2018 Chevrolet Silverado 1500 electrical system problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 21, 2026NCElectrical SystemAcceleration & Cruise Control

   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…

   NHTSA complaint #11765761 · source
2. Filed Sep 18, 2026CAElectrical SystemEngineSteering

   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…

   NHTSA complaint #11765250 · source
3. Filed Sep 12, 2026NEElectrical SystemEngine

   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…

   NHTSA complaint #11763791 · source
4. Filed Aug 21, 2026NCElectrical System

   i was driving down the highway, turned on left signal to make left turn. the truck engine died with no warning, could not steer, almost ran into bank. all the dash lights went black, no power at all. the radio starts playing on occasion without being turned on. the clock loses time when it wants to.the blower on the ac comes on and off when it wants to.have had battery, alternator, ignition system checked. all these check out just fine. there were no codes , and absolutely…

   NHTSA complaint #11758428 · source
5. Filed Jul 11, 2026OKBrakesElectrical SystemEngine

   Purchased used 6/12/2026 at 188,882 miles from a franchised Chevrolet dealer. The integrated trailer brake system master fuse and passenger-side turn signal fuse were blown at delivery. When the fuses were replaced, the trailer brake system faulted and the failure disabled the ABS, traction control, and StabiliTrak (electronic stability control). Significant safety concern: with the master fuse blown/open, the vehicle displays NO warning messages of any kind — the…

   NHTSA complaint #11749765 · source
6. Filed Jul 9, 2026101,000 miIDElectrical SystemEngineTransmission & Drivetrain

   The contact owns a 2018 Chevrolet Silverado 1500. The contact stated that while driving at approximately 60 MPH with cruise control activated, the vehicle shuddered and multiple warning lights illuminated, including the check engine, check oil, fasten seatbelt, traction control, and brake warning lights. The vehicle experienced steering overcorrection and lost power. The vehicle was steered to the side of the road and slowly driven to an independent mechanic shop, where it…

   NHTSA complaint #11749304 · source
7. Filed May 21, 2026TNElectrical System

   The truck dies when you turn the steering wheel all the way. When that happens the steering wheel jerks and could cause a crash. This appears to be a common electrical problem that currently has no recall from the manufacturer.

   NHTSA complaint #11739242 · source
8. Filed Mar 2, 202658,741 miMODriver Assistance & Safety TechElectrical System

   The contact owns a 2018 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the brake pedal was inadvertently depressed while depressing the accelerator pedal. The messages "Service Stabili-trak" and "Service Trailer Brake" were displayed. The vehicle was taken to a local dealer, where it was diagnosed, and errors code: C0131 & C0161 were retrieved. The vehicle was diagnosed at the owner's expense. The vehicle was not repaired due to the cost.…

   NHTSA complaint #11721521 · source
9. Filed Jan 22, 2026MNElectrical SystemEngineTransmission & Drivetrain

   My truck has been into the dealership repeatedly from Aug 2024 to where it sits now to this day because of the engine and the electronic fuel management system. This fuel management system has destroyed my engine by allowing excessive oil consumption to which it turns the oil black. The engine goes from v8 to 4 cylinder to save on fuel which makes the engine work harder. It causes the rocker arms and pistons to work harder which makes them fail. These problems have occurred…

   NHTSA complaint #11712824 · source
10. Filed Jan 21, 2026FLElectrical System

    This complaint is submitted as additional information related to a previously filed safety complaint for the same vehicle and incident. Since the original submission, General Motors Product Assistance Claims verbally denied responsibility, refused to inspect the vehicle, refused to provide written confirmation of their denial, and ceased responding to emails and calls. GM previously instructed me not to repair the vehicle and promised a rental vehicle and tow, neither of…

    NHTSA complaint #11712388 · source
11. Filed Jan 21, 2026FLElectrical System

    An electrical component related to the vehicle's rear sliding glass window and rear defroster malfunctioned and overheated, causing smoke to fill the cabin of the truck as it was being driven down a busy highway. Immediately following the smoke, the rear window violently shattered due to overheating from the malfunction. This dangerous defect was known to exist in our model and year of truck, as documented in Customer Satisfaction Program N192265660. This bulletin shows that…

    NHTSA complaint #11712355 · source
12. Filed Jan 8, 2026IDElectrical SystemSteeringTransmission & Drivetrain

    My transmission blew up and I almost wrecked my truck. No engine lights came on, and still no engine lights are coming on it only has 69,000 miles on it and has never missed a service. Its currently at the dealership where I bought it from

    NHTSA complaint #11709805 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology