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Standard Ignition SLS-174 Brake Light Switch
| Brand | Standard Ignition SLS-174 |
|---|---|
| Color | Black, Cream |
| Connector Gender | Female |
| Finish | Plastic |
| Functions | Switch |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Fits | Chevrolet, GMC, Buick, Oldsmobile, Cadillac, and Pontiac · 115 vehicles |
OE-quality construction. Built with brass or high-impact composite housings for durability.
Reduced arcing design. Special spring and contact arrangement helps extend service life.
Copper alloy conductors. Deliver strong conductivity with low resistive losses.
Cross-references Four Seasons 58077, 1S5206 and 6L2 for the same application. See all 10.
Brake Light Switch for GM Applications
The Standard Ignition SLS-174 brake light switch is built for dependable stoplamp operation across a wide range of Chevrolet, Buick, Cadillac, GMC, Oldsmobile, and Pontiac vehicles. It uses a durable housing, copper alloy conductors, and a contact design that helps reduce arcing for consistent electrical performance.
For drivers searching for a brake light switch for 1990s Chevrolet P30, Buick Century, or Cadillac Fleetwood applications, this part number offers a direct replacement solution with verified mechanical and electrical switching performance.
Key Features
- Standard Ignition SLS-174 brake light switch
- Black and cream color with plastic finish
- Female connector with 2 connectors
- Male blade terminals, 3 + 2 terminal layout
- Built with copper alloy conductors for low-resistance electrical flow
- Spring and contact design helps limit arcing for longer service life
- 100% tested for mechanical and electrical switching performance
Detailed Description
The SLS-174 is a stoplight switch designed for vehicles that rely on accurate brake pedal signal input to activate the rear brake lamps and related circuits. Standard Ignition uses robust materials and controlled manufacturing processes to support consistent operation in service environments. This brake light switch is listed for applications including Chevrolet P30, GMC P3500, Buick Century, Cadillac Fleetwood, and Pontiac Sunbird, along with other GM passenger and commercial chassis models from 1986-1999.
This part cross-references Four Seasons 58077 for the same application. If you are replacing a worn brake light switch on a Chevrolet Caprice, Buick Roadmaster, or Oldsmobile Cutlass Cruiser, the SLS-174 is a fitment-based replacement to verify against the original connector and terminal layout.
What It Helps Fix
- Brake lamps that do not illuminate when the pedal is pressed
- Intermittent stoplight operation caused by worn switch contacts
- Brake switch electrical faults on cruise-control-equipped GM vehicles
- Signal loss in stoplamp or related brake input circuits
- Switch wear from repeated pedal cycling over time
Installation Notes and Tips
Verify connector style, terminal count, and vehicle-specific notes before installation. This part uses a female connector, male blade terminals, and a 3 + 2 terminal arrangement, so matching the original switch configuration is important. Confirm fitment for the exact year, make, and model, especially on vehicles with cruise control or ABS relay-related notes such as Chevrolet Cavalier, Pontiac Sunbird, and Buick Century applications.
