Additionally, while driving, the cluster gauges and the air conditioning malfunctioned. The vehicle was later examined by an independent mec”

— NHTSA complaint filing

TRANSMISSION

10 complaints

17%

• INTERMITTENTLY, WHILE ACCELERATING, A JOLT IS FELT EMANATING FROM THE RIGHT HAD SIDE, POSSIBLY TOWARD THE FRONT OF THE VEHICLE, WHEN THE AUTO FEATURE OF THE 4 WHEEL DRIVE IS ENGAGED. THIS OCCURS AT SPEEDS OVER 50. WHAT IS DESCRIBED IS AN ONGOING PROBLEM, SINCE THE VEHICLE HAS BEEN PURCHASED. NO
• I had to replace my rear differential due to grinding and metal shavings in the rear end. Recently had to take my truck in for repairs due to the motor mounts breaking. Discovered the front differential is also damaged with metal shavings due to grinding. The auto shop reached out to the local Chevy
• Engine making ticking on passenger side when first started in the morning. Service bulletin is out but dealers are not doing a recall. Engine can fail while driving from this if it gets worse. GM admitted problem in Service Bulletin No 19-na-218 lifter and push rod failure is the problem.

Typical onset: 50K miles Est. repair: $500

“INTERMITTENTLY, WHILE ACCELERATING, A JOLT IS FELT EMANATING FROM THE RIGHT HAD SIDE, POSSIBLY TOWARD THE FRONT OF THE VEHICLE, WHEN THE AUTO FEATURE OF THE 4 WHEEL DRIVE IS ENGAGED. THIS OCCURS AT SPEEDS OVER 50. WHAT IS DESCRIBED IS AN ONGOING PROBLEM, SINCE THE VEHICLE HAS BEEN PURCHASED. NO”

— NHTSA complaint filing

ELECTRICAL

8 complaints

13%

• 2020 CHEVROLET SUBURBAN. UPON VEHICLE START: STEERING ASSIST, TRAILER BRAKE SYSTEM, STABILITY TRACK ALL INOP. TACHOMETER AND SPEEDOMETER INOP. NO REVERSE GEAR. WHEN IN DRIVE, ONLY FIRST GEAR OBTAINABLE AND MANUAL SHIFT MODE INOP. SEAT HEAT INOP. TURNED OFF AND RESTARTED APPROX FIVE TI
• My car shut off two times while driving. When you google the issue, it auto populates meaning that this is a very common issue with GM. It starts back to 2015 searches as well. GM needs to recall their suburbans for their cars turning off while driving which caused me to lose power steering, power b
• engine replacement at 120,000 miles. I was told by Mechanic that the 2020 Suburban's have a problem with the fuel injector wiring harness dry rotting and the sensor changing the engine from V8 to V6 when on highway going bad causing misfire in engine and ruining the engine.

Typical onset: 50K miles Est. repair: $500

“2020 CHEVROLET SUBURBAN. UPON VEHICLE START: STEERING ASSIST, TRAILER BRAKE SYSTEM, STABILITY TRACK ALL INOP. TACHOMETER AND SPEEDOMETER INOP. NO REVERSE GEAR. WHEN IN DRIVE, ONLY FIRST GEAR OBTAINABLE AND MANUAL SHIFT MODE INOP. SEAT HEAT INOP. TURNED OFF AND RESTARTED APPROX FIVE TI”

— NHTSA complaint filing

STEERING

4 complaints

• 2020 CHEVROLET SUBURBAN. UPON VEHICLE START: STEERING ASSIST, TRAILER BRAKE SYSTEM, STABILITY TRACK ALL INOP. TACHOMETER AND SPEEDOMETER INOP. NO REVERSE GEAR. WHEN IN DRIVE, ONLY FIRST GEAR OBTAINABLE AND MANUAL SHIFT MODE INOP. SEAT HEAT INOP. TURNED OFF AND RESTARTED APPROX FIVE TI
• While turning at driving speed I feel as if I loose control of the steering for a split second. The front wheels feel like they begin to turn without me turning the steering wheel. This has happened at least a dozen times in the 6000 miles I have put on the car. It is extremely dangerous especially
• My car shut off two times while driving. When you google the issue, it auto populates meaning that this is a very common issue with GM. It starts back to 2015 searches as well. GM needs to recall their suburbans for their cars turning off while driving which caused me to lose power steering, power b

