Official manuals
Sierra.ev Owner's Manual
Complete manual: features, safety, charging, ADAS, maintenance. Official Tata Motors publication.
Official · Tata Motors
Sierra.ev Brochure (2026)
Full variant specs, feature breakdown, colours, and technical data. Useful for variant comparison.
Official · Tata Motors
Sierra.ev Accessories Price List (June 2026)
Official accessories catalogue with part codes and pricing. Use with the Accessories Tool on this site for building your order.
Official · Tata Motors
App setup guides
iRA.ev: Official Tata Motors Connected Car App
Vehicle status, remote commands, charge tracking, EV route planner, service booking. Note: pairing only works after RTO registration, not at PDI.
Official App
Tata Power EZ Charge App
Find and use Tata Power public charging stations. Required for public charging sessions, separate from iRA.ev.
Guide coming soon
Warranty & service
Sierra.ev Warranty: What is covered
Vehicle: 3 years / 1,25,000 km. HV battery: 15 years / 5,00,000 km (first private owner, 70% SOH trigger, authorised service + telematics required). E-drive motor: vehicle warranty only, not lifetime.
Official Terms
Extended Warranty: Tata.ev
Option 3 (3+3 years) recommended for high-mileage owners. Must be purchased within 90 days of delivery.
Official
Roadside Assistance: 24×7
Tata Motors RSA: 1800 209 8282 (toll-free). Also accessible via the iRA.ev app. Available for all Sierra.ev variants.
Official
Community knowledge
r/TataSierra_ev: Owner Discussion
Real owner experiences, delivery reports, known issues, range data, and fixes. The most active Sierra.ev community on Reddit India.
Community
Sierra.ev India Owners: WhatsApp Community
S·URGE (Sierra United Rangers of EVs). Share tips, range data, and delivery experiences with verified owners.
S·URGE Community
Indianomics TV: Sierra.ev Videos
Ownership videos, range tests, PDI walkthroughs, and accessory reviews by Hemz.
Indianomics TV
Charging Guide: India Public Network
CCS2 public charger network, Tata Power locations, BPCL, and third-party apps for Sierra.ev.
Coming soon
In progress
Real-World Range Data: Owner Reports
Aggregated range figures from S·URGE community members across city, highway, and mixed conditions.
Coming soon
In progress
Missing a document? If you have an official Tata document not listed here (warranty card, ACFC charger manual, Tata Power installation guide), share it in the WhatsApp community or on r/TataSierra_ev and it will be added here.