The 2025 GMC Sierra 1500 receives a variety of small changes for the seventh model year of the full-size, half-ton truck’s fourth generation.
These changes follow the 2019 Sierra 1500, which received a complete overhaul (re-engineering and redesign) and launched the fourth-gen model, followed by a mid-cycle refresh for the 2022.5 Sierra 1500, along with small changes to the 2023 Sierra 1500 and the 2024 Sierra 1500.
Model Line
- No changes
The trim level structure carries over from the 2024 model year:
- Regular Cab, Double Cab and Crew Cab
- Pro (1SA)
- Double Cab and Crew Cab
- SLE (3SA)
- Elevation (3VL / 3SB)
- Crew Cab
- SLT (4SA)
- AT4 (4SB)
- AT4X (4SG)
- Denali (5SA)
- Denali Ultimate (5SB)
Exterior
- Deletion of two exterior colors:
- Dynamic Blue Metallic (GLT)
- Deep Bronze Metallic (GXN)
Dynamic Blue Metallic
Deep Bronze Metallic
- Change in the availability of tire options on AT4:
- LT275/65R18C blackwall Goodyear Wrangler Territory Mud Terrain (MT) tires now optional on AT4
- For the 2024 model year, this tire was standard on AT4
- For the 2025 model year, 275/60R20 Bridgestone Dueler All-Terrain blackwall tires become standard on AT4
-
- For the 2024 model year, this tire was optional on AT4
- Spare 255/80R17SL all-season blackwall tire is now standard on AT4
- For the 2024 model year, 265/70R17 was the standard spare on AT4
- Spare 265/70R17SL all-season blackwall tire is now optional on AT4
- LT275/65R18C blackwall Goodyear Wrangler Territory Mud Terrain (MT) tires now optional on AT4
- Change in the availability of wheel options on AT4:
- 20-inch machined aluminum wheels with Carbon Grey Metallic accents (NZH) now standard on AT4
- These wheels ship with the Bridgestone Dueler All-Terrain tires
- For the 2024 model year, these wheels were optional on the AT4
- 18-inch machined aluminum wheels with dark painted pockets (57N) now optional on AT4
- These wheels ship with the Goodyear Wrangler Territory Mud-Terrain tires
- For the 2024 model year, these wheels were standard on the AT4
- 20-inch machined aluminum wheels with Carbon Grey Metallic accents (NZH) now standard on AT4
- Addition of 22-inch Bright split-spoke wheels (LPO SFU)
- Available only on SLT and Denali
- “Standard” tailgate (QK1) is now standard on SLE and Elevation
- For the 2024 model year, the standard tailgate (QK1) was available as an option because MultiPro Tailgate (QK2) was standard on these trims
- Consequently, the MultiPro Tailgate (QK2) is now optional on SLE and Elevation
New 22-inch wheels (SFU)
Standard Tailgate (QK1)
MultiPro Tailgate (QK2)
- Spray-on Bedliner (CGN) will have GMC logo on back wall on AT4, AT4X, Denali and Denali Ultimate
- For the 2024 model year, the logo included on the back wall was trim specific:
- AT4 logo on AT4 trim
- AT4X logo on AT4X trim
- Denali logo on Denali and Denali Ultimate trims
- For the 2024 model year, the logo included on the back wall was trim specific:
Interior
- No changes
Mechanical
- Change in availability of two transmission options:
- 10-speed automatic transmission (MI2) now requires 4WD on the Crew Cab model with Pro trim
- For the 2024 model year, 10-speed automatic transmission (MI2) was available with 2WD or 4WD
- Regardless of model year, the MI2 transmission is included and only available with Police Pursuit Package (9C1), Special Services Package (5W4) or E85 FlexFuel capability (FHS)
- 10-speed automatic transmission (MQB) now requires 4WD on Elevation and SLT trims with with bench seat
- For the 2024 model year, 10-speed automatic transmission (MQB) was available on 2WD or 4WD
- For both 2024 and 2025 model years, the MQB transmission is one of two transmissions used in conjunction with the 3.0L I6 LZ0 turbodiesel Duramax engine
- The other transmission used in conjunction with the LZ0 is the 10-speed automatic (MQC), which has Electronic Transmission Range Selector (ETRS) and paddle shifters, both features that the MQB lacks
- 10-speed automatic transmission (MI2) now requires 4WD on the Crew Cab model with Pro trim
- E85 FlexFuel capable (FHS) now requires 4WD on Crew Cabs with Pro trim
- For the 2024 model year, E85 FlexFuel capability (FHS) did not require 4WD, and was available with either 2WD or 4WD
- Requires:
- Fleet or Government sales order
- 4WD Crew Cab model
- 5.3L EcoTec3 V8 L84 engine
- Trailer brake controller (JL1)
- Not available with:
- 1SA Safety Plus Package (PQA)
- Selecting FHS deletes automatic engine stop/start (KL9)
- Addition of Universal Vehicle Module (KGU)
- The Universal Vehicle Module enables CAN readability of selected messages utilizing SAE J1939 formatting, offering 10-switchable inputs and outputs, and includes a graphical user interface to customize specific needs with more than 150 operating parameters available to read.
- Available only on the Pro trim level
Driver Assist Technology
- Super Cruise (UKL) is now standard on Denali Ultimate
- For the 2024 model year, Super Cruise was optional Denali Ultimate
- Super Cruise remains optional on non-Ultimate 2025 Sierra Denali 1500
- Cruise Control (K34) now standard on Pro
- For the 2024 model year, Cruise Control (K34) was optional on this trim
- Trailer brake controller (JL1) now standard on SLE, Elevation and SLT trims
- For the 2024 model year, trailer brake controller was optional on these trims
Packages
- No changes
The updates and changes described here are specific to the U.S. market and may be different for other markets.
Discussion
Discuss the 2025 GMC Sierra 1500 in our GMC forum.
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