2022 Chevrolet Suburban: check engine light

Filed Aug 31, 2026 · Engine · IN

I am submitting a safety complaint regarding our 2022 Chevrolet Suburban equipped with the 6.2L L87 engine. The vehicle is subject to GM Product Safety Recall N252494000 / the federal safety agency Recall 25V‑274. Our Suburban underwent GM's required recall inspection, including the Picoscope inspection. The engine passed the inspection and the engine oil type was changed in accordance with GM's recall procedure. Since passing that recall inspection, we have experienced the following issues: On XXX, at approximately 40,527 miles, while we were in [XXX], the vehicle displayed a reduced-acceleration warning and check-engine light and experienced significant acceleration problems and loss of reverse. We took the vehicle to Essenlohr Motors, a Chevrolet dealer in [XXX]. The dealer diagnosed a P0700 condition/control solenoid stuck off and repaired the transmission valve body under GM warranty. I understand this incident was diagnosed as a transmission issue, and I am including it as part of the vehicle's recent history rather than asserting that it was caused by the L87 engine defect. The dealer's repair order documents both the check-engine condition and our report of the reduced-acceleration warning. On XXX, after we had returned home to [XXX] from our trip to [XXX], the Suburban had 41,798 miles on it. We drove approximately 2 miles from home when a “Low Engine Oil–Add Oil” warning appeared. We immediately returned home and parked the vehicle. After allowing it to sit for approximately 15 minutes, we checked the engine oil and there was no oil registering on the dipstick. We saw no evidence of an external oil leak on the garage floor or underneath the vehicle. Rather than continuing to drive it, we had the Suburban towed to Wiers Chevrolet in [XXX]. The dealer confirmed that the engine was approx. two quarts low on oil and indicated that there was no apparent leaks. They performed an oil change and started a 6,000 mile oil consumption test. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 30, 2026 · Electrical, Engine · WA

Operating vehicle normally until one day I heard a rattling noise from the engine compartment. Car had limited speed and i had to pull over to check what the issue was and the car wont start. No check engine lights, no warning. Tried turning car on but only the car starter keeps rolling. Tried jumping and it doesnt start and had to have it towed to the dealership. Car is under 55,000miles and dealer diagnosis indicates there are metal particles in the new oil after replacing oil and a loose bearing. States i will need a new engine, which is on back order and GM will only cover $44/day until repair is complete. All maintenance and oil change invervals were kept up to date. Other days when I start the car, the main HUD with the speedometer does not turn on. Pitch black... I can drive but not know what my speed is. I had to disconnect battery and reconnect to clear the issue. It has happened several times.

Filed Aug 19, 2026 · Electrical · NC

The telematics control module in this vehicle failed. A dealer diagnostic scan on 03/09/2026 at 67,839 miles documented the following active and history codes: U0198 Lost Communication with Telematics Module, reported independently by the Radio, Body Control Module, and Instrument Panel Cluster Control Module; U0499 Invalid Data Received from Telematics Module, reported by the Engine Control Module; U1962 Unable to Authenticate Serial Data Message; B1A1F Ethernet Bus 4 (+) Circuit Open with a Low Voltage/High Temperature symptom; and P00FF Body Control Module Requested MIL Illumination, listed as Current. As a result, the check engine light is commanded on. All OnStar functions are inoperative, including Automatic Crash Response and Emergency SOS, which are safety systems. The OnStar button has no illumination at all. Remote functions and vehicle connectivity are dead. No warning message or notification of a module fault was ever displayed in the vehicle. The infotainment system reports “Your Software is Up-to-Date” and the Device Registration screen reports “Registered.” The last over-the-air software update this vehicle received was in August 2023

Filed Aug 3, 2026 · Engine · 39,000 miles · NC

The contact owns a 2022 Chevrolet Suburban. The contact stated that while attempting to start the vehicle with the Push-To-Start button, the engine failed to turn over. The check engine warning light was illuminated. The contact's husband was notified of DTC: P129F, which was diagnosed by the OnStar App. The vehicle was towed to a local dealer where it was diagnosed with a defective fuel control module. The vehicle was scheduled to be repaired out-of-pocket. Upon further investigation, the contact associated the failure with General Motors Emissions Recall: N252516900; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 39,000.

Filed Jun 30, 2026 · Transmission · WI

I own a 2022 Chevrolet Suburban with approximately 115,000 miles. While driving, the check engine light illuminated and the vehicle suddenly entered limp mode. The transmission lost normal operation, including reverse gear, significantly limiting the vehicle’s ability to operate. The failure occurred without warning and created a potential safety concern because the vehicle could no longer respond normally to driving conditions. The vehicle was inspected by a Chevrolet dealership, where technicians diagnosed a failed transmission control valve body and confirmed the valve body required replacement. I paid to have the repair completed. After the repair, I learned that GM issued Special Coverage N242454441 for certain 2021-2022 Chevrolet Suburban vehicles equipped with the same transmission. The bulletin describes premature transmission control valve wear that can cause a service engine light, reduced engine performance, harsh shifting, and requires replacement of the transmission control valve body. My vehicle experienced the same failure and required the same repair, but my VIN was not included in the covered population. I contacted GM before authorizing the repair and requested assistance, but my request was denied because my VIN was not included in the special coverage. I am submitting this complaint because my vehicle experienced the same transmission valve body failure identified by GM despite not being included. I request that the federal safety agency document this failure and determine whether additional vehicles equipped with the same transmission should be included in any current or future safety investigation.