Typical onset: 50K miles Est. repair: $500

— NHTSA complaint filing

SPEED CONTROL

3 complaints

• WHEN ADAPTIVE CRUISE IS ENGAGED, THE SYSTEM HESITATES WHEN LEAD VEHICLES SLOWS AT A SLOW RATE (NO BRAKE LIGHTS OBSERVED ON LEAD VEHICLE), REQUIRING OPERATOR TO APPLY BRAKES. WHEN ADAPTIVE CRUISE CONTROL IS ENGAGED DURING HIGHWAY DRIVING, INTERMITTENTLY, MEDIUM SLOWING OF LEAD VEHICLE (BRAKES APP
• On October 27, coming back from a family trip at 10 PM at night on a major highway, the suburban all of a sudden quit. Traveling at 70 miles per hour, all of a sudden, when pressing the gas pedal, the car would not accelerate and the RPM gauge was erratically moving. The car started to slow down til
• Driving on interstate and gradual onset of clicking/knocking. Within 5 minutes complete loss of propulsion and throttle. RPM went to zero. Oil pressure/temperature/engine lights all fine. Dealership states "catastrophic engine failure." My family was in the vehicle. Fortunately still had power steer

Typical onset: 50K miles Est. repair: $500

“WHEN ADAPTIVE CRUISE IS ENGAGED, THE SYSTEM HESITATES WHEN LEAD VEHICLES SLOWS AT A SLOW RATE (NO BRAKE LIGHTS OBSERVED ON LEAD VEHICLE), REQUIRING OPERATOR TO APPLY BRAKES. WHEN ADAPTIVE CRUISE CONTROL IS ENGAGED DURING HIGHWAY DRIVING, INTERMITTENTLY, MEDIUM SLOWING OF LEAD VEHICLE (BRAKES APP”

— NHTSA complaint filing

Estimated Repair Costs

ENGINE(~50K mi)

$500

TRANSMISSION(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

STEERING(~50K mi)

$500

SPEED CONTROL(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 60 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: The contact owns a 2020 Chevrolet Suburban. The contact stated that while operating the vehicle a banging noise was present coming from the engine compartment. Additionally, while driving, the cluster gauges and the air conditioning malfunctioned. The vehicle was later examined by an independent mec
Typically appears around 50K miles. Repair cost ~$500
☐
TRANSMISSION: INTERMITTENTLY, WHILE ACCELERATING, A JOLT IS FELT EMANATING FROM THE RIGHT HAD SIDE, POSSIBLY TOWARD THE FRONT OF THE VEHICLE, WHEN THE AUTO FEATURE OF THE 4 WHEEL DRIVE IS ENGAGED. THIS OCCURS AT SPEEDS OVER 50. WHAT IS DESCRIBED IS AN ONGOING PROBLEM, SINCE THE VEHICLE HAS BEEN PURCHASED. NO
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: 2020 CHEVROLET SUBURBAN. UPON VEHICLE START: STEERING ASSIST, TRAILER BRAKE SYSTEM, STABILITY TRACK ALL INOP. TACHOMETER AND SPEEDOMETER INOP. NO REVERSE GEAR. WHEN IN DRIVE, ONLY FIRST GEAR OBTAINABLE AND MANUAL SHIFT MODE INOP. SEAT HEAT INOP. TURNED OFF AND RESTARTED APPROX FIVE TI
Typically appears around 50K miles. Repair cost ~$500
☐
STEERING: 2020 CHEVROLET SUBURBAN. UPON VEHICLE START: STEERING ASSIST, TRAILER BRAKE SYSTEM, STABILITY TRACK ALL INOP. TACHOMETER AND SPEEDOMETER INOP. NO REVERSE GEAR. WHEN IN DRIVE, ONLY FIRST GEAR OBTAINABLE AND MANUAL SHIFT MODE INOP. SEAT HEAT INOP. TURNED OFF AND RESTARTED APPROX FIVE TI
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)