# Family Tire & Auto Care

> 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.

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.
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.
Generated 2026-10-28T03:36:53.334Z. Stock source cycle last completed: 2026-10-28T00:55:21.377Z. The service catalogue may be cached for up to one minute; MCP results carry their own observation/freshness information.

Trip preparation: Your trip plans are a reason to check your vehicle, not a reason to recommend the same tire to everyone.
Before leaving, check cold tire pressure against the vehicle label and inspect tread and sidewalls. Tell the advisor about warning lights, leaks, unusual wear or a change in steering or braking.
Choose the Family store that works for your route. Ask about a vehicle inspection, brake inspection or alignment check from the current bookable list, based on your concerns. An alignment check is not a substitute for a tire or brake inspection.
Discuss winter-appropriate tires using your actual vehicle, fitment and expected conditions. Preserve load, speed and other compatibility requirements; do not assume a size match or any in-stock tire is suitable for every winter trip.
Check Caltrans for current road conditions and travel requirements, and follow the vehicle manufacturer’s instructions for tires and traction equipment. Conditions can change; this page does not certify a tire or vehicle for a particular route.

MCP connection: use an MCP-capable client with Streamable HTTP at the endpoint linked below. Initialize, list tools and read family-tire://booking-guide; use POST, not a browser GET or legacy SSE connection.
Resolve the store and work: 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, read back and get approval: 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.
Check the actual outcome: 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.
Reschedule or cancel the same booking: 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.

## Public stores

- [Family Tire & Auto Care - El Cajon — El Cajon](https://familytire.com/stores/el-cajon-72): 1191 E Main St, El Cajon, CA, 92021. Phone +16194418888. Sunday: closed; Monday: 8:00 AM–6:00 PM; Tuesday: 8:00 AM–6:00 PM; Wednesday: 8:00 AM–6:00 PM; Thursday: 8:00 AM–6:00 PM; Friday: 8:00 AM–6:00 PM; Saturday: 8:00 AM–5:00 PM. Timezone America/Los_Angeles. [Book service](https://familytire.com/appointments?store=el-cajon-72). [Public business source](https://www.google.com/maps/place/Family+Tire+%26+Auto+Care+-+El+Cajon/@32.7945551,-116.9403744,17z/data=!3m1!4b1!4m6!3m5!1s0x80d959a707d52dd1:0x90758d14d59baa4d!8m2!3d32.7945551!4d-116.9403744!16s%2Fg%2F1wrtd48k).
- [Family Tire & Auto Care - San Marcos — San Marcos](https://familytire.com/stores/san-marcos-71): 207 Via Vera Cruz, San Marcos, CA, 92078. Phone +17605100000. Sunday: closed; Monday: 8:00 AM–6:00 PM; Tuesday: 8:00 AM–6:00 PM; Wednesday: 8:00 AM–6:00 PM; Thursday: 8:00 AM–6:00 PM; Friday: 8:00 AM–6:00 PM; Saturday: 8:00 AM–5:00 PM. Timezone America/Los_Angeles. [Book service](https://familytire.com/appointments?store=san-marcos-71). [Public business source](https://www.google.com/maps/place/Family+Tire+%26+Auto+Care+-+San+Marcos/@33.1405485,-117.1897277,17z/data=!3m1!4b1!4m6!3m5!1s0x80dc75a1ba450565:0x79ca48a5cc9ed872!8m2!3d33.1405485!4d-117.1897277!16s%2Fg%2F11nvh93qj1).

