2018 Chevrolet Silverado 1500 problems

Filed Nov 4, 2026 · Electrical · OK

Unknown but it will randomly have a full system electrical shutdown & resets while driving & a higher % when I'm making a turn.

Filed Oct 26, 2026 · Electrical · MN

Power Sliding Glass window on rear of vehicle had a thermal failure, resulting in heavy smoke buildup in the cap followed by the window shattering. My vehicle has already received the recall repair, GM Program #N192265660 / NHSTA TSB #10171416, but the defect reoccurred and caused destruction to the vehicle.

Filed Oct 23, 2026 · Engine · 125,000 miles · TX

The contact owns a 2018 Chevrolet Silverado 1500. After starting the vehicle, there was a clicking sound coming from under the hood, and then the sound stopped. While driving approximately 55 - 60 MPH, a fuel odor was detected inside the cabin of the vehicle. The vehicle was diagnosed by an independent mechanic, who determined that the exhaust manifold bolts had fractured. The bolts and gaskets were replaced. The manufacturer was notified of the failure by phone, and a case was filed. The failure mileage was approximately 125,000.

Filed Oct 7, 2026 · Tires · WA

I purchased four tires for my truck from Firestone, each rated for 60,000 miles. After approximately 30,000 miles, all four tires developed microcracking and visible damage. I suspect the issue may be related to the quality or composition of the materials used. I contacted the Firestone location where I had previously taken my vehicle for maintenance and tire service to have the tires inspected. While an employee was assisting me, I showed him photographs of the tires on the side of the computer counter to start the process to replace them, then manager approached to me rudely and disrespectfully asking me to go to the front, replaying to him : I am showing pictures of my tires asking me to leave the store just for that. Afterward, I had the tires inspected at Costco, where I was advised to replace them as soon as possible because represent a safety issue. For the safety of my family and myself, I replaced the tires for another brand. I subsequently filed a complaint with Firestone’s corporate office, but Firestone has declined to take responsibility for the condition of the tires asking to refund me the money I paid for the tires and a relief for the way I was treated. I am attaching pictures to show the condition of all tires and PDF File an email from Firestone.

Filed Sep 21, 2026 · Engine · IN

I Tried to get a tune up and found out that the Engine need $5000 worth of engine repairs. I have changed the oil and filter every three thousand miles. Those engine are defective and the repair shops are full of the same type of repairs on that type of engine. My engine is a 5.3-liter V8, The engine started to make ticking noises out of nowhere and then it started missing badly. The repair shop informed me it would take 3 weeks before i could get it repaired at the cost of $5000.I did research on the 5.3 liter engine and found out that GM produced a engine that will cost us owners a lot of our heard money for a defect they created, This is so wrong Because i am a senior citizen. I paid over $50,000 for a limon that is just wrong.

Filed Sep 21, 2026 · Acceleration, Electrical · NC

On September 10, 2026, while traveling approximately 60+ mph in the passing lane, my 2018 Chevrolet Silverado 1500 suddenly lost normal acceleration and entered Reduced Engine Power mode. Vehicle speed dropped to approximately 40 mph, and pressing the accelerator would not provide normal power. This created a safety concern while traveling at highway speed. On September 11, OnStar On-Demand Diagnostics documented ECM code P2138 (Accelerator Pedal Position Sensor 1-2 Correlation) and ABS code U0422. The TCM reported no error codes. The check-engine light later turned off, indicating the problem is intermittent. GM Technical Service Bulletin 07-06-04-019F addresses intermittent P2138 with Reduced Engine Power and possible water intrusion/corrosion affecting the accelerator pedal position circuit. After removing the driver’s kick panel, we observed evidence of previous moisture/rust in the area, but the exact cause has not yet been diagnosed. The vehicle is scheduled for diagnosis by a Chevrolet dealer. I am reporting this because the sudden loss of acceleration at highway speed created a safety hazard and to document the incident for potential defect-trend investigation.

Filed Sep 18, 2026 · Electrical, Engine · CA

Intermittent issues seemingly related to power or ground problems. At idle, battery voltage drops down from 14-15v to <= 12v (as indicated on the voltmeter on the dash) while turning the steering wheel. "Service StabiliTrack" message shows up on the screen, and the steering becomes very difficult. Last night this issue happened and the truck completely lost power including interior lights, headlights, radio, accessory power, and the engine even turned completely off. This happened in the middle of the street as I came to a stop in front of my house and was going to reverse into my driveway. Cycling the key was enough to restart the truck and the power came back on. When this first happened to me almost two years ago, I brought the truck in for transmission concerns (resulting in a transmission replacement) to my local dealer, and I explained what had happened and they could not reproduce the concern and said everything checked out fine. I've had strange electrical problems pop up every now and then including this StabiliTrack warning message and a trailer brake warning when I am not even hauling a trailer, but this is a major safety concern. My wife and daughter were in the truck with me when it happened, and if the power ever shut off like this on the freeway, major road, or even off-roading, it would be disasterous.

Filed Sep 16, 2026 · Transmission · VA

The transmission went out before it hit 100k miles. It had to be completely replaced which cost me several thousand dollars.

Filed Sep 12, 2026 · Electrical, Engine · NE

Several times, while driving, the truck will simply shut down. It will becoime difficult to steer, then the engine will stall, killing the rest of the steering and the breaks as well as the dashboard, radio, etc. This can happen at any speed, low speed especially. I will give you an approximate date below, but there have been several incidents. The truck was looked at by our local mechanice, who could not find a problem and by the dealership electrical specialist who has also been unable to locate a problem.

Filed Aug 23, 2026 · Engine, Transmission · TN

My truck has been shuttering when accelerating and hard shifts periodically. The engine is also tapping. I have right at 74000 miles. regular oil changes and maintenances.