GM Automotive Mechanic

Why This Role Matters

Western Truck Exchange is hiring a GM Automotive Mechanic to diagnose, service, and repair GM vehicles, gas vehicles, passenger cars, and light-duty trucks used by local customers, fleets, and municipalities.

This role is best for a technician with real hands-on experience who can diagnose issues accurately, complete quality repairs, and communicate clearly with the service team.
What You Will Work On

• Diagnose and repair GM vehicle systems, including engine performance, driveability, electrical, brakes, suspension, HVAC, and related systems.
• Perform preventive maintenance inspections, oil changes, chassis lubrication, and related maintenance services.
• Inspect vehicles for worn, damaged, unsafe, or failing components and report findings clearly.
• Diagnose and repair gasoline engines, drivetrain and powertrain components, differentials, transmissions, driveshafts, PTOs, wheel ends, engine bolt-on components, ECMs, ECUs, sensors, instruments, gauges, and related electronics.
• Use GM diagnostic tools and service information to confirm faults before replacing parts.
• Road test vehicles as needed to verify customer concerns and completed repairs.
• Document repair findings, work performed, parts needed, and job status accurately.
• Support shop quality standards and maintain a clean, safe work area.

What We Are Looking For

• 5+ years of practical experience in automotive inspections, diagnostics, and repairs.
• High school diploma or equivalent.
• Valid driver's license; CDL is a plus.
• Proficiency with shop tools and hand tools; ability to supply a basic set of hand tools as applicable by role/level.
• Basic computer skills for repair documentation, diagnostic systems, and maintenance records.
• Reliable attendance, punctuality, and a professional approach to safety and quality.
• Comfortable working in a non-climate-controlled shop environment.
• Willingness to travel as needed to customer yards and training sites.

Strongly Preferred

• GM automotive repair experience, especially engine performance, driveability, electrical, and diagnostics.
• Experience with GM scan tools and software such as GM MDI/MDI2, GDS2, or Techline.
• Experience using modern diagnostic tools and electronic service information.
• Experience with CAT and Cummins engine diagnostics/repairs is a plus.
• Experience with Allison transmission maintenance and rebuild-related services is a plus.
• Experience working on International or Mitsubishi Fuso medium-duty platforms is a plus.
• Vocational, technical, or OEM certifications.

What You Get in Return

• Opportunity to earn $100,000+ annually with a competitive wage system.
• Profit sharing plan.
• Quarterly incentive opportunities through our Rapid Improvement Plan.
• Paid training.
• Employee referral bonus.
• Uniform allowance.
• Employee discount and paid time off.
• A shop environment with professional standards, skill recognition, and advancement paths.

What To Expect During Hiring

• Complete and submit an application.
• Participate in interviews to confirm fit both ways.
• Complete background check and drug screening requirements.
• Selected candidates may receive a brief technical follow-up questionnaire to indicate proficiency across key systems and repairs.

About Western Truck Exchange

Western Truck Exchange is the leading retailer of used and new medium-duty commercial trucks in Los Angeles. Established in 1922, we are one of California's oldest licensed dealerships and an authorized International dealer.

Our Los Angeles dealership includes a commercial truck repair facility that supports fleets, municipalities, contractors, and local businesses that rely on their trucks every day. We are fully certified for CAT and Cummins repairs and qualified to provide Allison maintenance and rebuild services.

We believe our people are the driving force that keeps our customers and the transportation industry moving forward. We foster a culture of respect, appreciation, and opportunity, recognizing every employee's contribution to our shared success.

We are an equal opportunity employer and prohibit discrimination/harassment in accordance with applicable laws.