- Fits 1997-1999 Chevrolet P30
- Fits 1994-1995 Chevrolet P30
- Fits 1998-1999 GMC P3500
- Fits 1995-1996 Buick Century, stoplight
- Fits 1996 Chevrolet P30, 5 Term ABS Relay
- Fits 1993 Chevrolet P30, 5 Term ABS Relay
- Fits 1994-1996 Oldsmobile Cutlass Ciera, brake light switch for vehicles with cruise control
- Fits 1993-1995 Buick Roadmaster
- Fits 1993-1995 Cadillac Commercial Chassis
- Fits 1986-1990 Cadillac Commercial Chassis
- Fits 1989-1995 Cadillac Fleetwood
- Fits 1994-1995 Chevrolet Caprice, stoplight
- Fits 1994-1995 Chevrolet Impala
- Fits 1994 Buick Century, w/o vacuum port
- Fits 1992-1994 Chevrolet Lumina APV, brake light switch for vehicles with cruise control
- Fits 1994 Oldsmobile Cutlass Cruiser
- Fits 1989-1990 Oldsmobile Cutlass Cruiser
- Fits 1986-1993 Buick Century, 5 Term ABS Relay
- Fits 1992-1993 Chevrolet Caprice
- Fits 1991-1993 Oldsmobile Cutlass Cruiser, brake light switch for vehicles with cruise control
- Fits 1991-1992 Cadillac Allante
- Fits 1991-1992 Cadillac Brougham
- Fits 1991-1992 Chevrolet Cavalier, brake light switch for vehicles with cruise control
- Fits 1989 Chevrolet Cavalier, brake light switch for vehicles with cruise control
- Fits 1991-1992 Chevrolet Commercial Chassis
- Fits 1991-1992 Pontiac Sunbird, brake light switch for vehicles with cruise control
- Fits 1988-1989 Pontiac Sunbird, brake light switch for vehicles with cruise control
- Fits 1988-1991 Buick Reatta
- Fits 1986-1991 Buick Riviera
- Fits 1986-1991 Cadillac Eldorado
- Fits 1989-1991 Oldsmobile Toronado
- Fits 1986-1990 Cadillac DeVille
- Fits 1986-1990 Cadillac Seville
- Fits 1990 Chevrolet Cavalier, w/ cruise control; 5 Term.
- Fits 1990 Pontiac Sunbird, w/ cruise control; 5 Term.
- Fits 1989 Pontiac Bonneville, brake light switch for vehicles with cruise control
- Fits 1986-1988 Cadillac Fleetwood, brake light switch for vehicles with cruise control
- Fits 1988 Chevrolet Cavalier, terminals on side
- Fits 1988 Pontiac Bonneville
- Fits 1987 Chevrolet Cavalier
Quality Assurance
Standard Ignition manufactures this brake light switch with complete quality control from component selection through final production. Each unit is tested to confirm mechanical action and electrical switching performance before release.
| Year | Make | Model | Body Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1999 | Chevrolet | P30 | Cab & Chassis | — | — | — | N/A | — |
| 1999 | GMC | P3500 | Cab & Chassis | — | — | — | N/A | — |
| 1998 | Chevrolet | P30 | Cab & Chassis | — | — | — | N/A | — |
| 1998 | GMC | P3500 | Cab & Chassis | — | — | — | N/A | — |
| 1997 | Chevrolet | P30 | — | — | — | — | N/A | — |
| 1996 | Buick | Century | — | — | — | — | N/A | Stoplight |
| 1996 | Chevrolet | P30 | — | — | 4.3L | V6 | N/A | 5 Term ABS Relay |
| 1996 | Chevrolet | P30 | — | — | 6.5L | V8 | N/A | 5 Term ABS Relay |
| 1996 | Chevrolet | P30 | — | — | 7.4L | V8 | N/A | 5 Term ABS Relay |
| 1996 | Chevrolet | P30 | — | — | 5.7L | V8 | N/A | 5 Term ABS Relay |
| 1996 | Oldsmobile | Cutlass Ciera | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1995 | Buick | Century | — | — | — | — | N/A | Stoplight |
| 1995 | Buick | Roadmaster | — | — | — | — | N/A | — |
| 1995 | Cadillac | Commercial Chassis | — | — | 5.7L | V8 | N/A | — |
| 1995 | Cadillac | Fleetwood | — | — | — | — | N/A | — |