Filed Apr 24, 2026 · Transmission · TN

While driving down the high way with the check engine light on, a message appeared on the screen and said “unable to shift soon. Service transmission immediately.” After driving a few more miles the vehicle shifted to neutral, and then as soon as I got on the shoulder of the highway and slowed to approximately 5 mph, the vehicles wheels locked up and the car jerked aggressively into park. This exact issue has occurred multiple times while driving. It is unsafe to drive the vehicle.

Filed Mar 16, 2026 · Transmission · NC

Check engine light with rough shifting and vehicle wouldn’t go in reverse. For safety reasons we had the vehicle towed to our local Chevy Dealership. Transmission needed a valve body rebuild. This is a known issue with this transmission but our VIN wasn’t under that recall.

Filed Jan 26, 2026 · Fuel system · FL

On Saturday, 11/29/25 @ 3PM, while driving on I-75 from GA to MIA, our 2022 Suburban VIN: [XXX] sudden & unexpected had a mechanical failure. Without warning, vehicle stalled/ stop while traveling at highway speed, leaving us seconds to maneuver to the side. This failure created an extremely dangerous situation that could have resulted catastrophic or fatal accident for my family. Check engine light came on (code P102A). An officer stopped to assist & arranged car to be tow which we had to pay $135 to nearest Chevrolet dealership. Since the dealership was closed, I was forced to stay an additional night in a nearby hotel and paid $106.46. The vehicle was inspected by Countryside Chevrolet, who diagnosed the issue as a failure of the fuel pump control module however I was informed that this VIN was not covered under warranty or any special coverage, despite the fact that we experienced the exact same failure on our 2021 Chevrolet Tahoe, which was covered under warranty for this same defect. I was forced to pay $708.72 for the repair. This inconsistency is unacceptable—especially considering GMs extensive history of complaints, recalls, & class action litigation involving defective fuel pump & fuel system components, which present a well-documented safety risk. I filed a complaint with GM Customer Care (Case XXX). I submitted all required receipts for repairs, towing & hotel, however GM denied my claim without providing any explanation, only stating VIN was “not covered.” Also, GM refused to provide a written justification & my request for a manager callback was ignored. No consideration was given to the safety implications of this failure. This response is unacceptable & demonstrates a failure to take responsibility for a known safety defect. Demand: Given the seriousness of this incident, the documented defect, & GM’s prior knowledge of same failures, I demand full refund of $950.18 for expenses. This situation could have ended tragically. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA

Filed Nov 26, 2025 · Engine · MD

Car initially started stuttering on the high, check engine and traction control lights came on. I immediately went to the nearest Chevy dealership a mile away. Initially I had 20 error codes. The problem was the Left side lifters 4 of 8 stop working. Dealership recommended Replace Left lifters, 2 push rods, valve cove, head gasket. $5000. After starting the work. The technician could not repair the lifters because my camshaft is pitted and the RODS were rotating. Their recommendation is to replaced the whole engine to fully fix the problem. $12000 with 3 yr warranty. My SUV just 100kmiles.

Filed Nov 5, 2025 · Engine · NC

Engine failed while driving. Vehicle began making clicking noise less than one minute for engine shut off while driving. Check engine light came on after engine shut off. Car was stopped at a busy intersection and couldn’t move. Car is currently at Chevrolet dealership and is in need of a total engine replacement

Filed Oct 31, 2025 · Engine · 97,000 miles · TX

The contact owned a 2022 Chevrolet Suburban. The contact stated that while the vehicle was parked with the engine running, the front of the vehicle began to shake violently, with a knocking sound coming from the engine compartment. The check engine, traction control, and collision warning lights were illuminated. The contact called an independent mechanic; however, the vehicle was not diagnosed or repaired. The contact later visited the dealer and was informed that the vehicle needed to be brought in for diagnostic testing. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 97,000.

Filed Aug 6, 2025 · Engine · NH

The coolant control valve malfunctioned on this vehichle several times during the course of ownership. It causes the vehichle to run in limp mode. This part was replaced in July 2023 at ~40,000 miles as a result. The part again began to fail in june/july 2025 with a dealer visit and diagnostic in July. This causes a check engine light, reduced milage, reduced acceleration, constant fan running and fails state inspection Google searches indicate this is a very common problem, yet no recall has occured to date. The first repair was in warrantee and now the vehicle is out of warantee. If the part was not covered under the vehicle warrantee, the part and repair would have been covered by the part warantee. Becsuse of the initial powertrain warrantee repair, the part warrantee does not apply. This is clearly a defective design and part that requires recall and replacement at GM cost