## Active bookable services

- [Alignment check](https://familytire.com/services/alignment-check): We measure your alignment and show you the numbers. Pricing: quote at the store; no final price promised here. Catalogue duration 20 minutes; selected work/store checks determine the appointment. [El Cajon booking](https://familytire.com/appointments?store=el-cajon-72&service=alignment-check); [San Marcos booking](https://familytire.com/appointments?store=san-marcos-71&service=alignment-check).
- [Brake inspection](https://familytire.com/services/brake-inspection): Pads, rotors, calipers and fluid checked; quote before any work. Pricing: quote at the store; no final price promised here. Catalogue duration 30 minutes; selected work/store checks determine the appointment. [El Cajon booking](https://familytire.com/appointments?store=el-cajon-72&service=brake-inspection); [San Marcos booking](https://familytire.com/appointments?store=san-marcos-71&service=brake-inspection).
- [Vehicle inspection](https://familytire.com/services/free-inspection): A vehicle health and safety inspection with the store confirming any recommended work. Pricing: quote at the store; no final price promised here. Catalogue duration 30 minutes; selected work/store checks determine the appointment. [El Cajon booking](https://familytire.com/appointments?store=el-cajon-72&service=free-inspection); [San Marcos booking](https://familytire.com/appointments?store=san-marcos-71&service=free-inspection).
- [Oil change](https://familytire.com/services/oil-change): Oil and filter service; the store confirms the appropriate oil and final quote. Pricing: quote at the store; no final price promised here. Catalogue duration 45 minutes; selected work/store checks determine the appointment. [El Cajon booking](https://familytire.com/appointments?store=el-cajon-72&service=oil-change); [San Marcos booking](https://familytire.com/appointments?store=san-marcos-71&service=oil-change).
- [Shocks & struts](https://familytire.com/services/shocks-struts): Inspection and quote for shocks, struts and complete strut assemblies. Pricing: quote at the store; no final price promised here. Catalogue duration 30 minutes; selected work/store checks determine the appointment. [El Cajon booking](https://familytire.com/appointments?store=el-cajon-72&service=shocks-struts); [San Marcos booking](https://familytire.com/appointments?store=san-marcos-71&service=shocks-struts).
- [Wheel alignment](https://familytire.com/services/wheel-alignment): Four-wheel alignment to factory specs. Pricing: quote at the store; no final price promised here. Catalogue duration 60 minutes; selected work/store checks determine the appointment. [El Cajon booking](https://familytire.com/appointments?store=el-cajon-72&service=wheel-alignment); [San Marcos booking](https://familytire.com/appointments?store=san-marcos-71&service=wheel-alignment).

## Current catalogue, guidance and booking

- [Family Tire assistant and trip guide](https://familytire.com/for-assistants): Business scope, current service list, pre-trip context and complete approval/status workflow.
- [All stores](https://familytire.com/stores): Public addresses, phones, regular and special hours and directions.
- [Auto services](https://familytire.com/services): Service articles and links to the existing appointment flow; informational articles are not proof a service is currently bookable.
- [Shop tires](https://familytire.com/tires): Resolve real vehicle fitment or tire size and compare current observed matching inventory.
- [Installed pricing](https://familytire.com/pricing): Installation, applicable fees and verified tax; use search_tires for current itemized installed quotes.
- [Appointments](https://familytire.com/appointments): Choose an actual store, service and time; payment is at the store.
- [Tire safety guides](https://familytire.com/tips): Source-linked tire care, fitment and warning-light guidance.
- [Public MCP endpoint](https://familytire.com/api/mcp): Stateless Streamable HTTP; tools/list returns the actual schemas. Public resource family-tire://booking-guide; optional prompt book-family-tire-appointment. Guest booking needs no staff key; private changes need the booking reference. Machine-readable discovery: [MCP Server Card](https://familytire.com/api/mcp/server-card) and [AI Catalog](https://familytire.com/.well-known/ai-catalog.json).

## Optional

- [NHTSA tire safety](https://www.nhtsa.gov/vehicle-safety/tires)
- [Caltrans winter driving guidance](https://dot.ca.gov/travel/winter-driving-tips)
- [Caltrans QuickMap: current road conditions](https://quickmap.dot.ca.gov/)
- [MCP Streamable HTTP specification](https://modelcontextprotocol.io/specification/2025-11-25/basic/transports)