Find Family Tire stores in San Marcos and El Cajon, current bookable services, pre-trip tire guidance and the public AI booking connection.
San Marcos & El Cajon · pay at the store
Family Tire & Auto Care serves San Marcos and El Cajon, California. These are the two Family stores connected to this website; there is no Family Tire location in Big Bear.
1191 E Main St, El Cajon, CA 92021
(619) 441-8888Store-local timezone: America/Los_Angeles
207 Via Vera Cruz, San Marcos, CA 92078
(760) 510-0000Store-local timezone: America/Los_Angeles
This list comes from the same active, bookable service catalogue as the appointment flow. The catalogue is shared by both stores; the selected store and current booking checks determine whether your particular request can be accepted.
Only a service marked free in the current catalogue is offered at no charge. Quote-priced work requires the store to confirm the price. Fixed catalogue amounts are not a promise that additional repairs, fees or vehicle-specific work are included.
Catalogue read for this page: 2026-10-28T03:10:10.074Z
We measure your alignment and show you the numbers.
Quote at store · About 20 min
Pads, rotors, calipers and fluid checked; quote before any work.
Quote at store · About 30 min
A vehicle health and safety inspection with the store confirming any recommended work.
Quote at store · About 30 min
Oil and filter service; the store confirms the appropriate oil and final quote.
Quote at store · About 45 min
Inspection and quote for shocks, struts and complete strut assemblies.
Quote at store · About 30 min
Four-wheel alignment to factory specs.
Quote at store · About 1 hr
Tire prices, installed totals, stock and appointment times change. Use the current catalogue or MCP tools, retain their source timestamps and warnings, and recheck before booking. A tire-only price is not the installed total; unknown stock is not a promise of availability.
Prices & stock checked 2 h ago
Stock source cycle completed: 2026-10-28T00:55:21.377Z
Your trip plans are a reason to check your vehicle, not a reason to recommend the same tire to everyone.
Use an MCP-capable client with the Streamable HTTP endpoint below. This is a protocol endpoint, not a web page: initialize the MCP connection, list tools and read the public booking guide. GET does not provide a chat interface or an SSE stream.
MCP endpointhttps://familytire.com/api/mcp
Public MCP resource: family-tire://booking-guide
find_stores → list_services → find_vehicles → search_tires → get_appointment_times
Ask which store and what the person needs. Use real vehicle and fitment choices, current service options and store-local times. Explain installed versus tire-only prices, unknown or stale stock, and any order-in arrival limits.
prepare_appointment → confirm_appointment
Preparation returns a summary and confirmation token; it does not reserve or submit the appointment. Read or show the exact summary and pay-at-store terms, get the person’s explicit approval, then confirm that token. Never manufacture approval. No card payment or repair authorization is collected here.
get_appointment
Keep the returned booking reference private and check status. Saved, queued, retrying, review or rejected requests are not confirmed appointments. Only the verified appropriate revision confirms its appointment. A callback is staff follow-up, not an appointment.
get_reschedule_times → prepare_reschedule → prepare_cancellation → confirm_appointment → get_appointment
Use the existing booking reference, prepare the change and obtain explicit approval of its summary before confirming. Keep the last confirmed appointment distinct from a pending change. Cancellation is complete only when its actual status says so.
Guest discovery and booking do not require a staff API key or customer account. Keep confirmation tokens, the booking reference and private receipt links out of public content and logs. A booking reference grants access to that booking; it does not prove customer-account ownership.
llms.txt is optional guidance for readers, not an MCP registration standard or a guarantee of Google, ChatGPT or other assistant inclusion, recommendations or ranking.