| 1995 | Chevrolet | Caprice | — | — | — | — | N/A | Stoplight |
| 1995 | Chevrolet | Impala | — | — | — | — | N/A | — |
| 1995 | Chevrolet | P30 | — | Automatic | — | — | N/A | — |
| 1995 | Oldsmobile | Cutlass Ciera | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1994 | Buick | Century | — | — | — | — | N/A | w/o Vacuum Port |
| 1994 | Buick | Roadmaster | — | — | — | — | N/A | — |
| 1994 | Cadillac | Commercial Chassis | — | — | — | — | N/A | — |
| 1994 | Cadillac | Fleetwood | — | — | — | — | N/A | — |
| 1994 | Chevrolet | Caprice | — | — | — | — | N/A | Stoplight |
| 1994 | Chevrolet | Impala | — | — | — | — | N/A | — |
| 1994 | Chevrolet | Lumina APV | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1994 | Chevrolet | P30 | — | Automatic | — | — | N/A | — |
| 1994 | Oldsmobile | Cutlass Ciera | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1994 | Oldsmobile | Cutlass Cruiser | — | — | — | — | N/A | — |
| 1993 | Buick | Century | — | — | — | — | N/A | 5 Term ABS Relay |
| 1993 | Buick | Roadmaster | — | — | — | — | N/A | — |
| 1993 | Cadillac | Commercial Chassis | — | — | — | — | N/A | — |
| 1993 | Cadillac | Fleetwood | — | — | — | — | N/A | — |
| 1993 | Chevrolet | Caprice | — | — | — | — | N/A | — |
| 1993 | Chevrolet | Lumina APV | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1993 | Chevrolet | P30 | — | Automatic | — | — | N/A | 5 Term ABS Relay |
| 1993 | Oldsmobile | Cutlass Cruiser | — | — | 3.3L | V6 | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1992 | Buick | Century | — | — | — | — | N/A | 5 Term ABS Relay |
| 1992 | Cadillac | Allante | — | — | — | — | N/A | — |
| 1992 | Cadillac | Brougham | — | — | 5.7L | V8 | N/A | — |
| 1992 | Cadillac | Brougham | — | — | 5.0L | V8 | N/A | — |
| 1992 | Cadillac | Fleetwood | — | — | — | — | N/A | — |
| 1992 | Chevrolet | Caprice | — | — | — | — | N/A | — |
| 1992 | Chevrolet | Cavalier | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1992 | Chevrolet | Commercial Chassis | — | — | 5.7L | V8 | N/A | — |
| 1992 | Chevrolet | Commercial Chassis | — | — | 5.0L | V8 | N/A | — |
| 1992 | Chevrolet | Commercial Chassis | — | — | 4.3L | V6 | N/A | — |
| 1992 | Chevrolet | Lumina APV | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1992 | Oldsmobile | Cutlass Cruiser | — | — | 3.3L | V6 | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1992 | Pontiac | Sunbird | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1991 | Buick | Century | — | — | — | — | N/A | 5 Term ABS Relay |
| 1991 | Buick | Reatta | — | — | — | — | N/A | — |
| 1991 | Buick | Riviera | — | — | — | — | N/A | — |
| 1991 | Cadillac | Allante | — | — | — | — | N/A | — |
| 1991 | Cadillac | Brougham | — | — | 5.7L | V8 | N/A | — |
| 1991 | Cadillac | Brougham | — | — | 5.0L | V8 | N/A | — |
| 1991 | Cadillac | Eldorado | — | — | — | — | N/A | — |
| 1991 | Cadillac | Fleetwood | — | — | — | — | N/A | — |
| 1991 | Chevrolet | Cavalier | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1991 | Chevrolet | Commercial Chassis | — | — | 5.7L | V8 | N/A | — |
| 1991 | Chevrolet | Commercial Chassis | — | — | 5.0L | V8 | N/A | — |
| 1991 | Oldsmobile | Cutlass Cruiser | — | — | 3.3L | V6 | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1991 | Oldsmobile | Toronado | — | — | — | — | N/A | — |
