OBD diagnostics · purchase protection

2018 Gmc Sierra 1500
Common Problems & Inspection Guide

Verify baseline vehicle system stability data. Learn what to check on the physical vehicle computer before signing a bill of sale.

Connect Adapter & Check for Code Wipes

Platform Heritage

The Chevrolet Silverado is a range of trucks manufactured by General Motors under the Chevrolet brand. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The fourth generation of the model line was introduced for the 2019 model year. The Chevrolet Silverado shares mechanical commonality with the identically related GMC Sierra; GMC ended the use of the C/K nomenclature a model generation prior to Chevrolet. In Mexico, high-trim level versions of the Silverado use the Chevrolet Cheyenne name (not to be confused with the 2003 concept) Starting with the LT trim. Work Truck and "Custom" trims are still called Silverado. Competing against the Ford F-Series, Ram pickup, Toyota Tundra, and Nissan Titan, the Silverado is among the best-selling vehicles in the United States, having sold over 12 million trucks since its introduction in 1998 as a 1999 model year.

Source: Wikipedia intro extract · as of Jun 23, 2026

Key facts for this model year

293NHTSA owner complaints
7Safety recalls on file
85Top issue reports · Power Train
$0Typical OEM recall remedy cost to you

0 average monthly buyer searches in the US (google ads data · as of Jun 23, 2026). Run a MotoMetrics scan for your VIN to see live repair exposure.

Verify the data — open primary sources · as of Jun 23, 2026

System Defect Summaries & Field Data

Active safety recalls on file: 7 (source: NHTSA Recalls API · as of Jun 23, 2026)

Top NHTSA complaint categories

Recent recall summaries

Campaign 19V645000 · SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM · API record

General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.

Campaign 19V761000 · SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING · API record

General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.

Campaign 20V603000 · SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM · API record

General Motors LLC (GM) is recalling certain 2018 Cadillac Escalade, Chevrolet Silverado 1500 and Tahoe, GMC Sierra 1500 and Yukon vehicles equipped with either a 5.3L or 6.2L V8 engine. The output of the mechanical vacuum pump can decrease over time, decreasing the amount of vacuum/power brake assist.

Campaign 24V756000 · AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR · API record

General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2018-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 Crew Cab trucks. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.

Campaign 25V432000 · AIR BAGS · API record

General Motors (GM) is recalling certain 2018 GMC Sierra 1500, 2019 Sierra 2500, 3500, Chevrolet Silverado 3500, and Chevrolet Silverado 2500 and 2018 Chevrolet Silverado 1500 Crew Cab vehicles. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.

YouTube voice themes below are research hints only — verify against NHTSA data before citing.

On-Site Gmc Sierra 1500 Pre-Purchase Checklist

  1. Verify OBD-II readiness monitors are complete (not recently cleared) using a full protocol scan.
  2. Compare dashboard mileage to ECU-stored odometer modules where accessible.
  3. Pull permanent and pending DTCs — not only stored codes visible on the dash.
  4. Inspect systems related to POWER TRAIN (NHTSA complaint cluster — verify during test drive and PPI).
  5. Inspect systems related to ENGINE (NHTSA complaint cluster — verify during test drive and PPI).
  6. Inspect systems related to SERVICE BRAKES (NHTSA complaint cluster — verify during test drive and PPI).
  7. Inspect systems related to UNKNOWN OR OTHER (NHTSA complaint cluster — verify during test drive and PPI).
  8. Inspect systems related to POWER TRAIN,ENGINE (NHTSA complaint cluster — verify during test drive and PPI).
  9. Confirm recall remedy completed for SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM (campaign 19V645000).
  10. Confirm recall remedy completed for SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING (campaign 19V761000).
  11. Confirm recall remedy completed for SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM (campaign 20V603000).
  12. Run a MotoMetrics on-site scan for Gmc Sierra 1500 before signing the bill of sale.

Alternative Inferences & Cross-Shopping Matrix

Adjacent model years for this nameplate and equivalent footprints shoppers compare across brands.

Generational cohorts

2019 Gmc Sierra 1500 2025 Gmc Sierra 1500

Class competitors

2018 Ford F-150 2019 Toyota Tacoma 2018 Ram 1500

Vehicle health varies wildly by individual history. Aggregate recall and complaint data cannot tell you whether the specific car on the lot had its monitors cleared or its odometer rolled back. Verify the physical or digital scan before you sign a bill of sale.

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