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CALIFORNIA · MAIL-IN SERVICE

GM Auto Stop-Start Disable in California

Ship your module from Los Angeles or anywhere in California — we complete the work in 24 hours and ship it back at the return speed you choose at checkout — standard to overnight.

$250 flat Fast Turnaround ~2-3 day USPS from CA
Text Before You Buy

Why California customers mail in gm auto stop-start disable

California has roughly 31 million registered vehicles, and European luxury (BMW, Mercedes, Audi) make up much of what Los Angeles-area shops and owners mail us. Domestic work like gm auto stop-start disable runs high-volume across California — we see a steady stream out of Los Angeles, San Francisco Bay Area, San Diego. Cross-country west — about 2-3 days each way.

Metros we serve in California

Los AngelesSan Francisco Bay AreaSan DiegoSacramento

California at a glance

  • ~31M registered vehicles statewide
  • Most common: European luxury (BMW, Mercedes, Audi)
  • California requires a biennial Smog Check emissions inspection in most counties through the BAR program.

What you get

  • Auto stop-start permanently disabled in the ECM calibration on supported GM applications
  • A tune-level disable — not a per-drive button you have to press each time
  • Bench read + verify of your calibration before any changes
  • Calibration written back on the bench with a stable, regulated power supply
  • Bench communication tested before the module ships back
  • Up-front VIN + ECM verification so you know before paying whether yours is supported
  • ECM returned with tracking — return-shipping speed your choice at checkout

Shipping timeline — California ↔ Arlington TX

USPS Priority routes west through the Southwest network; usually 2-3 days given the distance. Typical round-trip from Los Angeles or anywhere in California:

  1. Day 0

    You ship

    USPS Priority from CA, ~$12

  2. Day 2-3

    We receive

    Workshop opens + inspects

  3. Day 3

    Work done

    24-hour bench turnaround

  4. ~Day 7

    Back to you

    Return speed you chose at checkout

California FAQ

Common questions from customers shipping from California.

How long does shipping take from California to your Arlington TX workshop?
USPS Priority Mail from Los Angeles, CA reaches our Arlington workshop in about 2-3 business days. USPS Priority routes west through the Southwest network; usually 2-3 days given the distance. We start work the same day your module arrives and ship back next business day at the return speed you chose at checkout.
How much does it cost to ship a module from California?
USPS Priority flat-rate from California to Arlington TX runs about $12. The customer pays shipping to us; return shipping back to California is selected at checkout — $14.95 standard (3-5 business days), $29.95 UPS 2-Day, or $74.95 UPS Next Day Air, flat nationwide. Cross-country west — about 2-3 days each way.
Do you accept gm auto stop-start disable modules from California?
Yes — we receive modules from Los Angeles, San Francisco Bay Area, San Diego, Sacramento and the rest of California regularly. With about 31 million registered vehicles statewide, European luxury (BMW, Mercedes, Audi) are the bulk of what we see from California.
Is there a gm auto stop-start disable shop in Los Angeles I should use instead?
Most Los Angeles shops don't keep the bench equipment for gm auto stop-start disable — they'd forward the module to a specialist anyway, which adds a markup and a middleman. Going direct to us is usually faster and cheaper. Cross-country west — about 2-3 days each way.
Does California vehicle inspection or emissions testing affect this service?
California requires a biennial Smog Check emissions inspection in most counties through the BAR program. Our service is bench module programming only — you remain responsible for your vehicle's compliance with all California and federal requirements.
Can you do this on my non-GM vehicle?
No. This bench service is GM-specific. Non-GM vehicles need an at-the-car OBD procedure or a plug-in stop-start memory module instead — this mail-in ECM service does not apply to them.
How do I know if my ECM can be done on the bench?
Send us your VIN and a photo of your ECM service-number label. We confirm whether your ECM is pre-Global B, unlocked, and bench-writable before you ship. Coverage is narrow, so this verification step is required — it's how we make sure you're not paying for an unsupported vehicle.

Full details

See the complete GM Auto Stop-Start Disable service page

Compatibility list, what it fixes / doesn't fix, shipping instructions, warranty.

Full Service Page

Same service from other states:

AlabamaAlaskaArizonaArkansasColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusetts

Ship from California today

Pay now, get the Arlington TX shipping address by email, drop it in the mail. Full round-trip from Los Angeles: about a week.

(817) 678-3252