| 1991 | Pontiac | Sunbird | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1990 | Buick | Century | — | — | — | — | N/A | 5 Term ABS Relay |
| 1990 | Buick | Reatta | — | — | — | — | N/A | — |
| 1990 | Buick | Riviera | — | — | — | — | N/A | — |
| 1990 | Cadillac | Commercial Chassis | — | — | — | — | N/A | — |
| 1990 | Cadillac | DeVille | — | — | — | — | N/A | — |
| 1990 | Cadillac | Eldorado | — | — | — | — | N/A | — |
| 1990 | Cadillac | Fleetwood | — | — | — | — | N/A | — |
| 1990 | Cadillac | Seville | — | — | — | — | N/A | — |
| 1990 | Chevrolet | Cavalier | — | — | — | — | N/A | w/ Cruise Control; 5 Term. |
| 1990 | Oldsmobile | Cutlass Cruiser | — | — | 3.3L | V6 | N/A | — |
| 1990 | Oldsmobile | Toronado | — | — | — | — | N/A | — |
| 1990 | Pontiac | Sunbird | — | — | — | — | N/A | w/ Cruise Control; 5 Term. |
| 1989 | Buick | Century | — | — | — | — | N/A | 5 Term ABS Relay |
| 1989 | Buick | Reatta | — | — | — | — | N/A | — |
| 1989 | Buick | Riviera | — | — | — | — | N/A | — |
| 1989 | Cadillac | Commercial Chassis | — | — | — | — | N/A | — |
| 1989 | Cadillac | DeVille | — | — | — | — | N/A | — |
| 1989 | Cadillac | Eldorado | — | — | — | — | N/A | — |
| 1989 | Cadillac | Fleetwood | — | — | — | — | N/A | — |
| 1989 | Cadillac | Seville | — | — | — | — | N/A | — |
| 1989 | Chevrolet | Cavalier | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1989 | Oldsmobile | Cutlass Cruiser | — | — | 3.3L | V6 | N/A | — |
| 1989 | Oldsmobile | Toronado | — | — | — | — | N/A | — |
| 1989 | Pontiac | Bonneville | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1989 | Pontiac | Sunbird | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1988 | Buick | Century | — | — | — | — | N/A | 5 Term ABS Relay |
| 1988 | Buick | Reatta | — | — | — | — | N/A | — |
| 1988 | Buick | Riviera | — | — | — | — | N/A | — |
| 1988 | Cadillac | Commercial Chassis | — | — | — | — | N/A | — |
| 1988 | Cadillac | DeVille | — | — | — | — | N/A | — |
| 1988 | Cadillac | Eldorado | — | — | — | — | N/A | — |
| 1988 | Cadillac | Fleetwood | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1988 | Cadillac | Seville | — | — | — | — | N/A | — |
| 1988 | Chevrolet | Cavalier | — | — | — | — | N/A | Terminals on Side |
| 1988 | Pontiac | Bonneville | — | — | — | — | N/A | — |
| 1988 | Pontiac | Sunbird | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1987 | Buick | Century | — | — | — | — | N/A | 5 Term ABS Relay |
| 1987 | Buick | Riviera | — | — | — | — | N/A | — |
| 1987 | Cadillac | Commercial Chassis | — | — | — | — | N/A | — |
| 1987 | Cadillac | DeVille | — | — | — | — | N/A | — |
| 1987 | Cadillac | Eldorado | — | — | — | — | N/A | — |
| 1987 | Cadillac | Fleetwood | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1987 | Cadillac | Seville | — | — | — | — | N/A | — |
| 1987 | Chevrolet | Cavalier | — | — | — | — | N/A | — |
| 1986 | Buick | Century | — | — | — | — | N/A | 5 Term ABS Relay |
| 1986 | Buick | Riviera | — | — | — | — | N/A | — |
| 1986 | Cadillac | Commercial Chassis | — | — | — | — | N/A | — |
| 1986 | Cadillac | DeVille | — | — | — | — | N/A | — |
| 1986 | Cadillac | Eldorado | — | — | — | — | N/A | — |
| 1986 | Cadillac | Fleetwood | — | — | — | — | N/A | Brake Light Switch for vehicles with Cruise Control. |
| 1986 | Cadillac | Seville | — | — | — | — | N/A | — |
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